Xiaomi Mi Mix 3 vs Samsung Galaxy S25 Ultra Specs Comparison

Availability

Officially announced
Oct 25, 2018	Jan 22, 2025
Prices (MSRP)
	12GB/256GB - $1299 | €1449 12GB/512GB - $1420 12GB/1TB - $1660

Design

Dimensions
6.22 x 2.94 x 0.33 inches 157.89 x 74.69 x 8.46 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
7.69 oz / 218.0 g	7.69 oz / 218.0 g
Materials
Back: Ceramic Frame: Aluminum	Back: Glass (Corning Gorilla Glass Victus 2) Frame: Titanium
Resistance
	Water, Dust; IP68
Biometrics
2D Face unlock, Fingerprint (touch)	Ultrasonic in-screen fingerprint
Features
Notification light	Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black, Green, Blue	Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray

Display

Size
6.4-inch, 84.96% screen-to-body	6.9-inch, 90.30% screen-to-body
Type
Super AMOLED, HDR, 600 nits	Dynamic AMOLED, 120Hz, HDR, 2600 nits
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	3120x1440px, 19.5:9 ratio, 498 PPI
Protection
	Corning Gorilla Glass Armor 2

PhoneArena Display Test

Bright Max (20% APL)
Untested	2373 (Excellent)
Bright Min
2 (Good)	0.8 (Excellent)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Snapdragon 8 Elite for Galaxy SM8750-AB (3 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 2x4.47GHz Oryon V2 PhoenixL 6x3.53GH​z Oryon V2 PhoenixM
GPU
Adreno 630	Adreno 830
Memory
8GB (LPDDR4)/256GB 6GB/256GB 8GB/256GB 10GB/256GB	12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB
Storage expansion
not expandable	not expandable
OS
Android (9.0 Pie)	Android (15), up to 7 OS updates

PhoneArena Performance Test

GeekBench 6 Single
Untested	3137
GeekBench 6 Multi
Untested	9769
3D Mark High
Untested	6208
3D Mark Low
Untested	2981

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
3200 mAh, Li - Polymer	5000 mAh, Li - Ion
Charging
Qualcomm Quick Charge 4+ Qi wireless charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	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
Dual camera	Quad camera
Main camera
12.2 MP (OIS, PDAF) Aperture size: F1.8 Sensor size: 1/2.55" Pixel size: 1.4 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
12 MP (Telephoto) Optical zoom: 2.0x Sensor size: 1/3.4" Pixel size: 1 μm	50 MP (Ultra-wide, PDAF) Sensor name: Samsung JN3 Aperture size: F1.9 Pixel size: 0.7 μm
Third camera
	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
4K UHD (60 fps), 1080p (960 fps), 720p (960 fps) Time-lapse video, EIS, Video calling, Video sharing	8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording
Front
24 MP (Dual-Camera, Flash, HDR)	12 MP (PDAF, HDR) Video capture: 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
5.0	5.4
WLAN
dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, VoIP, Tethering, Computer sync, OTA sync	NFC, Ultra Wideband (UWB)

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	aptX, aptX-HD
Screen mirroring
Wireless screen share

Cellular

5G Bands
	n1, n2, n5, n7, n25, n28, n41, n66, n71, n77, n78, n257, n258, n260, n261, SA, NSA, Sub-6, mmWave International version - n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71 International version - 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
TDD Bands
34, 38, 39, 40, 41	38, 39, 40, 41, 48 International version - 38, 39, 40, 41
3G Bands
6, 5, 8, 4, 3, 2, 1	1, 2, 4, 5, 8
Data Speed
LTE-A, HSPA, HSUPA	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM, eSIM
HD Voice
Yes
VoLTE
Yes

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

Alternative variants

with 6 GB RAM

Memory	6GB
Colors	Black

With 512GB internal storage

Memory	512GB
Prices (MSRP)	$1420

with 256 GB storage

Memory	256GB
Colors	Black

With 1TB internal storage

Memory	1024GB
Prices (MSRP)	$1660

Forbidden City Special Edition

Memory	10GB

International

5G Bands	n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
TDD Bands	38, 39, 40, 41
SIM type	Dual Nano SIM + eSIM

Discover more

Full Specs Xiaomi Mi Mix 3 Specs PA Review Xiaomi Mi Mix 3 Review

Full Specs Samsung Galaxy S25 Ultra Specs PA Review Samsung Galaxy S25 Ultra Review