Logitech G915 X LIGHTSPEED vs Logitech MX Mechanical

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDEnglish UK (QWERTY)

Logitech MX MechanicalEnglish US QWERTY (ANSI)

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · UK SKU 920-012675. The official UK image shows the ISO arrangement (tall Enter, £ on 3); US-layout SKUs are separate products.

Logitech MX Mechanical

Logitech MX Mechanical — US product page, SKU list and technical specifications

Check the exact configuration and source conditions for your use.

Exact switch option

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDLow-profile GL tactile mechanical switches

Logitech MX MechanicalLow-profile mechanical, Tactile Quiet (brown)

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · This SKU is the Tactile option; the UK Clicky option is SKU 920-012708. The manufacturer labels the selected style “Tactile”; canonical casing matches the same GL tactile switch option on the wired G915 X.

Logitech MX Mechanical

Manufacturer specification · One of three factory switch options (Tactile Quiet, Clicky, Linear); this SKU carries the Tactile Quiet switch, which Logitech describes as having a small discernible bump and little sound. Logitech does not name the switch manufacturer.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)How do I know which type of switch suits me? (Logitech Support, MX Mechanical)

Check the exact configuration and source conditions for your use.

Connections

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDLIGHTSPEED wireless (USB receiver); Bluetooth; wired USB-C data mode

Logitech MX MechanicalBluetooth; Logi Bolt

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Logitech explicitly supports wired keyboard operation through the included USB-C data/charging cable. LIGHTSPEED, Bluetooth and wired operation are all supported; a shorter inventory cannot give a wired-only contender an unsupported wired-connection advantage.

Logitech MX Mechanical

Manufacturer specification · Original exact published inventory: Logi Bolt USB receiver or Bluetooth Low Energy; up to three paired devices with Easy-Switch; USB-C charging. Not compatible with Logitech Unifying USB receivers. 10 m wireless range per Logitech, which may vary with operating environment and computer setup. The Logi Bolt receiver is included. Bluetooth version, operating-system requirements, three-device Easy-Switch, range/test scope and receiver inclusion retain their original source scope. A USB receiver host connection does not establish wired keyboard data.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Check the exact configuration and source conditions for your use.

Keyboard span across the desk

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEED475 mm

Logitech MX Mechanical433.85 mm

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Width across the key rows (Logitech labels this Length).

Logitech MX Mechanical

Manufacturer specification · Width across the key rows.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

A size or weight trade-off; it does not establish the better product.

Configuration software

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDLogitech G HUB

Logitech MX MechanicalLogi Options+ (Windows and macOS); Logitech Flow with a Flow-enabled mouse

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Uses Logitech G HUB. Original published inventory: KEYCONTROL per-key customisation, macros and remapping. This common application name does not equate source-specific KEYCONTROL layers, per-key maxima, selected-key programming, rapid trigger, analog actions or Game Mode behaviour. Those exact positives and unresolved counterpart scopes remain separately represented.

Logitech MX Mechanical

Manufacturer specification

Logitech MX Mechanical — US product page, SKU list and technical specifications

Physical keys, software assignments and stored profiles are different capabilities. Check the host-software requirements; a larger count does not establish better typing or lower latency.

Backlighting

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDLIGHTSYNC RGB

Logitech MX MechanicalWhite backlit keys with hand-proximity and ambient-light sensors

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech MX Mechanical

Manufacturer specification · Backlighting effects selectable in Logi Options+.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Lighting zones and per-key control differ. RGB does not by itself establish individual-key colour control; read the software requirements.

Show 9 more verified differences

Keycap material

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech G915 X LIGHTSPEEDDouble-shot PBT

Logitech MX MechanicalLow-profile matte keycaps in two colours

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech MX Mechanical

Manufacturer specification

Logitech MX Mechanical — US product page, SKU list and technical specifications

Check the exact configuration and source conditions for your use.

