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OPPO Find X8 vs Xiaomi Xiaomi 15

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

Better figure, where one is clearly better

OPPOFind X8XiaomiXiaomi 15
Overview
ReleasedOctober 2024October 2024
Display
Screen size6.59″6.36″
Resolution2760 × 12562670 × 1200
Sharpness460 pixels per inch460 pixels per inch
PanelOLEDOLED
Refresh rate120 Hz120 Hz
Peak brightness4,500 nits3,200 nits
Display typeFlexible AMOLED; LTPS technology identified by TechRadarCrystalRes AMOLED with 1–120 Hz adaptive refresh, 68 billion colours and DCI-P3
Pixel density460 ppi460 ppi
Brightness detail800 nits typical, 1,600 nits HBM and 4,500 nits peak at 1% APL3,200 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 7iXiaomi Shield Glass
Display features10-bit colour; 100% DCI-P3 in nature, pro and vivid modes; 94.3% screen ratio; touch sampling maximum 240 Hz, default 120 Hz; ProXDR and Ultra HDR; Splash Touch; PWM dimming at 3,840 Hz below 70 nits; DC dimming; 1.45 mm symmetrical bezelsDC 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
ChipMediaTek Dimensity 9400Qualcomm Snapdragon 8 Elite
Memory12 GB – 16 GB12 GB
Storage256 GB, 512 GB256 GB, 512 GB
CPUEight-core Dimensity 9400; TSMC second-generation 3 nm process and second-generation all-big-core design3 nm Qualcomm Oryon CPU; two prime cores up to 4.32 GHz and six performance cores up to 3.53 GHz
GPUArm Immortalis G925 MC12Qualcomm Adreno GPU; maker gives no numeric suffix
AI engine–Qualcomm AI engine
Storage typeIndia/global CPH2651 factory pairs 12 GB/256 GB and 16 GB/512 GB; LPDDR5X and UFS 4.0. Taiwan offers 12 GB/256 GB; Chinese PKB110 configurations differLPDDR5X RAM at 8,533 Mbps and UFS 4.0 storage; UK 12 GB/256 GB or 12 GB/512 GB
CoolingVapour chamber, graphite layer and thermally conductive gelXiaomi Wing-type IceLoop system
Cameras
Main camera50 MP50 MP
Ultra wide camera50 MP50 MP
Telephoto camera50 MP50 MP
Optical zoom3×2.6×
Front camera32 MP32 MP
Main camera50 MP, 1/1.56-inch sensor, f/1.8, 24 mm equivalent, 84° field of view, six-element lens, autofocus and two-axis OISLeica 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 camera50 MP, 1/2.75-inch sensor, f/2.0, 15 mm equivalent, 120° field of view, six-element lens and autofocusLeica 50 MP, f/2.2, 14 mm equivalent focal length, 115° field of view and six-element lens
Telephoto camera50 MP triple-prism periscope, Sony LYT600 1/1.95-inch sensor, f/2.6, 73 mm equivalent, 33° field of view, 1G3P lens, autofocus and two-axis OISLeica 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, f/2.4, 90° field of view and five-element lens32 MP, f/2.0, 21 mm equivalent focal length and 90° field of view
Zoom3× optical and up to 120× digital photos; AI enhancement at 10–60× and optional pixel reconstruction at 60–120×; video up to 3× optical and 18× digital2.6× 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 recordingRear 4K30/60 and 1080p30/60 with EIS/OIS; Dolby Vision HDR 4K60 across all cameras; slow motion 1080p240 or 720p240/480; cinematic 4K30; time-lapse 4K/1080p30; dual-view 1080p308K 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 video4K30/60, 1080p30/60 or 720p30; EIS/OIS listed by India maker sheet; Dolby Vision HDR 4K604K or Full HD at 30/60 fps, HD at 30 fps; HDR10+ video, teleprompter and time-lapse selfie
Camera featuresHasselblad portrait, Master and XPAN modes; Hi-Res, night, long exposure, document scanning, Livephoto and Lightning Snap up to seven frames per secondLeica 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
Battery5,630 mAh5,240 mAh
Video playback (maker's claim)Up to 24 hours–
Wired chargingUp to 80 WUp to 90 W
Wireless chargingUp to 50 WUp to 50 W
Battery life detailSilicon-carbon battery; 5,630 mAh/21.79 Wh typical and 5,490 mAh/21.25 Wh rated. Maker claims up to 24 hours streaming from its laboratory; test results vary. Separate 6.5-hour recording claim is for 1080p30 Dolby Vision at room temperature, flight mode, GPS off and 150-nit brightness, not playback5,240 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 charging80 W SUPERVOOC; SUPERVOOC 2.0, SUPERVOOC and VOOC 4.0; PD 9 V/1.3 A; PPS 11 V/5 A EU or 11 V/3 A elsewhere. Maximum output depends on regional input voltage90 W HyperCharge; QC3+, QC3.0, QC2.0, PD3.0, PD2.0 and MI FC 2.0; separate Xiaomi 90 W adaptor recommended
