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Samsung Galaxy S20 Ultra vs Samsung Galaxy S25

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

Better figure, where one is clearly better

SamsungGalaxy S20 UltraSamsungGalaxy S25
Overview
ReleasedMarch 2020February 2025
Display
Screen size6.9″6.2″
Resolution3200 × 14402340 × 1080
Sharpness509 pixels per inch416 pixels per inch
PanelOLEDLTPO OLED
Refresh rate120 Hz120 Hz
Peak brightness–2,600 nits
Display typeQuad HD+ Dynamic AMOLED 2X Infinity-O Display (3,200 × 1,440), HDR10+ certified; 120 Hz supported at up to FHD+ (60 Hz by default); 6.9 inches as a full rectangle, 6.7 inches with rounded cornersDynamic AMOLED 2X, FHD+, 16M colours; Super Smooth 120 Hz adaptive refresh rate (1–120 Hz); 6.2 inches as a full rectangle, 6.0 inches allowing for the rounded corners
Pixel density511 ppi (Samsung)–
Brightness detailUp to 1,200 nits peak (Samsung)–
Screen protectionCorning Gorilla Glass 6 front and back (Corning)Corning Gorilla Glass Victus 2
Display features–Vision booster; Adaptive colour tone
Performance
ChipExynos 990Snapdragon 8 Elite for Galaxy
Memory12 GB – 16 GB12 GB
Storage128 GB, 512 GB128 GB, 256 GB, 512 GB
CPU7 nm, 64-bit octa-core, 2.73 GHz + 2.5 GHz + 2 GHz; 12 GB of LPDDR5 RAM with 128 GB, 16 GB with 512 GBOcta-core (4.47 GHz, 3.5 GHz); 3 nm
GPU–Real-time ray tracing; Vulkan optimisation
Cooling–Larger vapour chamber with a new thermal interface material (TIM)
Storage type128 GB (104 GB available) or 512 GB; microSD card slot up to 1 TB (shared with the second SIM)–
Cameras
Main camera108 MP50 MP
Ultra wide camera12 MP12 MP
Telephoto camera48 MP10 MP
Optical zoom4×3×
Front camera40 MP12 MP
Main camera108 MP wide-angle, F1.8, 79°, PDAF, OIS; nona-binning to 12 MP50 MP wide, F1.8, 85° field of view, OIS, autofocus; Adaptive Pixel sensor
Ultra wide camera12 MP, F2.2, 120°12 MP, F2.2, 120° field of view
Telephoto camera48 MP folded (periscope) telephoto, F3.5, 24°, PDAF, OIS; 4x optical zoom (confirmed by Samsung to Android Authority)10 MP, F2.4, 36° field of view, 3x optical zoom
Front camera40 MP, PDAF, F2.2, 80°12 MP, F2.2, 80° field of view, autofocus
ZoomHybrid Optic Zoom 10x; Space Zoom (digital) up to 100x3x optical zoom; 2x optical-quality zoom (Adaptive Pixel sensor); digital zoom up to 30x
Video recording8K (7,680 × 4,320) at 24 fps; 4K at 60 fps; super slow motion captured at 480 fps in HD and digitally enhanced to 960 fps playbackUp 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)
Camera featuresSingle Take; Night mode; Super Steady video; DepthVision (time-of-flight) cameraProVisual Engine; Nightography; Audio Eraser; Filters made from your own photos
Battery and charging
Battery5,000 mAh4,000 mAh
Video playback (maker's claim)–Up to 29 hours
Wired chargingUp to 45 WUp to 25 W
Wireless chargingYes (wattage not published)Up to 15 W
Battery life detail5,000 mAh typical, 4,855 mAh rated; internet use up to 17 hours (LTE) or 18 hours (Wi-Fi); talk time up to 25 hours (4G)4,000 mAh typical, 3,885 mAh rated; at least 2,000 charge cycles; EU energy class B, 37 h 16 min per charge cycle
Wired charging25 W fast charger included; supports 45 W Super Fast Charging (charger sold separately); compatible with QC2.0 and AFCUp to 50% in around 30 minutes with a 25 W adapter (sold separately) and 3 A USB-C cable; compatible with QC2.0 and AFC/PD
Wireless chargingFast Wireless Charging 2.0 with chargers of 10 W or more (WPC)Fast Wireless Charging 2.0 (WPC Qi); Qi certified at 15 W (Extended Power Profile)
Charges other devicesWireless PowerShareWireless PowerShare
Design
TypeStandardStandard
Weight220 g162 g
Thickness8.8 mm7.2 mm
Height × width166.9 × 76 mm146.9 × 70.5 mm
Water and dust resistanceIP68IP68
Stylus–No
MaterialsGorilla Glass 6 front and back with a metal frameArmor Aluminium frame with at least 20% recycled aluminium
ColoursCosmic Grey, Cosmic BlackIcyblue, Navy, Silver Shadow, Mint; Blueblack, Coralred and Pinkgold (Samsung.com only)
Water resistance detailIP68, up to 1.5 m for 30 minutesIP68, tested for submersion in up to 1.5 m of fresh water for up to 30 minutes; not advised for beach or pool use
BiometricsUltrasonic in-screen fingerprint sensor, face recognitionFingerprint sensor
SensorsUltrasonic fingerprint, accelerometer, barometer, gyro, geomagnetic, Hall, proximity, RGB lightAccelerometer, barometer, fingerprint sensor, gyro sensor, geomagnetic sensor, Hall sensor, light sensor, proximity sensor
SpeakersStereo speakers and earphones sound by AKG; Dolby AtmosStereo speakers
Software
Operating systemAndroidAndroid
Software at launchAndroid 10One UI 7 (Android 15)
Software updates–Seven generations of OS upgrades and seven years of security updates; security updates until 31 January 2032 (UK)
AI features–Galaxy AI, including Now Brief, Now Bar and Audio Eraser; Circle to Search with Google; Gemini on the side button
Connectivity
Satellite messaging–Yes
Mobile network5G Sub6 (NSA, SA, DSS); LTE Cat 20 (up to 2.0 Gbps down, 200 Mbps up), 4×4 MIMO, up to 7CA, LAA5G Sub6 (FDD, TDD, SDL); 4G LTE (FDD, TDD); 3G WCDMA; 2G GSM
SIMHybrid dual SIM (nano-SIM plus nano-SIM or microSD) and eSIMTwo nano-SIMs, nano-SIM and eSIM, or dual eSIM
Wi-FiWi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 and 5 GHz, HE80, MIMO, 1024-QAMWi-Fi 7 (802.11a/b/g/n/ac/ax/be), 2.4, 5 and 6 GHz, EHT320, MIMO, 4096-QAM
BluetoothBluetooth 5.0; ANT+Bluetooth 5.4
NFCYesYes
Satellite features–Works with O2 Satellite in the UK (texts, supported apps, maps and location sharing where O2 has no signal; not emergency calls)
USBUSB Type-C; no 3.5 mm headphone jackUSB Type-C, USB 3.2 Gen 1
PositioningGPS, Galileo, Glonass, BeiDouGPS, Glonass, Beidou, Galileo, QZSS

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