Media controls

Logitech G915 X LIGHTSPEEDDedicated media controls

Logitech MX MechanicalDictation, emoji, search and mute/unmute microphone

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Logitech names the media keys, and the material inventory explicitly identifies a metal roller (low-carbon aluminium). The official UK image shows previous, play/pause, next and mute beside the roller. Metal construction is not established for the compared PRO X TKL; the shared control inventory does not claim equal roller material. Original published inventory: Media controls and roller. This common field records dedicated media-control availability only. Exact visible button labels, roller/buttons, lighting/Game Mode/profile controls and application dependence retain their own conditions; an omitted playback function or roller material is not a peer absence.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · Named official special-key inventory; current product source also permits Fn customisation through Options+ on Windows/macOS. No unlisted contender shortcut absence or productivity measurement is established.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Check the exact configuration and source conditions for your use.

Battery claim

Logitech G915 X LIGHTSPEEDUp to 36 hours at 100% LIGHTSYNC RGB brightness; up to 90 hours at 50%; up to 800 hours with RGB off

Logitech MX MechanicalUp to 15 days with backlighting, or up to 10 months with backlighting off

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Continuous-use claims. RGB must be disabled with the keyboard brightness button for the maximum figure; Logitech notes G HUB then reports no more than 236 hours.

Logitech MX Mechanical

Manufacturer specification · Logitech: battery life may vary based on user and computing conditions. The support article gives 4 hours to charge from empty to full.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Dimensions

Logitech G915 X LIGHTSPEED475 × 150 × 22.6 mm (length across the keys × width front-to-back × height)

Logitech MX Mechanical433.85 × 131.55 × 26.1 mm (across keys × front-to-back × height)

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Logitech labels these Length 475 mm, Width 150 mm and Height 22.6 mm; its feature copy rounds the height to 23 mm.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · The US product page labels these Width 433.85 mm, Height 131.55 mm and Depth 26.1 mm; the support article labels the same values Width 433.85 mm, Depth 131.55 mm and Height 26.10 mm. Palm rest is sold separately.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

A size or weight trade-off; it does not establish the better product.

Switch actuation force

Logitech G915 X LIGHTSPEED45 g

Logitech MX Mechanical55 g

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Tactile option; Logitech lists 43 g for linear and 48 g for clicky.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · Single value in Logitech's MX Mechanical specification article, which does not distinguish between the three switch options.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Actuation point, total travel and operating force are different measurements. None alone establishes input latency, typing comfort or gaming performance.

Battery type

Logitech G915 X LIGHTSPEEDRechargeable lithium polymer

Logitech MX MechanicalRechargeable Li-Po, 1500 mAh

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech MX Mechanical

Manufacturer specification

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Included cable length

Logitech G915 X LIGHTSPEED1.8 m

Logitech MX Mechanical1 m

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · Supplied USB-C to USB-A charging cable; the keyboard is used wirelessly.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Check the exact configuration and source conditions for your use.

Original package contents

Logitech G915 X LIGHTSPEEDKeyboard; LIGHTSPEED USB receiver; USB extender; USB-C data/charging cable; user documentation

Logitech MX MechanicalKeyboard; Logi Bolt USB receiver; USB-C charging cable (USB-A to USB-C); user documentation

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech MX Mechanical

Manufacturer specification

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Check the exact configuration and source conditions for your use.

Manufacturer-stated weight

Logitech G915 X LIGHTSPEED1080 g

Logitech MX Mechanical828 g

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Logitech states this weight without the cable.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · Official model YR0082 support Physical Specifications Keyboard row:828g; retail-box dimensions are separate. The source does not explicitly document a cable/accessory exclusion or a measurement protocol.

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

A size or weight trade-off; it does not establish the better product.

Configuration & compatibility details (1)

Supported operating systems

Logitech G915 X LIGHTSPEEDLIGHTSPEED: USB port; Windows 10 v.1809 or later; macOS X 10.11 or later. Bluetooth: Bluetooth-enabled devices; Windows 11 or later; macOS 11 or later; ChromeOS; Android 4.3 or later; iOS 10 or later

Logitech MX MechanicalBluetooth: Windows 10, 11 or later; macOS 10.15 or later; iOS and iPadOS 14 or later; Android 8.0 or later; Linux and ChromeOS (basic functions). Logi Bolt receiver: Windows 10, 11 or later, macOS, Linux and ChromeOS (requires a USB-A port)

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Internet access for Logitech G HUB is listed as optional.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Manufacturer specification · Current US product page. Basic functions only without software on systems other than Windows and macOS; Logi Options+ customisation is Windows/macOS only.

