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Samsung Galaxy S25 Ultra vs Xiaomi Xiaomi 17 Pro Max

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

Better figure, where one is clearly better

SamsungGalaxy S25 UltraXiaomiXiaomi 17 Pro Max
Overview
ReleasedFebruary 2025September 2025
Display
Screen size6.9″6.9″
Resolution3120 × 14402608 × 1200
Sharpness498 pixels per inch416 pixels per inch
PanelLTPO OLEDOLED
Refresh rate120 Hz120 Hz
Peak brightness2,600 nits3,500 nits
Display typeDynamic AMOLED 2X, Quad HD+, 16M colours; Super Smooth 120 Hz adaptive refresh rate (1–120 Hz); 6.9 inches as a full rectangle, 6.8 inches allowing for the rounded cornersAMOLED; rear 2.9-inch AMOLED screen, 976 × 596, up to 120 Hz
Brightness detail–Multi-scenario peak 3,500 nits on both screens; minimum 1 nit
Always-on display–Full-screen always-on display
Screen protectionCorning Gorilla Armor 2 (glass-ceramic with an anti-reflective surface treatment)Xiaomi Dragon Crystal Glass 3.0 on the main screen; Dragon Crystal Glass on the rear screen
Display featuresVision booster; Adaptive colour tone; ProScaler image upscalingP3 colour gamut; full-brightness single-pulse DC dimming; main-screen HDR10+, HDR Vivid and Dolby Vision; wet-hand touch; up to 300 Hz main-screen and 120 Hz rear-screen touch sampling
Performance
ChipSnapdragon 8 Elite for GalaxySnapdragon 8 Elite Gen 5
Memory12 GB12 GB – 16 GB
Storage256 GB, 512 GB, 1 TB512 GB, 1 TB
CPUOcta-core (4.47 GHz, 3.5 GHz); 3 nmThird-generation Qualcomm Oryon CPU up to 4.60 GHz; third-generation TSMC 3 nm process; Notebookcheck confirms the English Snapdragon 8 Elite Gen 5 name
GPUReal-time ray tracing; Vulkan optimisationAdreno GPU; maker does not publish a model number
AI engine–Qualcomm AI Engine
Storage type–LPDDR5X RAM and UFS 4.1 storage; maker explicitly pairs 16 GB/1 TB; 12/512 GB and 16/512 GB configurations confirmed by Notebookcheck
CoolingLarger vapour chamber with a new thermal interface material (TIM)–
Cameras
Main camera200 MP50 MP
Ultra wide camera50 MP50 MP
Telephoto camera50 MP50 MP
Optical zoom5×5×
Front camera12 MP50 MP
Main camera200 MP wide, F1.7, 85° field of view, OIS, autofocus; Adaptive Pixel sensor50 MP Light Hunter 950L, ƒ/1.67, 23 mm equivalent, OIS, QPD autofocus; 4-in-1 2.44 µm pixels; 1G+6P lens
Ultra wide camera50 MP, F1.9, 120° field of view; macro shots50 MP, ƒ/2.4, 17 mm equivalent, 102° field of view, autofocus; 5 cm macro
Telephoto camera50 MP, F3.4, 22° field of view, OIS, 5x optical zoom50 MP periscope, 1/2-inch sensor, ƒ/2.6, OIS; 30 cm telephoto macro
Second telephoto camera10 MP, F2.4, 36° field of view, OIS, 3x optical zoom–
Front camera12 MP, F2.2, 80° field of view, autofocus50 MP, ƒ/2.2, 90° field of view, autofocus
Zoom3x and 5x optical zoom; 2x and 10x optical-quality zoom (Adaptive Pixel sensor); Space Zoom up to 100x digital–
Video recordingUp to 8K (7680 × 4320) at 30 fps; 10-bit HDR recording by default; Log video; slow motion at 240 fps (FHD) and 120 fps (FHD and UHD)8K at 30 fps; 4K at 30, 60 or 120 fps; 1080p at 30 or 60 fps; 720p at 30 fps; slow motion 720p at 120, 240, 480, 960 or 1,920 fps and 1080p at 120, 240 or 960 fps
Front video–4K and 1080p at 30 or 60 fps; 720p at 30 fps
Camera featuresProVisual Engine; Nightography; Audio Eraser; Expert RAW; Filters made from your own photosLeica Authentic and Vibrant looks; rear-screen selfies and preview; dynamic photos, Dolby Vision, motion capture, subject and audio tracking, portrait, night, Pro, time-lapse, panorama and document modes
Battery and charging
Battery5,000 mAh7,500 mAh
Video playback (maker's claim)Up to 31 hours–
Wired chargingUp to 45 WUp to 100 W
Wireless chargingUp to 15 WUp to 50 W
