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 (4a) Pro if…
6.83″ · Flexible AMOLED · 144 Hz · Qualcomm Snapdragon 7 Gen 4
128 GB · 8 GB RAM · Silver · UK 6974434228153Full product profile
SilverAs an Amazon Associate I earn from qualifying purchases.
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.
Published device weight, without a case.
Schematic balance · not a physical simulation
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
16 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 specificationsUK capacity; separately listed India-only variants are excluded.
Nothing UK Phone (4a) 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.
Nothing does not publish the ultra-wide camera's resolution. Details: main 1/1.56" sensor, OIS and EIS, 2x2 OCL PDAF autofocus, 2x in-sensor zoom, rapid shutter, Image Super Resolution (ISR); periscope 1/2.75" sensor, OIS and EIS, PDAF autofocus, 7x in-sensor and 140x ultra zoom; ultra-wide 1/4" sensor, 120° field of view; front 1/3.44" sensor, 89° field of view. Video: 4K Ultra XDR at 30 fps, 1080p Ultra XDR at 30 or 60 fps, 1080p slow motion at 120 fps, 4K/1080p time-lapse. TrueLens Engine 4 modes: Ultra XDR, Ultra XDR motion photo, AI Semantic Segmentation (12 layers), Portrait Optimiser, macro in the default mode, Night.
Nothing UK Phone (4a) 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: 6.83-inch flexible AMOLED; 1260 x 2800 (450 PPI); Corning Gorilla Glass 7i; 10-bit colour (1.07 billion colours); 1,000,000:1 contrast ratio; Brightness: 5000 nits peak, 1600 nits outdoor, 800 nits typical; 144 Hz adaptive refresh rate; up to 2500 Hz touch sampling rate; 2160 Hz PWM frequency.
Nothing UK Phone (4a) Pro: selected configuration and complete specificationsCheck the exact configuration and source conditions for your use.
Maximum advertised refresh; the active rate varies by app, content and selected mode.
HONOR UK 400 Smart display features and operating conditionsCheck 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-LX1Distinguish 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: 5080 mAh (UK; 5400 mAh in India only); 50 W wired charging; 7.5 W reverse wired charging; Charging protocols: PPS, PD3.0, PD2.0, QC3.0, QC2.0, DCP, SDP, CDP, UFCS.
Nothing UK Phone (4a) 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 (4a) 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.
Rectangular diagonal; rounded corners reduce viewable area.
HONOR UK 400 Smart complete technical specificationsCheck the exact configuration and source conditions for your use.
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.
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: Nano-SIM (4FF), dual SIM; eSIM: yes (excluding India); 2G GSM: 850/900/1800/1900; 3G UMTS (WCDMA): B1, 2, 4, 5, 6, 8, 19; 4G LTE bands: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 38, 40, 41, 42, 48, 66, 71; 5G NR bands: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78; Wi-Fi 6 (802.11 a/b/g/n/ac/ax), 2.4/5 GHz, 2x2 MIMO, TWT, MU-MIMO, OFDMA; Bluetooth 5.4; Location: GPS (L1), GLONASS (G1), BDS (B1I), Galileo (E1), QZSS (L1); NFC. Check carrier support if you plan to use it outside the UK.
Nothing UK Phone (4a) 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 (4a) 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 (2x2 OCL PDAF) and periscope (PDAF) cameras; not stated for the ultra-wide.
Nothing UK Phone (4a) 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 (4a) 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 (4a) 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.
No source recorded for this side.
Not verified for this exact model.
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.
No 0–50% time is published. The page claims only "a day's power in under 30 mins" with 50 W charging, which is not converted into a percentage time.
Nothing UK Phone (4a) 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.
No source recorded for this side.
Not verified for this exact model.
No 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.
No source recorded for this side.
Security-patch term from first availability. Android version-upgrade duration is stated separately.
Nothing UK Phone (4a) 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.
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 dot-matrix display of 137 mini-LEDs for alerts, a clock, a timer and a selfie mirror. Size and brightness claims are relative to earlier models.
Nothing UK Phone (4a) 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.
No source recorded for this side.
Not verified for this exact model.
No source recorded for this side.
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.
No source recorded for this side.
Not verified for this exact model.
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.
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.
Not verified for this exact model.
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
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 (4a) 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 (4a) 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
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.
Evidence 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.
Rear and front video are listed up to 1080p; 8K recording is not mentioned.
HONOR UK 400 Smart complete technical specificationsVideo is listed up to 4K Ultra XDR 30 fps; 8K recording is not mentioned.
Nothing UK Phone (4a) 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 (4a) 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.
3 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
128 GB · checked 28 Sept 2026
Manufacturer peak brightness; not sustained full-screen brightness or an independent measurement.
NothingNot published
Not published
Security-patch term from first availability. Android version-upgrade duration is stated separately.
NothingNot published
Not published
Not published
Not published
The verified differences and their sources, in one link.