Logitech MX Mechanical — US product page, SKU list and technical specifications

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Missing or non-comparable evidence (15)

Dedicated macro keys

Logitech G915 X LIGHTSPEED9 keys

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · Nine dedicated G keys; KEYCONTROL can also remap other keys.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Onboard profile capacity

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Logitech does not list a stored-profile count on the G915 X LIGHTSPEED UK page. · Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Key rollover

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Logitech does not list a rollover figure on the G915 X LIGHTSPEED UK page. · Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Hot-swappable switches

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Logitech does not state hot-swap support on the G915 X LIGHTSPEED UK page. · Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

Logitech does not state hot-swap support on the product page or specification article; left unknown rather than assumed. · Manufacturer specification

Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Construction materials

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalLow-carbon aluminum and plastic

Sources

Logitech G915 X LIGHTSPEED

No source recorded for this side.

Logitech MX Mechanical

Manufacturer specification · Manufacturer material inventory, without a measured rigidity, durability, acoustic or sustainability advantage versus another keyboard.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Claimed functions per key

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

No exact per-key function maximum is established by the retained current interpretation. Dedicated G-key counts, multiple layers and two analog stages do not supply a 15-function maximum; the positive programming subset remains known. · Manufacturer specification

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated keypress durability

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX Mechanical50 million keypresses

Sources

Logitech G915 X LIGHTSPEED

No source recorded for this side.

Logitech MX Mechanical

Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Programmable key support

Logitech G915 X LIGHTSPEEDYes

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · The exact source positively establishes programmable keys or assignments. This does not establish every key, a dedicated physical G-key count, a maximum function count or platform-independent operation. KEYCONTROL per-key customisation, macros and remapping. Uses Logitech G HUB.

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

KEYCONTROL support

Logitech G915 X LIGHTSPEEDYes

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · The exact own-model source explicitly names KEYCONTROL. Its count and layered/analog scopes remain model-specific.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Media roller present

Logitech G915 X LIGHTSPEEDYes

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · The own-model source/original positively shows a roller. Function, material and programmability remain independently conditioned; no absent peer roller is inferred.

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Onboard lighting profiles

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

The retained exact-model lighting description does not establish onboard lighting-profile storage. · Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dedicated playback/track controls

Logitech G915 X LIGHTSPEEDYes

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification · The exact source/original establishes dedicated playback and track controls. G710+, G213 and Alloy Core originals additionally show a stop-labelled key; this does not establish an unlisted peer absence. Media controls and roller

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Top plate

Logitech G915 X LIGHTSPEEDBrushed aluminium alloy top plate

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Volume control mechanism

Logitech G915 X LIGHTSPEEDNot verified

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

A roller is positively listed/visible, but the exact retained source does not independently name its volume function. Preserve that roller positive and leave the precise volume-function mechanism unresolved. Media controls and roller · Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Wired USB keyboard mode

Logitech G915 X LIGHTSPEEDYes

Logitech MX MechanicalNot verified

Sources

Logitech G915 X LIGHTSPEED

Manufacturer specification

Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications

Logitech MX Mechanical

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

3 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Logitech G915 X LIGHTSPEED

What it brings

It keeps a full number pad and nine dedicated G keys for macros, with KEYCONTROL remapping handled in G HUB.
Manufacturer source
LIGHTSPEED, Bluetooth and a wired USB-C mode are all supported, and Logitech publishes battery claims at 100%, 50% and zero RGB brightness.
Manufacturer source

What to check

At 475 mm long and 1,080 g without the cable it needs far more desk width than the tenkeyless versions.
Manufacturer source
The full-brightness battery claim is 36 hours, and Logitech lists no hot-swap, rollover or onboard-profile figures for this model.
Manufacturer source

