Off-White · 910-007120 · UK manufacturer configuration
The Logitech M240 Silent is a compact, ambidextrous Bluetooth mouse with SilentTouch quiet clicks, three buttons and up to 18 months from one AA battery.
Specifications checked 27 Sept 2026.
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Manufacturer specificationsChoose the M240 Silent Bluetooth Mouse for
Choose the Signature Comfort Plus M850 L for
Graphite · 910-007715 · UK manufacturer configuration
The Signature Comfort Plus M850 L (UK part 910-007715, Graphite) is a right-handed mouse for home, office and hybrid work that Logitech describes as its first with a palm cushion. It has quiet clicks, six buttons including a DPI button, runs on one AA battery for up to 24 months, and connects over Bluetooth (Bolt receiver sold separately).
Specifications checked 26 Sept 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
Manufacturer specification · Logitech says it pairs over Bluetooth with no dongle or port required.
Manufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready.
Choose the grip, then check the connection. Left-side thumb controls are not a mirrored left-handed layout. Check the receiver or USB connection, battery requirements and your preferred shape. DPI is tracking resolution, not an accuracy score; no gaming winner is inferred.
10 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Manufacturer specification · Logitech says it pairs over Bluetooth with no dongle or port required.
Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageSpecification - M240 — Logitech SupportManufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Logitech lists 3 buttons (left/right click and middle click) plus a connectivity button.
Specification - M240 — Logitech SupportManufacturer specification · Left/right click, scroll-wheel middle click, side buttons and DPI button; 4 programmable.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsPhysical clicks, programmable wheel actions and optional side buttons can produce different counts. Read each configuration; a larger count does not establish better control or programmability.
Manufacturer specification · Logitech says the M240 Silent is designed to be equally comfortable for left- and right-handed users; it has no side buttons. Not a grip or comfort test.
Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageManufacturer specification · Sculpted right-hand shape with palm cushion and rubber side grips.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Logitech's listed height (front-to-back in its top-view convention).
Specification - M240 — Logitech SupportManufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Logitech's rating with auto sleep; test conditions are not stated.
Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageSpecification - M240 — Logitech SupportManufacturer specification · Actual battery life varies by usage.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsManufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.
Manufacturer specification · Manufacturer box contents; no receiver is included. Check the seller's listing.
Specification - M240 — Logitech SupportManufacturer specification · No receiver included.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Logitech's claim: 90% noise reduction on left/right and middle clicks compared with the Logitech M185; left-click dBA level measured by an independent lab at 1 m (product-page specifications).
Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageManufacturer specification · Logitech publishes no decibel or percentage figure. Original manufacturer description: Quiet clicks (Logitech: less noisy operation). These own claims do not establish a measured noise advantage over another quiet-click mouse.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsCheck the exact configuration and source conditions for your use.
Manufacturer specification · Overall width, not grip width.
Specification - M240 — Logitech SupportManufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification · Logitech lists height 99 mm, width 60 mm and depth 39 mm; as in other Logitech records in this catalogue, Logitech's height is the front-to-back length and its depth is the mouse's height.
Specification - M240 — Logitech SupportManufacturer specification · Logitech labels these Height 121.8 mm, Width 74.3 mm, Depth 44.2 mm; the first is the front-to-back length in its top-view convention.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsA size or weight trade-off; it does not establish the better product.
Manufacturer specification
Specification - M240 — Logitech SupportManufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsManufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.
Manufacturer specification · Logitech's OS/platform support at release; its system requirements also list Windows 7 and 8, macOS 10.10 or later and Android 5.0 or later.
Specification - M240 — Logitech SupportManufacturer specification · Device basic functions are supported without software on systems other than Windows and macOS (Linux, ChromeOS, iPadOS and Android).
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsThese descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.
No source recorded for this side.
