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Nothing Phone (2a) vs Xiaomi REDMI Note 15 5G

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

NothingPhone (2a)XiaomiREDMI Note 15 5G
Overview
ReleasedMarch 2024January 2026
Display
Screen size6.7″6.77″
Resolution2412 × 10842392 × 1080
Sharpness395 pixels per inch388 pixels per inch
PanelOLEDOLED
Refresh rate120 Hz120 Hz
Peak brightness1,300 nits3,200 nits
Display typeFlexible AMOLED; UK maker sheet lists 1,000,000:1 contrast, while the retained Singapore sheet lists 5,000,000:1; reason unpublishedAMOLED, FHD+, 12-bit colour, DCI-P3 and 8,000,000:1 contrast ratio; maker laboratory screen-to-body ratio 92%
Pixel density394 ppi; maker specifies 2412 × 1084 resolution, while Android Central and TechRadar's prose use 2412 × 1080–
Brightness detail700 nits typical, 1,100 nits outdoor and 1,300 nits peak3,200 nits peak, 800 nits typical and 16,000-level brightness adjustment
Always-on display30 Hz always-on display–
Screen protectionCorning Gorilla Glass 5Maker high-durability front glass; laboratory claim of 1.7 m front drop onto marble under specified conditions
Display featuresHDR10+, 10-bit colour, 100% DCI-P3, adaptive 30–120 Hz refresh, 240 Hz touch sampling and 2,160 Hz PWM dimming as specified by the maker; Android Central measures 1,920 Hz PWM below 50% brightness3,840 Hz PWM dimming, 240 Hz touch sampling and 2,560 Hz instantaneous sampling in Game Mode; sunlight display, reading mode and Wet Touch 2.0; TÜV low-blue-light, circadian-friendly and flicker-free certifications
Performance
ChipMediaTek Dimensity 7200 ProQualcomm Snapdragon 6 Gen 3
Memory8 GB – 12 GB8 GB
Storage128 GB, 256 GB256 GB
CPUEight-core Dimensity 7200 Pro at up to 2.8 GHz; second-generation 4 nm TSMC N4P process; Android Central identifies two Cortex-A715 at 2.8 GHz and six Cortex-A510 at 2.0 GHz4 nm, octa-core up to 2.4 GHz
GPUMali-G610, identified by Android CentralQualcomm Adreno; UK maker specification does not publish numeric designation
Storage typeUK 8/128 and 12/256 GB; 8/256 GB sold in India only at launch; RAM Booster uses storage and is not physical RAMLPDDR4X and UFS 2.2; UK 8 GB/256 GB; microSD expansion up to 1 TB
Cooling3,200 mm² vapour chamber, 12,000 mm² cooling area and 0.11 mm graphite layer–
Cameras
Main camera50 MP108 MP
Ultra wide camera50 MP8 MP
Telephoto cameraNoneNone
Optical zoomNoneNone
Front camera32 MP20 MP
Main camera50 MP, f/1.88, 1/1.56-inch sensor, autofocus, OIS and EIS; Android Central identifies Samsung GN9108 MP, f/1.7, six-element lens, OIS confirmed by maker overview and 1/1.67-inch sensor; 0.64 µm pixels, 9-in-1 binning to 1.92 µm
Ultra wide camera50 MP, f/2.2, 1/2.76-inch sensor and 114° field of view; Android Central identifies Samsung JN18 MP, f/2.2
Front camera32 MP, f/2.2 and 1/2.74-inch sensor; Android Central identifies Sony IMX61520 MP, f/2.2, four-element lens and 1/4-inch sensor
ZoomNo optical telephoto; TechAdvisor reports 2× in-app digital zoom and up to 10× digital zoomNo dedicated optical telephoto; maker offers 3× optical-level sensor crop and equivalent 24/28/35/72 mm perspectives
Video recordingRear 4K at 30 fps, 1080p at 60 fps and 1080p slow motion at 120 fps; Action Mode4K, Full HD or HD at 30 fps
Front video1080p at 60 fpsFull HD or HD at 30 fps
Camera featuresTrueLens Engine with Google co-developed Ultra XDR, Motion Capture, Night Mode and Portrait Optimiser; Imagiq 765 14-bit image signal processorUltra HD, dynamic shots and regional AI erase, beautify and reflection removal; OTA and app-version restrictions apply
Battery and charging
Battery5,000 mAh5,520 mAh
Video playback (maker's claim)–Up to 21 hours
Wired chargingUp to 45 WUp to 45 W
Wireless chargingNoneNone