Logitech MX Mechanical

What it brings

Pairs with up to three devices over the supplied Logi Bolt receiver or Bluetooth Low Energy. Logi Options+ customisation is supported on Windows and macOS; on iOS, iPadOS, Android, Linux and ChromeOS Logitech lists basic functions without software.
Manufacturer source
The Tactile Quiet switch gives a small bump with little sound, which Logitech positions as the closest of its three options to MX Keys typing; Logitech rates the keys for 50 million presses.
Manufacturer source Manufacturer source
Logitech claims up to 15 days per charge with backlighting or up to 10 months with it off from a 1500 mAh battery charged over USB-C.
Manufacturer source Manufacturer source

What to check

At 433.85 mm across and 828 g this is the full-size model with an integrated numpad; Logitech offers the space-saving minimalist MX Mechanical Mini for buyers who want a smaller board.
Manufacturer source Manufacturer source
The switch type is fixed per SKU and Logitech does not state hot-swap support, so choosing Tactile Quiet, Clicky or Linear is a purchase-time decision.
Manufacturer source Manufacturer source
Logi Bolt only: older Unifying receivers do not work with it, and Logi Options+ customisation is limited to Windows and macOS.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

34 of 34 specifications Sources in each row

Source-backed specifications for Logitech G915 X LIGHTSPEED and Logitech MX Mechanical
Specification	Logitech G915 X LIGHTSPEED	Logitech MX Mechanical

Regional layoutDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · UK SKU 920-012675. The official UK image shows the ISO arrangement (tall Enter, £ on 3); US-layout SKUs are separate products. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · SKU 920-010547 is Logitech's Graphite English US (QWERTY) Tactile Quiet configuration; 920-010549 (Clicky) and 920-010548 (Linear) are the same layout with other switches. The wide single-row Enter key and @ on 2 are visible in the official US image. Logitech MX Mechanical — US product page, SKU list and technical specifications	English UK (QWERTY)	English US QWERTY (ANSI)
Keyboard size Sources Logitech G915 X LIGHTSPEED Manufacturer specification · The exact original also has nine dedicated physical G-keys, retained separately in Dedicated G-keys. Macro layers, media controls and top-plate finish remain source-specific facts and do not change the full-size layout class. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Logitech describes the MX Mechanical as the full-size model with an integrated numpad; the MX Mechanical Mini is the separate compact model. Low-profile construction is retained in switches and keycaps, rather than treated as a distinct full-size layout class. Logitech MX Mechanical — US product page, SKU list and technical specifications	Full-size with number pad	Full size with number pad
DimensionsDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Logitech labels these Length 475 mm, Width 150 mm and Height 22.6 mm; its feature copy rounds the height to 23 mm. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · The US product page labels these Width 433.85 mm, Height 131.55 mm and Depth 26.1 mm; the support article labels the same values Width 433.85 mm, Depth 131.55 mm and Height 26.10 mm. Palm rest is sold separately. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	475 × 150 × 22.6 mm (length across the keys × width front-to-back × height)	433.85 × 131.55 × 26.1 mm (across keys × front-to-back × height)
Supported operating systemsDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Internet access for Logitech G HUB is listed as optional. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Current US product page. Basic functions only without software on systems other than Windows and macOS; Logi Options+ customisation is Windows/macOS only. Logitech MX Mechanical — US product page, SKU list and technical specifications	LIGHTSPEED: USB port; Windows 10 v.1809 or later; macOS X 10.11 or later. Bluetooth: Bluetooth-enabled devices; Windows 11 or later; macOS 11 or later; ChromeOS; Android 4.3 or later; iOS 10 or later	Bluetooth: Windows 10, 11 or later; macOS 10.15 or later; iOS and iPadOS 14 or later; Android 8.0 or later; Linux and ChromeOS (basic functions). Logi Bolt receiver: Windows 10, 11 or later, macOS, Linux and ChromeOS (requires a USB-A port)
Keyboard span across the deskDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Width across the key rows (Logitech labels this Length). Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Width across the key rows. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	475 mm	433.85 mm
Manufacturer-stated weightDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Logitech states this weight without the cable. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Official model YR0082 support Physical Specifications Keyboard row:828g; retail-box dimensions are separate. The source does not explicitly document a cable/accessory exclusion or a measurement protocol. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	1080 g	828 g
Top plate Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Brushed aluminium alloy top plate	Not provided
Construction materials Sources Logitech G915 X LIGHTSPEED No source recorded. Logitech MX Mechanical Manufacturer specification · Manufacturer material inventory, without a measured rigidity, durability, acoustic or sustainability advantage versus another keyboard. Specification - MX Mechanical (Logitech Support)	Not provided	Low-carbon aluminum and plastic

