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Xiaomi Xiaomi 12 vs Xiaomi Xiaomi 15

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

Better figure, where one is clearly better

XiaomiXiaomi 12XiaomiXiaomi 15
Overview
ReleasedDecember 2021October 2024
Display
Screen size6.28″6.36″
Resolution2400 × 10802670 × 1200
Sharpness419 pixels per inch460 pixels per inch
PanelOLEDOLED
Refresh rate120 Hz120 Hz
Peak brightness–3,200 nits
Display typeAMOLED DotDisplay; 20:9 aspect ratioCrystalRes AMOLED with 1–120 Hz adaptive refresh, 68 billion colours and DCI-P3
Pixel density–460 ppi
Brightness detail–3,200 nits peak covering 25% of the screen
Always-on display–Always-active Display with adaptive brightness and refresh as low as 1 Hz; weather display supported
Screen protectionCorning Gorilla Glass VictusXiaomi Shield Glass
Display featuresUp to 480 Hz touch sampling; over 68 billion colours; DCI-P3 gamut; JNCD approximately 0.61, Delta E approximately 0.59; 5,000,000:1 contrast; HDR10+, Dolby Vision, 360° ambient light sensing and DisplayMate A+DC dimming, 300 Hz touch sampling, Original Colour PRO, Pro HDR, wet touch, HDR10, HDR10+, Dolby Vision and TÜV low-blue-light, flicker-free and circadian-friendly certifications
Performance
ChipQualcomm Snapdragon 8 Gen 1Qualcomm Snapdragon 8 Elite
Memory8 GB – 12 GB12 GB
Storage128 GB, 256 GB256 GB, 512 GB
CPU4 nm process; one Cortex-X2-based core at 3.0 GHz, three Cortex-A710-based cores at 2.5 GHz and four Cortex-A510-based cores at 1.8 GHz3 nm Qualcomm Oryon CPU; two prime cores up to 4.32 GHz and six performance cores up to 3.53 GHz
GPUQualcomm Adreno; model number not published on the maker sheetQualcomm Adreno GPU; maker gives no numeric suffix
AI engineSeventh-generation Qualcomm AI EngineQualcomm AI engine
Storage typeLPDDR5 RAM and UFS 3.1 storage; 12 GB/256 GB configuration is for other markets, with UK configurations using 8 GB RAMLPDDR5X RAM at 8,533 Mbps and UFS 4.0 storage; UK 12 GB/256 GB or 12 GB/512 GB
CoolingLiquidCool Technology with vapour chamber, graphite sheets and boron nitride filmXiaomi Wing-type IceLoop system
Cameras
Main camera50 MP50 MP
Ultra wide camera13 MP50 MP
Telephoto cameraNone50 MP
Optical zoomNone2.6×
Front camera32 MP32 MP
Main camera50 MP, 1/1.56-inch sensor, ƒ/1.88, OIS; 1 µm pixels and 4-in-1 2 µm Super PixelsLeica Summilux, Light Fusion 900, 50 MP, f/1.62, OIS, 23 mm equivalent focal length, 1/1.31-inch sensor, seven-element lens and 4-in-1 binning to 2.4 µm pixels
Ultra wide camera13 MP, ƒ/2.4, 123° field of viewLeica 50 MP, f/2.2, 14 mm equivalent focal length, 115° field of view and six-element lens
Telephoto camera–Leica floating 50 MP, f/2.0, OIS, 60 mm equivalent focal length and six-element lens; focusing from 10 cm to infinity
Front camera32 MP, ƒ/2.4532 MP, f/2.0, 21 mm equivalent focal length and 90° field of view
Zoom–2.6× optical telephoto identified by Tech Advisor and Expert Reviews; maker lists 23 mm main and 60 mm telephoto and up to 60× digital zoom
Video recording8K at 24 fps; 4K at 30 or 60 fps; 1080p at 30 or 60 fps; 720p at 30 fps; slow motion at 120, 240, 480, 960 or 1,920 fps8K at 24/30 fps; 4K at 24/30/60 fps; Full HD at 30/60 fps; HD at 30 fps; Dolby Vision HDR and 10-bit log; slow motion HD at 120/240/480/960/1,920 fps or Full HD at 120/240/960 fps
Front video1080p at 30 or 60 fps; 720p at 30 fps; 720p slow motion at 120 fps4K or Full HD at 30/60 fps, HD at 30 fps; HDR10+ video, teleprompter and time-lapse selfie
Camera features5 MP telemacro, ƒ/2.4, autofocus from 3–7 cm; ProFocus motion/eye tracking and motion capture, night modes, photo clones, timed burst, document mode, HDR and Google Lens; AI cinema, Ultra Night Video, Vlog, dual video and video logLeica Authentic and Vibrant styles, Leica filters, ProFocus motion and eye tracking, Lightning Burst, Dynamic Shots, master portraits, night and 50 MP modes on all rear cameras, macro, Fastshot, Supermoon, RAW/DNG/HEIF/JPEG, Movie mode, ShootSteady, Dual Video and Ultra Night Video
