Samsung Galaxy Watch Ultra vs Xiaomi 18 Pro Max Specs Comparison

Availability

Officially announced
	Sep 24, 2026
Prices (MSRP)
$650	12GB/256GB - €920 12GB/512GB 16GB/512GB 16GB/1TB

Design

Dimensions
1.85 x 1.87 x 0.48 inches 47.1 x 47.4 x 12.1 mm	6.43 x 3.06 x 0.33 inches 163.43x 77.6 x 8.39 mm 8.47 mm
Weight
2.13 oz / 60.5 g	8.29 oz / 235.0 g 240 gr
Materials
Back: Glass (Sapphire), Ceramic Frame: Titanium	Back: Glass Frame: Aluminum
Resistance
Water (up to 10 meters), Dust; IP68; MIL-STD-810 certified	Water (up to 6 meters), Dust; IP68
Biometrics
	2D Face unlock, Ultrasonic in-screen fingerprint
Keys
	Left: AI button; Right: Volume control, Lock/Unlock key
Colors
Titanium Silver, Titanium Gray, Titanium White	Black, White, Pink, Red, Blue

Display

Size
1.5-inch	6.9-inch, 91.92% screen-to-body
Type
Super AMOLED	AMOLED, 120Hz, Dolby Vision, 4000 nits
Resolution
480x480px, 453 PPI	2624x1208px, 19.5:9 ratio, 419 PPI
Protection
Sapphire	Xiaomi Dragon Crystal Glass 3
Features
	HDR support
Rear cover display
	2.9 inches 596 x976 px AMOLED Scratch-resistant glass (Xiaomi Dragon Crystal Glass 3)

Hardware

System chip
Exynos W1000 (3 nm)	Snapdragon 8 Elite Extreme Gen 6 SM8975 (2 nm)
Processor
	Octa-core 2x Oryon @5GHz 3X Oryon @4.03GHz 3X Oryon @3.74GHz
GPU
Mali-G68	Adreno 850
Memory
2GB/32GB	12GB (LPDDR5X)/256GB (UFS 4.1) 12GB/512GB 16GB/256GB 16GB/512GB 16GB/1TB
Storage expansion
	not expandable
OS
Wear OS	Android (17)

Battery

Type
590 mAh	8500 mAh, Si - Carbon
Charging
Qi wireless charging	Qualcomm Quick Charge 3.0, Fast charging Reverse wireless charging, Reverse wired charging
Charge speed
Wireless: 10.0W	Wired: 100.0W Wireless: 50.0W

Camera

Rear
	Triple camera
Main camera
	200 MP (LOFIC sensor, OIS, Laser and PDAF) Sensor name: Light Hunter 960L Aperture size: F1.7 Focal length: 23 mm Sensor size: 1/1.28" Pixel size: 0.61 μm
Second camera
	50 MP (Ultra-wide, PDAF) Aperture size: F2.4 Focal Length: 17 mm Sensor size: 1/2.88"
Third camera
	200 MP (Telephoto, Periscope, OIS, PDAF) Optical zoom: 3.2x Aperture size: F2.4 Focal Length: 75 mm Sensor size: 1/1.56"
Flash
	LED
Front
	50 MP Video capture: 4K UHD (60 fps)

Connectivity & Features

Bluetooth
5.3	6.0
WLAN
Yes 802.11 a, b, g, n, ac	Wi-Fi 6E,Wi-Fi 7 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax, be
USB
	Type-C, USB 3.2
Sensors
Accelerometer, Gyroscope, Pedometer, Compass, Heart rate, Thermometer, Barometer, Step detector, ECG, Blood Oxygen, Ambient light sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC
Other
NFC	NFC, Infrared

Multimedia

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

Cellular

5G Bands
	n1, n2, n3, n5, n7, n8, n12, n13, n14, n20, n25, n26, n28, n29, n38, n40, n41, n48, n66, n70, n71, n77, n78, n79, n80, n84, SA, NSA
LTE Bands
	1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 66, 71
TDD Bands
	34, 38, 39, 40, 41, 42, 43, 48
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE
Dual SIM
	Yes
SIM type
eSIM	Dual Nano SIM

Discover more

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Full Specs Xiaomi 18 Pro Max Specs