Exact switch optionDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · This SKU is the Tactile option; the UK Clicky option is SKU 920-012708. The manufacturer labels the selected style “Tactile”; canonical casing matches the same GL tactile switch option on the wired G915 X. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · One of three factory switch options (Tactile Quiet, Clicky, Linear); this SKU carries the Tactile Quiet switch, which Logitech describes as having a small discernible bump and little sound. Logitech does not name the switch manufacturer. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)How do I know which type of switch suits me? (Logitech Support, MX Mechanical)	Low-profile GL tactile mechanical switches	Low-profile mechanical, Tactile Quiet (brown)
Switch actuation distance Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Single value in Logitech's MX Mechanical specification article, which does not distinguish between the three switch options. Specification - MX Mechanical (Logitech Support)	1.3 mm	1.3 mm
Switch total travel Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Single value in Logitech's MX Mechanical specification article, which does not distinguish between the three switch options. Specification - MX Mechanical (Logitech Support)	3.2 mm	3.2 mm
Switch actuation forceDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Tactile option; Logitech lists 43 g for linear and 48 g for clicky. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Single value in Logitech's MX Mechanical specification article, which does not distinguish between the three switch options. Specification - MX Mechanical (Logitech Support)	45 g	55 g
Keycap materialDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification Logitech MX Mechanical — US product page, SKU list and technical specifications	Double-shot PBT	Low-profile matte keycaps in two colours
Rated keypress durability Sources Logitech G915 X LIGHTSPEED No source recorded. Logitech MX Mechanical Manufacturer specification Specification - MX Mechanical (Logitech Support)	Not provided	50 million keypresses

ConnectionsDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Logitech explicitly supports wired keyboard operation through the included USB-C data/charging cable. LIGHTSPEED, Bluetooth and wired operation are all supported; a shorter inventory cannot give a wired-only contender an unsupported wired-connection advantage. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Original exact published inventory: Logi Bolt USB receiver or Bluetooth Low Energy; up to three paired devices with Easy-Switch; USB-C charging. Not compatible with Logitech Unifying USB receivers. 10 m wireless range per Logitech, which may vary with operating environment and computer setup. The Logi Bolt receiver is included. Bluetooth version, operating-system requirements, three-device Easy-Switch, range/test scope and receiver inclusion retain their original source scope. A USB receiver host connection does not establish wired keyboard data. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	LIGHTSPEED wireless (USB receiver); Bluetooth; wired USB-C data mode	Bluetooth; Logi Bolt
Included cable lengthDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Supplied USB-C to USB-A charging cable; the keyboard is used wirelessly. Specification - MX Mechanical (Logitech Support)	1.8 m	1 m
Battery claimDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Continuous-use claims. RGB must be disabled with the keyboard brightness button for the maximum figure; Logitech notes G HUB then reports no more than 236 hours. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Logitech: battery life may vary based on user and computing conditions. The support article gives 4 hours to charge from empty to full. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	Up to 36 hours at 100% LIGHTSYNC RGB brightness; up to 90 hours at 50%; up to 800 hours with RGB off	Up to 15 days with backlighting, or up to 10 months with backlighting off
Battery typeDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	Rechargeable lithium polymer	Rechargeable Li-Po, 1500 mAh
Wired USB keyboard mode Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Yes	Not provided

BacklightingDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Backlighting effects selectable in Logi Options+. Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	LIGHTSYNC RGB	White backlit keys with hand-proximity and ambient-light sensors
Media controlsDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Logitech names the media keys, and the material inventory explicitly identifies a metal roller (low-carbon aluminium). The official UK image shows previous, play/pause, next and mute beside the roller. Metal construction is not established for the compared PRO X TKL; the shared control inventory does not claim equal roller material. Original published inventory: Media controls and roller. This common field records dedicated media-control availability only. Exact visible button labels, roller/buttons, lighting/Game Mode/profile controls and application dependence retain their own conditions; an omitted playback function or roller material is not a peer absence. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification · Named official special-key inventory; current product source also permits Fn customisation through Options+ on Windows/macOS. No unlisted contender shortcut absence or productivity measurement is established. Specification - MX Mechanical (Logitech Support)	Dedicated media controls	Dictation, emoji, search and mute/unmute microphone
Dedicated macro keys Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Nine dedicated G keys; KEYCONTROL can also remap other keys. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	9 keys	Not provided
Configuration softwareDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification · Uses Logitech G HUB. Original published inventory: KEYCONTROL per-key customisation, macros and remapping. This common application name does not equate source-specific KEYCONTROL layers, per-key maxima, selected-key programming, rapid trigger, analog actions or Game Mode behaviour. Those exact positives and unresolved counterpart scopes remain separately represented. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification Logitech MX Mechanical — US product page, SKU list and technical specifications	Logitech G HUB	Logi Options+ (Windows and macOS); Logitech Flow with a Flow-enabled mouse
Programmable key support Sources Logitech G915 X LIGHTSPEED Manufacturer specification · The exact source positively establishes programmable keys or assignments. This does not establish every key, a dedicated physical G-key count, a maximum function count or platform-independent operation. KEYCONTROL per-key customisation, macros and remapping. Uses Logitech G HUB. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Yes	Not provided
KEYCONTROL support Sources Logitech G915 X LIGHTSPEED Manufacturer specification · The exact own-model source explicitly names KEYCONTROL. Its count and layered/analog scopes remain model-specific. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Yes	Not provided
Dedicated playback/track controls Sources Logitech G915 X LIGHTSPEED Manufacturer specification · The exact source/original establishes dedicated playback and track controls. G710+, G213 and Alloy Core originals additionally show a stop-labelled key; this does not establish an unlisted peer absence. Media controls and roller Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Yes	Not provided
Media roller present Sources Logitech G915 X LIGHTSPEED Manufacturer specification · The own-model source/original positively shows a roller. Function, material and programmability remain independently conditioned; no absent peer roller is inferred. Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Yes	Not provided

Original package contentsDifferent Sources Logitech G915 X LIGHTSPEED Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Manufacturer specification Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	Keyboard; LIGHTSPEED USB receiver; USB extender; USB-C data/charging cable; user documentation	Keyboard; Logi Bolt USB receiver; USB-C charging cable (USB-A to USB-C); user documentation

Show unverified (6)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Onboard profile capacity Sources Logitech G915 X LIGHTSPEED Logitech does not list a stored-profile count on the G915 X LIGHTSPEED UK page. · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Not provided	Not provided
Hot-swappable switches Sources Logitech G915 X LIGHTSPEED Logitech does not state hot-swap support on the G915 X LIGHTSPEED UK page. · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical Logitech does not state hot-swap support on the product page or specification article; left unknown rather than assumed. · Manufacturer specification Logitech MX Mechanical — US product page, SKU list and technical specifications Specification - MX Mechanical (Logitech Support)	Not provided	Not listed by the manufacturer
Key rollover Sources Logitech G915 X LIGHTSPEED Logitech does not list a rollover figure on the G915 X LIGHTSPEED UK page. · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Not provided	Not provided
Onboard lighting profiles Sources Logitech G915 X LIGHTSPEED The retained exact-model lighting description does not establish onboard lighting-profile storage. · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Not listed by the manufacturer	Not provided
Claimed functions per key Sources Logitech G915 X LIGHTSPEED No exact per-key function maximum is established by the retained current interpretation. Dedicated G-key counts, multiple layers and two analog stages do not supply a 15-function maximum; the positive programming subset remains known. · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Not listed by the manufacturer	Not provided
Volume control mechanism Sources Logitech G915 X LIGHTSPEED A roller is positively listed/visible, but the exact retained source does not independently name its volume function. Preserve that roller positive and leave the precise volume-function mechanism unresolved. Media controls and roller · Manufacturer specification Logitech G915 X LIGHTSPEED — UK product page, SKU data and specifications Logitech MX Mechanical No source recorded.	Not listed by the manufacturer	Not provided

First product manufacturer source Second product manufacturer source

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