Wireless charging50 W AIRVOOC; magnetic mounting requires compatible OPPO Mag case accessory50 W wireless HyperCharge with compatible Xiaomi wireless charging set sold separately
Charges other devices10 W reverse wireless charging reported by TechRadar and Tom's Guide–
Design
TypeStandardStandard
Weight193 g191 g
Thickness7.85 mm8.08 mm
Height × width157.35 × 74.33 mm152.3 × 71.2 mm
Water and dust resistanceIP68IP68
MaterialsGlass and aluminium construction; flat display and sides6M42 high-strength aluminium frame and glass back; Liquid Silver uses heat-moulded glass with wave texture and a plated aluminium frame
ColoursSpace Black and Star Grey on India sheet; global overview also shows Shell Pink, availability varies by market. India sheet rounds dimensions to 15.74×7.43×0.79 cm; Taiwan CPH2651 sheet gives 157.35×74.33×7.85 mmBlack, 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
ButtonsThree-stage alert slider selects silent, vibration and ringing; volume and power buttons–
Water resistance detailIP68 and IP69; immersion at 1.5 m for 30 minutes, and 80±5°C water jets at 15±1 L/min for two minutes across four angles; resistance decreases with wearIP68; 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
BiometricsOptical fingerprint reader and face recognitionUltrasonic in-display fingerprint reader and AI Face Unlock
SensorsProximity, ambient light, colour temperature, compass, accelerometer, gyroscope, optical fingerprint, Hall, laser focusing, spectral and infrared remote controlProximity, ambient light, accelerometer, gyroscope, electronic compass, IR blaster, laser-focus sensor, barometer and flicker sensor; X-axis linear vibration motor
Speakers–Stereo speakers, Dolby Atmos, Hi-Res Audio and Hi-Res Wireless Audio
MicrophonesFour-microphone array for video recordingFour-microphone array with surround sound recording
Software
Operating systemAndroidAndroid
Software at launchAndroid 15 with ColorOS 15.0Xiaomi HyperOS 2; Android 15 confirmed by Tech Advisor and Expert Reviews
Software updatesSix years of security updates promised by maker global release; five years of OS updates reported by TechRadar and Tom's GuideFour Android version upgrades and six years of security updates reported at launch by Tech Advisor and Expert Reviews
AI featuresAI eraser, clarity, unblur and reflection removal; Notes and document assistance, recording transcription, Circle to Search and Gemini; Touch to Share with iOS/iPadOS, with NFC initiation announced for a later update at launchRegional 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 boxIndia phone, charger, USB cable, SIM tool, quick guide, safety guide and protective case; market contents vary. Maker announced global availability on 21 November 2024; earlier China first-sale month October is from IT Home, not a UK sale claimPhone, USB-C cable, SIM tool, protective case, safety information, quick-start guide, warranty card and desiccant; standard UK box excludes adaptor
Connectivity
Mobile networkGSM 850/900/1800/1900; WCDMA B1/2/4/5/6/8/19; LTE FDD B1/2/3/4/5/7/8/12/17/18/19/20/26/28/66 and TDD B38/39/40/41/42; 5G n1/2/3/5/7/8/12/20/28/38/40/41/66/77/785G SA/NSA, LTE, UMTS and GSM; 4×4 MIMO; Xiaomi Surge T1S tuner and antenna array
SIMTwo nano-SIM/nano-USIM slots and eSIM support on maker India CPH2651 sheetDual nano-SIM, nano-SIM plus eSIM or dual eSIM; eSIM depends on region and carrier
Wi-FiIndia sheet lists Wi-Fi 6/5 and 802.11a/b/g/n; simultaneous dual-band, 2×2 MIMO, MU-MIMO, Wi-Fi Display and tetheringWi-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 5.4 and BLE; SBC, AAC, aptX, aptX HD, LDAC and LHDC 5.0; LHDC requires compatible OPPO Enco X or OnePlus Buds ProBluetooth 6.0, Dual-Bluetooth; SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LHDC 5.0 and LC3
NFCRead/write 13.56 MHz cards, NFC-SIM in SIM1, HCE payments and eSE; HCE access-card functions limited to listed regions; NFC availability depends on marketSupported
USBUSB-C and OTG; digital USB-C headphones supported, analogue USB-C headphones unsupportedUSB-C, USB 3.2 Gen 1
PositioningGPS L1/L5, GLONASS G1, BeiDou B1I/B1C/B2a/B2b, Galileo E1/E5a/E5b, QZSS L1/L5 and NavIC L5; A-GNSS, Wi-Fi and cellular positioningGPS L1/L5, Galileo E1/E5a, GLONASS G1, BeiDou, QZSS L1/L5 and NavIC L5; assisted positioning

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