Battery life detail5,000 mAh typical, 4,855 mAh rated; at least 2,000 charge cycles; EU energy class B, 44 h 54 min per charge cycle7,500 mAh typical; 7,330 mAh minimum; built-in non-removable battery
Wired chargingUp to 65% in around 30 minutes with a 45 W adapter (sold separately); compatible with QC2.0 and AFC/PDQC3+, QC3.0, QC2.0, PD3.0, PD2.0 and 100 W PPS supported
Wireless chargingFast Wireless Charging 2.0 (WPC Qi); Qi certified at 15 W (Extended Power Profile)Xiaomi wireless charging
Charges other devicesWireless PowerShare22.5 W wired and wireless reverse charging
Connectivity
Satellite messagingYes–
Mobile network5G Sub6 (FDD, TDD, SDL); 4G LTE (FDD, TDD); 3G WCDMA; 2G GSM5G n1/2/3/5/7/8/12/13/18/20/25/26/28/38/40/41/48/66/70/71/77/78/79/80/81/83/84/89; LTE FDD B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28/66/71 and TDD B34/38/39/40/41/42/48; 4×4 MIMO; China carrier and software restrictions apply
SIMTwo nano-SIMs, nano-SIM and eSIM, or dual eSIMDual nano-SIM; dual-active operation depends on SA bands and carrier support
Wi-FiWi-Fi 7 (802.11a/b/g/n/ac/ax/be), 2.4, 5 and 6 GHz, EHT320, MIMO, 4096-QAMWi-Fi 7, enhanced Wi-Fi 6, Wi-Fi 5, Wi-Fi 4 and 802.11a/b/g; 2.4 and 5 GHz; 2×2 MIMO, MLO, 8×8 sounding, Wi-Fi Direct and Miracast
BluetoothBluetooth 5.4Bluetooth 5.4 and dual Bluetooth per current maker sheet; SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LHDC 5.0, LC3 and MIHC; Notebookcheck instead lists Bluetooth 6.0
Ultra WidebandYes–
NFCYesChinese Wallet transport, access-card and payment functions; availability depends on location and provider
Satellite featuresWorks with O2 Satellite in the UK (texts, supported apps, maps and location sharing where O2 has no signal; not emergency calls)–
USBUSB Type-C, USB 3.2 Gen 1USB-C, USB 3.2 Gen 1; a separate USB 3 cable is required because the supplied cable does not support USB 3 transfers
PositioningGPS, Glonass, Beidou, Galileo, QZSSGPS L1/L5, BeiDou B1I/B1C/B2a, Galileo E1/E5a, GLONASS G1, QZSS L1/L5, NavIC L5; assisted network positioning
Design
TypeStandardStandard
Weight218 g219 g
Thickness8.2 mm8 mm
Height × width162.8 × 77.6 mm162.9 × 77.6 mm
Water and dust resistanceIP68–
StylusYes–
MaterialsTitanium frame (not the volume and side keys)–
ColoursTitanium Silverblue, Titanium Black, Titanium Grey, Titanium Whitesilver; Titanium Jetblack, Titanium Jadegreen and Titanium Pinkgold (Samsung.com only)Black, White, Cool Smoky Purple and Forest Green; China-market names
Water resistance detailIP68, tested for submersion in up to 1.5 m of fresh water for up to 30 minutes; not advised for beach or pool use–
BiometricsFingerprint sensor3D ultrasonic fingerprint sensor
SensorsAccelerometer, barometer, fingerprint sensor, gyro sensor, geomagnetic sensor, Hall sensor, light sensor, proximity sensorProximity, under-screen and rear ambient light/colour temperature, accelerometer, gyroscope, compass, X-axis linear motor, IR blaster, flicker, laser autofocus, barometer and Hall sensors
SpeakersStereo speakersStereo dual speakers; four microphones; Dolby Atmos, spatial audio and Hi-Res wired/wireless audio; USB-C digital headphones
Software
Operating systemAndroidAndroid
Software at launchOne UI 7 (Android 15)Xiaomi HyperOS 3; Android 16 identified by Notebookcheck; China variant
In the box–Phone, power adapter, USB-C cable, case, pre-applied screen protector, SIM tool and documentation; contents can vary with sales bundle
Software updatesSeven generations of OS upgrades and seven years of security updates; security updates until 31 January 2032 (UK)–
AI featuresGalaxy AI, including Now Brief, Now Bar and Audio Eraser; Circle to Search with Google (finger or S Pen); Gemini on the side button–

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