400 Smart
6.77″ · TFT LCD · 120 Hz · Qualcomm Snapdragon 685
128 GB · 6 GB RAM · Velvet Black · UK LGN-LX1Full product profile
Velvet Black6.77″ · TFT LCD · 120 Hz · Qualcomm Snapdragon 685
128 GB · 6 GB RAM · Velvet Black · UK LGN-LX1Full product profile
Velvet BlackWHO EACH ONE SUITS
Choose the 400 Smart if…
Choose the Phone (3a) Pro if…
6.77″ · Flexible AMOLED · 120 Hz · Snapdragon 7s Gen 3 5G
256 GB · 12 GB RAM · Grey · UK 6974434224438Full product profile
GreyListed configurations: 400 Smart 128 GB, Phone (3a) Pro 256 GB. Storage is a tier you choose, not a difference between the models; no matching tier is listed for both yet.
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Differences first. Select a topic for its graphic, sources and conditions.
A different chip or core configuration is a hardware change, not a measured performance uplift.
Bigger is a preference, not a quality score.
Relative diagonals · illustrative shape, not actual size
Dedicated telephoto reach. No digital or crop zoom.
Lens illustration · not an image-quality test
Up-to claims. Different test methods; no endurance winner.
Arcs on a shared 0–40 h scale · not mixed-use battery life
14 verified differences, most decision-relevant first. 4 are also drawn in Visual facts above. 1 manufacturer description restating separately listed fields is grouped below. Missing information stays separate.
Different hardware. A chip name or generation does not quantify real-world performance.
Typical UK capacity; it is not a measured battery-life result.
HONOR UK 400 Smart complete technical specificationsCapacity row on the UK product page. No regional battery variant is listed.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsCapacity, charger power and bypass operation describe different capabilities. They do not establish measured runtime or a comparable charging time; check the exact test conditions and accessories.
Up to 35W (11V/3.2A) with the 35W HONOR charger and cable; actual power varies.
HONOR UK 400 Smart complete technical specificationsHONOR UK 400 Smart display features and operating conditionsCapacity, charger power and bypass operation describe different capabilities. They do not establish measured runtime or a comparable charging time; check the exact test conditions and accessories.
The 4K frame rate is not published. Details: main 24 mm, 1/1.56" sensor, 84.5° field of view, OIS and EIS, dual pixel PDAF autofocus; periscope 70 mm, 1/1.95" sensor, 33.6° field of view, OIS and EIS, autofocus, 6x in-sensor and 60x ultra zoom; ultra-wide 15 mm, 1/4" sensor, 120° field of view; front 24 mm, 1/2.76" sensor, 81.2° field of view.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsCompare the camera hardware and recording modes. Matching megapixels or zoom do not mean identical cameras.
700 nits typical brightness; 16.7 million colours; multi-touch with up to 10 touch points.
HONOR UK 400 Smart complete technical specificationsHONOR UK 400 Smart display features and operating conditionsFull published display specification: 6.77-inch flexible AMOLED; 1084 x 2392 (387 PPI); Panda glass; 10-bit colour (1.07 billion colours); 1,000,000:1 contrast ratio; Brightness: 3000 nits peak, 1300 nits outdoor, 800 nits typical; 120 Hz adaptive refresh rate; 1000 Hz touch sampling rate; 2160 Hz PWM frequency.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsCheck the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Minimum declared on the EU product-information sheet; no Android version-upgrade count or end date is published.
HONOR 400 Smart supplier product-information sheet, model LGN-LX1The footnote words the operating-system term as "three Android updates"; the specification rows say 3 years.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsDistinguish Android upgrades from security coverage. A total term from launch is not the support remaining from today or from purchase.
Typical capacity (rated 6350 mAh); Li-ion polymer; up to 35W (11V/3.2A) with the 35W HONOR SuperCharge charger. No wireless charging is listed.
HONOR UK 400 Smart complete technical specificationsFull published battery specification: 5000 mAh; 50 W wired charging; 7.5 W reverse wired charging; 50% charge in 19 minutes; full charge in 56 minutes.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsManufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.
Check the exact configuration and source conditions for your use.
Compare the camera hardware and recording modes. Matching megapixels or zoom do not mean identical cameras.
From the linked exact-model product-information sheet; protection is conditional, not a waterproofing guarantee.
HONOR 400 Smart supplier product-information sheet, model LGN-LX1Check the exact configuration and source conditions for your use.
Operating system at launch as listed. The update term is in the Update policy field.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsCheck the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Compare the camera hardware and recording modes. Matching megapixels or zoom do not mean identical cameras.
Combined manufacturer descriptions whose values are listed as separate differences. Kept here so every verified difference stays in one list.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
Selected black finish, including battery; other finishes may differ.
HONOR UK 400 Smart complete technical specificationsA size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A configuration choice: the storage tier of each exact variant compared. Most models are sold in several tiers, so this is not a difference between the models.
A configuration choice: the storage tier of each exact variant compared. Most models are sold in several tiers, so this is not a difference between the models.
Check carrier support if you plan to use it outside the UK.