Battery and charging
Battery4,500 mAh5,240 mAh
Wired chargingUp to 67 WUp to 90 W
Wireless chargingUp to 50 WUp to 50 W
Battery life detail4,500 mAh typical; Xiaomi AdaptiveCharge5,240 mAh typical UK Xiaomi Surge Battery; maker laboratory claim of up to 25 hours video playback and approximately 80% capacity after 1,600 cycles; Surge P3 charging and G1 battery-management chips
Wired charging67 W charger included90 W HyperCharge; QC3+, QC3.0, QC2.0, PD3.0, PD2.0 and MI FC 2.0; separate Xiaomi 90 W adaptor recommended
Wireless charging–50 W wireless HyperCharge with compatible Xiaomi wireless charging set sold separately
Charges other devices10 W reverse wireless charging–
Design
TypeStandardStandard
Weight180 g191 g
Thickness8.16 mm8.08 mm
Height × width152.7 × 69.9 mm152.3 × 71.2 mm
Water and dust resistance–IP68
Materials–6M42 high-strength aluminium frame and glass back; Liquid Silver uses heat-moulded glass with wave texture and a plated aluminium frame
ColoursGrey, Blue and PurpleBlack, White, Green and Liquid Silver; main dimensions and weight are for Black/White/Green, while Liquid Silver is 8.48 mm thick and weighs 192 g
Water resistance detail–IP68; maker test in static freshwater at 1.5 m for 30 minutes with temperature difference no greater than 5 K; resistance can decline with wear
BiometricsIn-screen fingerprint sensor and AI face unlockUltrasonic in-display fingerprint reader and AI Face Unlock
SensorsProximity, ambient light, accelerometer, gyroscope, compass, X-axis linear motor, IR blaster and flicker sensorProximity, ambient light, accelerometer, gyroscope, electronic compass, IR blaster, laser-focus sensor, barometer and flicker sensor; X-axis linear vibration motor
SpeakersStereo speakers; SOUND BY Harman Kardon and Dolby AtmosStereo speakers, Dolby Atmos, Hi-Res Audio and Hi-Res Wireless Audio
Microphones–Four-microphone array with surround sound recording
Software
Operating systemAndroidAndroid
Software at launchMIUI 13 based on Android 12Xiaomi HyperOS 2; Android 15 confirmed by Tech Advisor and Expert Reviews
Software updates–Four Android version upgrades and six years of security updates reported at launch by Tech Advisor and Expert Reviews
AI features–Regional HyperAI writing, speech recognition, interpreter, search, dynamic wallpapers, creativity and image-editing tools, Google Gemini and Circle to Search; applicable features require internet access and updates
In the boxPhone, adapter, USB-C cable, SIM tool, protective case, quick start guide and warranty cardPhone, USB-C cable, SIM tool, protective case, safety information, quick-start guide, warranty card and desiccant; standard UK box excludes adaptor
Connectivity
Mobile network5G NSA/SA n1/3/5/7/8/20/28/38/40/41/66/77/78/79; LTE FDD B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/32/66 and TDD B38/39/40/41/42/48; WCDMA B1/2/4/5/6/8/19; GSM 850/900/1800/1900 MHz; 4×4 MIMO5G SA/NSA, LTE, UMTS and GSM; 4×4 MIMO; Xiaomi Surge T1S tuner and antenna array
SIMDual SIM; availability varies by regionDual nano-SIM, nano-SIM plus eSIM or dual eSIM; eSIM depends on region and carrier
Wi-FiWi-Fi 6; Wi-Fi 6E availability varies by region and may require an OTA update; availability depends on the local networkWi-Fi 7/6E/6 capability depends on region and network; 2×2 MIMO, 8×8 sounding for MU-MIMO, Wi-Fi Direct and Miracast
BluetoothBluetooth 5.2Bluetooth 6.0, Dual-Bluetooth; SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LHDC 5.0 and LC3
NFCSupported; Google Pay availability varies by marketSupported
USBUSB-CUSB-C, USB 3.2 Gen 1
PositioningGPS L1/L5, Galileo E1/E5a, GLONASS G1, BeiDou and NavIC L5; A-GNSS, compass and network positioningGPS L1/L5, Galileo E1/E5a, GLONASS G1, BeiDou, QZSS L1/L5 and NavIC L5; assisted positioning

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