Xiaomi 15 Ultra vs Samsung Galaxy Watch Ultra (2025) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

7.4
Xiaomi 15 Ultra	Samsung Galaxy Watch Ultra (2025)
Released · Feb 27, 2025	Not announced · Expected Jul 09, 2025
6.7-inch · 3200x1440px	1.5-inch · 480x480px
Quad camera
16GB · 512GB	2GB · 32GB
6000 mAh	590 mAh

Design

Dimensions
6.35 x 2.96 x 0.37 inches (~0.42 inches with camera bump) 161.3 x 75.3 x 9.4 mm (~10.7 mm with camera bump)
Weight
	2.13 oz (60.5 g)
Materials
	Back: Glass (Sapphire), Ceramic Frame: Titanium
Resistance
Water, Dust; IP68	Water (up to 10 meters), Dust; IP68; MIL-STD-810 certified
Biometrics
Ultrasonic in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key
Colors
Black, White, Silver Chrome, Green	Titanium Silver, Titanium Gray, Titanium White

Display

Size
6.7-inch	1.5-inch
Resolution
3200x1440px, 20:9 ratio, 521 PPI	480x480px, 453 PPI
Technology
AMOLED	Super AMOLED
Refresh rate
120Hz
Screen-to-body
90.18 %
Peak brightness
3000 cd/m2 (nit)
Features
HDR support, Dolby Vision, Scratch-resistant glass (Xiaomi Shield Glass 2.0), Ambient light sensor, Proximity sensor	Scratch-resistant glass (Sapphire), Ambient light sensor

Hardware

System chip
Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm)	Exynos W1000 (3 nm)
Processor
Octa-core 2x 4.32GHz Oryon V2 Phoenix L + 6x 3.53GHz Oryon V2 Phoenix M
GPU
Adreno 830	Mali-G68
RAM
16GB (LPDDR5X)	2GB
Internal storage
512GB (UFS 4.1)	32GB
Storage expansion
not expandable
OS
Android (15)	Wear OS

Battery

Capacity
6000 mAh	590 mAh
Type
Si - Carbon
Charging
Fast charging, Qi wireless charging, Reverse wireless charging	Qi wireless charging
Charge speed
Wired: 90.0W Wireless: 80.0W	Wireless: 10.0W

Battery Life Estimate

7h 33min

Browsing

16h 39min

Video

10h 11min

Gaming

13h 29min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Camera

Rear
Quad camera
Main camera
50 MP (Autofocus, Laser and PDAF) Aperture size: F1.6 Focal length: 23 mm Sensor size: 1" Pixel size: 1.6 μm
Second camera
50 MP (Ultra-wide, PDAF) Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/2.76" Pixel size: 0.64 μm
Third camera
50 MP (Telephoto) Optical zoom: 3.2x Aperture size: F1.8 Focal Length: 75 mm Sensor size: 1/2.51" Pixel size: 0.7 μm
Fourth camera
200 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 4.3x Aperture size: F2.6 Focal Length: 100 mm Sensor size: 1/1.4" Pixel size: 0.56 μm
Fifth camera
ToF 3D depth sensing
Flash
Dual LED
Video recording
7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (1920 fps)
Front
32 MP, Video capture: 3840x2160 (4K UHD) (60 fps)

158

Overall

165

Photo

150

Video

N/A

Overall

N/A

Photo

N/A

Video

Connectivity & Features

Bluetooth
6.0	5.3
WLAN
802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E,Wi-Fi 7,tri-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac
USB
Type-C, USB 3.2
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning, Emergency SOS via satellite (SMS sending/receiving)	GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Compass, Barometer	Accelerometer, Gyroscope, Pedometer, Compass, Heart rate, Thermometer, Barometer, Step detector, ECG, Blood Oxygen
Other
NFC, Infrared	NFC

Multimedia

Headphones
No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Loudspeaker
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, n34, n38, n39, n40, n41, n48, n66, n71, n75, n77, n78, n79, 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), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500), 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s	LTE
SIM type
Dual Nano SIM + eSIM	eSIM

Buyers information

MSRP
€ 1500

Availability

Officially announced
Feb 27, 2025
Expected Announcement
	Jul 09, 2025

Alternative variants

With 16GB RAM and 512GB internal storage


RAM	16GB
Internal storage	512GB

With 16GB RAM and 1TB internal storage


RAM	16GB
Internal storage	1024GB

Links

Full specifications
Xiaomi 15 Ultra Specs	Samsung Galaxy Watch Ultra (2025) Specs
PhoneArena Review
Xiaomi 15 Ultra Review