Manufacturer specification · Original manufacturer description: SmartWheel; virtual horizontal scroll; no thumb wheel. Shared SmartWheel availability is comparable; unlisted counterpart horizontal/thumb-wheel details remain unknown.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
The individually reviewed exact source inventory does not identify a sensor model. The published method or description is retained separately. · Manufacturer specification
Specification - M240 — Logitech SupportManufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Logitech gives the Bluetooth report rate as 88–133 Hz (7.5–11.25 ms).
Specification - M240 — Logitech SupportLogitech does not list a report rate for this model. · Manufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification
Specification - M240 — Logitech SupportManufacturer specification · Original exact supported software description: Logi Options+; Logi Tune. The exact source additionally names Logi Tune; that positive is retained here. The predecessor source does not resolve Tune support, so omission cannot establish a missing app or capability.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsOne source states less detail or a rounded figure. This is not a verified difference; check the exact configuration.
No source recorded for this side.
Manufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification
Specification - M240 — Logitech SupportNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification · Logitech gives no recycled-content percentage on this page.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · Logitech lists the sensor as "Tcob, Smooth optical tracking"; no sensor model is named. Original manufacturer description: Smooth optical tracking. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred.
Specification - M240 — Logitech SupportNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsLogitech US — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Manufacturer specification
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer specification · With the AA battery, per Logitech; 50.7 g without battery.
Specification - M240 — Logitech SupportManufacturer specification · With the AA battery; receiver not included. 82.9 g without battery.
Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsThe manufacturer sources do not establish the same cable weighing basis. Both published masses remain visible with their conditions, but are not ranked.
2 shared fields have the same recorded value.
| Specification | Logitech M240 Silent Bluetooth Mouse | Logitech Signature Comfort Plus M850 L |
|---|---|---|
WeightDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · With the AA battery, per Logitech; 50.7 g without battery. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · With the AA battery; receiver not included. 82.9 g without battery. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 73.8 g | 107.9 g |
Weight without batteryDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 50.7 g | 82.9 g |
DimensionsDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech lists height 99 mm, width 60 mm and depth 39 mm; as in other Logitech records in this catalogue, Logitech's height is the front-to-back length and its depth is the mouse's height. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Logitech labels these Height 121.8 mm, Width 74.3 mm, Depth 44.2 mm; the first is the front-to-back length in its top-view convention. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 99 × 60 × 39 mm (length × width × height) | 121.8 × 74.3 × 44.2 mm (length × width × height) |
Body lengthDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech's listed height (front-to-back in its top-view convention). Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 99 mm | 121.8 mm |
Body widthDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Overall width, not grip width. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 60 mm | 74.3 mm |
Hand orientationDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech says the M240 Silent is designed to be equally comfortable for left- and right-handed users; it has no side buttons. Not a grip or comfort test. Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageLogitech Signature Comfort Plus M850 L Manufacturer specification · Sculpted right-hand shape with palm cushion and rubber side grips. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Ambidextrous | Right |
Glide feet SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L No source recorded. | PTFE (rated for a 250 km range) | Not provided |
Tracking method SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech lists the sensor as "Tcob, Smooth optical tracking"; no sensor model is named. Original manufacturer description: Smooth optical tracking. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L No source recorded. | Optical | Not provided |
Maximum tracking resolution SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Adjustable in steps of 100 DPI, per Logitech. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 4000 DPI | 4000 DPI |
Minimum sensitivity SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech lists 400 – 4000 DPI in steps of 100. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Adjustable in 100 DPI increments; nominal 1,000 DPI. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 400 DPI | 400 DPI |
Maximum report rate (Bluetooth) SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech gives the Bluetooth report rate as 88–133 Hz (7.5–11.25 ms). Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Logitech does not list a report rate for this model. · Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 133 Hz | Not listed by the manufacturer |
