Xiaomi 12S Ultra vs Samsung Galaxy S25 Ultra Specs Comparison

Design

Dimensions
6.43 x 2.95 x 0.36 inches 163.2 x 75 x 9.1 mm	6.41 x 3.06 x 0.32 inches (~0.36 inches with camera bump) 162.8 x 77.6 x 8.2 mm (~9.1 mm with camera bump)
Weight
7.94 oz (225.0 g)	7.69 oz (218.0 g)
Materials
Back: Leather Frame: Aluminum	Back: Glass (Corning Gorilla Glass Armor 2) Frame: Titanium
Resistance
Yes; IP68	Water, Dust; IP68
Biometrics
Optical in-screen fingerprint	Ultrasonic in-screen fingerprint
Features
	Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Display

Size
6.7-inch	6.9-inch
Resolution
3200x1440px, 20:9 ratio, 521 PPI	3120x1440px, 19.5:9 ratio, 498 PPI
Technology
AMOLED	Dynamic AMOLED
Refresh rate
120Hz	120Hz
Screen-to-body
89.36 %	90.30 %
Peak brightness
1500 cd/m2 (nit)	2600 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Armor 2), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm)	Qualcomm Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Octa-core 1x 3.19GHz Cortex-X2 + 3x 2.75GHz Cortex-A710 + 4x 1.80GHz Cortex-A510	Octa-core 2x 4.47GHz Oryon V2 Phoenix L + 6x 3.53GHz Oryon V2 Phoenix M
GPU
Adreno 730	Adreno 830
RAM
8GB	12GB (LPDDR5X)
Internal storage
256GB	256GB (UFS 4.0)
Storage expansion
not expandable	not expandable
OS
Android (12)	Android (15), One UI

Battery

Capacity
4860 mAh	5000 mAh
Type
	Li - Ion
Charging
Fast charging, Qi wireless charging, Reverse wired charging	Fast charging, Qi wireless charging, Reverse wireless charging
Charge speed
Wired: 67.0W Wireless: 50.0W	Wired: 45.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

8h 0min

Browsing

20h 49min

Video

8h 54min

Gaming

14h 21min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Quad camera
Main camera
50.3 MP (OIS, Laser and PDAF) Aperture size: F1.9 Focal length: 23 mm Sensor size: 1" Pixel size: 1.6 μm	200 MP (OIS, Laser and PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
48 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2" Pixel size: 0.8 μm	50 MP (Ultra-wide, PDAF) Sensor name: Samsung JN3 Aperture size: F1.9 Pixel size: 0.7 μm
Third camera
48 MP (Telephoto, Periscope) Optical zoom: 5.0x Aperture size: F4.1 Focal Length: 120 mm Sensor size: 1/2" Pixel size: 0.8 μm	10 MP (Telephoto, OIS, PDAF) Sensor name: Sony IMX754 Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
	50 MP (Telephoto, Periscope, OIS, PDAF) Sensor name: Sony IMX854 Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Flash
Dual LED	LED
Video recording
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (1920 fps)	7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (240 fps) HDR, Continuous autofocus, Picture-taking during video recording
Front
20 MP	12 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

158

Overall

165

Photo

150

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.2	5.4
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6) Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot
USB
Type-C	Type-C, USB 3.2
Hearing aid compatible
	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass, Barometer
Other
NFC, Infrared	NFC, Ultra Wideband (UWB)

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
	aptX, aptX-HD

Cellular

5G
Bands 5G Ready	Bands n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n257, n258, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 48(3600)
3G
	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM	Nano SIM, eSIM

Regulatory Approval

FCC approval
	Date approved: Nov 26, 2024 FCC ID value: A3LSMS938U
Measured SAR
	Head: 1.26 W/kg Body: 0.64 W/kg Simultaneous Transmission: 1.19 W/kg

Buyers information

MSRP
	$ 1299 / € 1449
In The Box
	USB-C cable, SIM ejector tool, Paperwork

Availability

Officially announced
Jul 04, 2022	Jan 22, 2025

Alternative variants

With 12GB RAM

RAM	12GB

With 512GB internal storage

Internal storage	512GB
MSRP	$ 1420

With 12GB RAM and 512GB internal storage

RAM	12GB
Internal storage	512GB

With 1TB internal storage

Internal storage	1024GB
MSRP	$ 1660

International

5G	Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
SIM type	Dual Nano SIM + eSIM

Links

Full specifications
Xiaomi 12S Ultra Specs	Samsung Galaxy S25 Ultra Specs
PhoneArena Review
	Samsung Galaxy S25 Ultra Review
User Reviews
	Samsung Galaxy S25 Ultra User Reviews