Battery life detail5,000 mAh; maker states over 90% capacity retained after 1,000 charging cycles5,520 mAh typical silicon-carbon battery; maker laboratory claims up to 1.58 days use, 21 hours video playback and 10 hours recording
Wired charging45 W; retained specification states 50% in 23 minutes and full charge in 59 minutes; launch release gives 50% in 20 minutes under its test conditions45 W turbo charging and up to 18 W wired reverse charging; maker laboratory claim of 50% charge in 25 minutes; separate PD-compatible 45 W or Xiaomi 45 W adaptor recommended
Wireless chargingNo wireless charging, confirmed by the full reviewsNo wireless or reverse wireless charging, confirmed by exact-model Xiaomi UK FAQ
Design
TypeStandardStandard
Weight190 g178 g
Thickness8.55 mm7.35 mm
Height × width161.74 × 76.32 mm164 × 75.42 mm
Water and dust resistanceIP54IP65
MaterialsPlastic rear and outer sides, confirmed by the reviews; maker states a 100% recycled aluminium internal mid-frame–
ColoursBlack, white and milk at launch; later Special Edition adds red, yellow and blue accentsBlack, Glacier Blue and Mist Purple; Mist Purple thickness 7.40 mm, Black/Glacier Blue 7.35 mm
Water resistance detail–UK maker IP65 splash and dust resistance; protection can decline with wear; liquid damage outside test conditions excluded from warranty
ButtonsPower key on right and volume on left, confirmed by TechAdvisor; three rear Glyph lights for notifications, timer, progress tracking, volume, music and fill lighting–
BiometricsIn-display optical fingerprint sensor and camera-based face unlockIn-screen fingerprint reader and AI Face Unlock
Sensors–Virtual proximity, ambient light, accelerometer, electronic compass, IR blaster and gyroscope
SpeakersDual stereo speakersDual speakers, Dolby Atmos and Hi-Res; 300% volume-boost mode uses 17 levels versus 15 and depends on scenario/software
Software
Operating systemAndroidAndroid
Software at launchNothing OS 2.5 based on Android 14; retained UK page later describes Nothing OS 3.0 and Android 15Xiaomi HyperOS 2; Android 15 confirmed by Tech Advisor and Android Central
Software updatesOriginal maker promise of three years of Android updates and four years of security updatesMaker promises six years of security updates; UK product pages do not specify major Android upgrade count
AI featuresLaunch Wallpaper Studio; later maker page lists ChatGPT widgets and integration through compatible Nothing earbudsGoogle Gemini with regional Xiaomi app integration; applicable features require setup and internet
In the boxPhone, USB-C cable, pre-applied screen protector, SIM ejector, safety information and warranty card; no charging adapterPhone, USB-C cable, SIM tool, protective case, quick-start guide and warranty card; standard UK box excludes adaptor
Connectivity
Mobile networkGigabit LTE and dual-mode SA/NSA 5G with 4×4 MIMO; maker lists 5G n1/n3/n5/n7/n8/n20/n28/n38/n40/n41/n66/n77/n78, subject to operator and regional support5G n1/2/3/5/7/8/12/20/26/28/38/40/41/48/66/77/78; LTE FDD 1/2/3/4/5/7/8/12/13/17/18/19/20/26/28/32/66 and TDD 38/40/41/42/48; WCDMA 1/2/4/5/6/8/19 and quad-band GSM; region and operator support varies
SIMDual nano-SIM; no microSD expansion, confirmed by TechAdvisorNano-SIM plus hybrid second nano-SIM/microSD; dual standby
Wi-FiWi-Fi 6 (802.11 a/b/g/n/ac/ax), 2.4/5 GHz, 2×2 MIMO, MU-MIMO, Wi-Fi Direct and Advanced HotspotWi-Fi 5, 802.11a/b/g/n/ac, 2.4/5 GHz and Wi-Fi Direct
BluetoothBluetooth 5.3, A2DP and BLEBluetooth 5.1
NFCNFC with Google Pay supportSupported; regional availability varies
USBUSB-C; no headphone socket, confirmed by Android CentralUSB-C, USB 2.0 and OTG confirmed by UK maker FAQ; no DisplayPort Alternate Mode
PositioningGPS L1, GLONASS G1, BeiDou B1I, Galileo E1 and QZSS L1GPS L1, GLONASS G1, BeiDou B1I/B1C and Galileo E1

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