Sensor model SourcesLogitech M240 Silent Bluetooth Mouse The individually reviewed exact source inventory does not identify a sensor model. The published method or description is retained separately. · Manufacturer specification Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Not listed by the manufacturer | Pluto ONE (Logitech Advanced Optical tracking) |
Listed controlsDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech lists 3 buttons (left/right click and middle click) plus a connectivity button. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Left/right click, scroll-wheel middle click, side buttons and DPI button; 4 programmable. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 3 | 6 |
Scroll controls SourcesLogitech M240 Silent Bluetooth Mouse No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification · Original manufacturer description: SmartWheel; virtual horizontal scroll; no thumb wheel. Shared SmartWheel availability is comparable; unlisted counterpart horizontal/thumb-wheel details remain unknown. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Not provided | SmartWheel scrolling |
ConnectionsDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech says it pairs over Bluetooth with no dongle or port required. Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageSpecification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Bluetooth Low Energy; compatible with a Logi Bolt receiver (not included) | Bluetooth Low Energy; Logi Bolt USB receiver compatible (not included); up to 3 paired devices |
BatteryDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech's rating with auto sleep; test conditions are not stated. Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageSpecification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Actual battery life varies by usage. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | 1 × AA (pre-installed); up to 18 months | 1 × AA alkaline (included, replaceable); up to 24 months over Bolt or Bluetooth |
Wireless range SourcesLogitech M240 Silent Bluetooth Mouse No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Not provided | 10 m |
Customisation software SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Original exact supported software description: Logi Options+; Logi Tune. The exact source additionally names Logi Tune; that positive is retained here. The predecessor source does not resolve Tune support, so omission cannot establish a missing app or capability. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Logi Options+ (Windows 10, 11 or later and macOS 11 or later) | Logi Options+ |
Click noiseDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech's claim: 90% noise reduction on left/right and middle clicks compared with the Logitech M185; left-click dBA level measured by an independent lab at 1 m (product-page specifications). Logitech M240 Silent Bluetooth Mouse — Logitech UK product pageLogitech M240 Silent Bluetooth Mouse — Logitech US product pageLogitech Signature Comfort Plus M850 L Manufacturer specification · Logitech publishes no decibel or percentage figure. Original manufacturer description: Quiet clicks (Logitech: less noisy operation). These own claims do not establish a measured noise advantage over another quiet-click mouse. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | SilentTouch: 90% less click sound | Quiet clicks |
Listed compatibilityDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Logitech's OS/platform support at release; its system requirements also list Windows 7 and 8, macOS 10.10 or later and Android 5.0 or later. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · Device basic functions are supported without software on systems other than Windows and macOS (Linux, ChromeOS, iPadOS and Android). Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Windows 10, 11 or later; macOS 11 or later; iPadOS 14 or later; ChromeOS; Linux; Works with Surface; Android 9.0 or later | Bluetooth Low Energy required: Windows 10, 11 or later, macOS 12 or later, Linux, ChromeOS, iPadOS 15 or later, Android 12 or later |
Listed packageDifferent SourcesLogitech M240 Silent Bluetooth Mouse Manufacturer specification · Manufacturer box contents; no receiver is included. Check the seller's listing. Specification - M240 — Logitech SupportLogitech Signature Comfort Plus M850 L Manufacturer specification · No receiver included. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Mouse; 1 AA battery (pre-installed); user documentation | Mouse with 1 × AA battery; user documentation |
Certifications SourcesLogitech M240 Silent Bluetooth Mouse No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Not provided | Certified for WWCB; Engineered for Intel Evo laptops |
Materials SourcesLogitech M240 Silent Bluetooth Mouse No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification · Logitech gives no recycled-content percentage on this page. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications | Not provided | Made with recycled plastic |
Limited hardware warranty SourcesLogitech M240 Silent Bluetooth Mouse No source recorded. Logitech Signature Comfort Plus M850 L Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specificationsLogitech US — Signature Comfort Plus M850 L product page and technical specifications | Not provided | Conflicting sources |
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Closest mice to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