HONOR UK 400 Smart complete technical specificationsHONOR 400 Smart supplier product-information sheet, model LGN-LX1HONOR UK 400 Smart exact configuration and official product galleryUK model connectivity: SIM: dual SIM, Nano-SIM (4FF); eSIM: yes (excluding India); Gigabit LTE with 4x4 MIMO; Gigabit 5G: dual mode (NSA and SA) with 4x4 MIMO; 5G NR bands: n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n40, n41, n48, n66, n77, n78; 4G LTE bands: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 40, 41, 42, 48, 66; 3G UMTS (WCDMA): 1, 4, 5, 6, 8, 19; 2G GSM: 850/900/1800/1900; Wi-Fi 6 (802.11 a/b/g/n/ac/ax), 2.4/5 GHz; Bluetooth 5.4; NFC with Google Pay support; Location: GPS (L1), GLONASS (G1), BDS (B1I), Galileo (E1), QZSS (L1). Check carrier support if you plan to use it outside the UK.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsThese descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.
No 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.
OIS listed for the main and periscope cameras; the ultra-wide lists none.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Stated for the main (Dual pixel PDAF) and periscope cameras; not stated for the 8 MP ultra-wide.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
The manufacturer does not say whether the front camera has autofocus.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
The manufacturer does not say whether the front camera has optical stabilisation.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
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Not verified for this exact model.
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Manufacturer conditions apply; adapters are separate unless the box contents say otherwise.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Manufacturer HBM figure; typical brightness is 700 nits. Not an independent measurement.
HONOR UK 400 Smart complete technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
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Evidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
No source recorded for this side.
Security-patch term counted from first availability. The Android update term (3 years) is stated separately.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
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Evidence is missing or conflicting on at least one side. This is not a verified difference.
HONOR UK lists Bluetooth 5.0 (BT5.0) for this model.
HONOR UK 400 Smart complete technical specificationsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Declared on the EU product information sheet under its standard test; not a video-playback figure or an independent test.
HONOR 400 Smart supplier product-information sheet, model LGN-LX1No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Declared on the EU product information sheet under its standard test; not a video-playback figure or an independent test.
HONOR 400 Smart supplier product-information sheet, model LGN-LX1No 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.
Rear light patterns for notifications, calls, volume and music sync. Not a dot-matrix Glyph display.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
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Not verified for this exact model.
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Evidence is missing or conflicting on at least one side. This is not a verified difference.
Physical side button: single press launches commands/apps; long press for Smart Recommendations. Some features arrive via OTA and vary by region/language.
HONOR UK 400 Smart display features and operating conditionsNo source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
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Not verified for this exact model.
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Evidence is missing or conflicting on at least one side. This is not a verified difference.
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Not verified for this exact model.
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Not verified for this exact model.
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No HDR or peak brightness claim is published. The spec gives 850nit (HBM) and 700nit (typical); HBM is stored in hbm_brightness.
HONOR UK 400 Smart complete technical specificationsManufacturer peak brightness; not sustained full-screen brightness or an independent measurement.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Pixel density is not stated by the manufacturer.
HONOR UK 400 Smart display features and operating conditionsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
HONOR UK 400 Smart display features and operating conditionsEvidence is missing or conflicting on at least one side. This is not a verified difference.
Not verified for this exact model.
No source recorded for this side.
Reverse wired charging is a separate feature from reverse wireless charging.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
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Rear and front video are listed up to 1080p; 8K recording is not mentioned.
HONOR UK 400 Smart complete technical specificationsNothing advertises 4K recording in MP4 format; 8K recording is not mentioned.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
A missing wireless-charging entry is kept unknown.
HONOR UK 400 Smart complete technical specificationsNot stated by the manufacturer.
Nothing UK Phone (3a) Pro: selected configuration and complete specificationsEvidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
4 shared fields have the same recorded value.
Forget the brand for a moment. Which set of specs feels more like you?
Manufacturer specifications verified for both phones. Your choice doesn’t change the comparison above.
No category can be scored for both phones, so no score is shown. Manufacturer battery claims can use different test conditions. Verified specifications remain visible even where a category cannot be scored.
How we calculate scores128 GB · checked 28 Sept 2026
Selected black finish, including battery; other finishes may differ.
HONORRectangular diagonal; rounded corners reduce viewable area.
HONORNot published
Not published
Not published
Not published
Not published
Not published
The UK specification lists a physical SIM configuration.
HONORFrom the linked exact-model product-information sheet; protection is conditional, not a waterproofing guarantee.
HONORMaximum advertised refresh; the active rate varies by app, content and selected mode.
HONORNot published
Not published
256 GB · checked 28 Sept 2026
Manufacturer peak brightness; not sustained full-screen brightness or an independent measurement.
NothingNot published
Manufacturer conditions apply; adapters are separate unless the box contents say otherwise. 50 divided by 19 minutes; not a sustained charging rate.
NothingSecurity-patch term counted from first availability. The Android update term (3 years) is stated separately.
NothingNot published
Not published
Not published
Not published
The verified differences and their sources, in one link.