Apple Watch Ultra vs Xiaomi Watch S1 Pro

Apple Watch Ultra

Xiaomi Watch S1 Pro

Network
2G network

GSM 850, 900, 1800, 1900

N/A
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100 - global version, China; 850, 1700(AWS), 1900, 2100 - USA, LATAM, Canada

N/A
4G network

LTE frequency band 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - global version, China, Hong Kong; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada

N/A
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
GPRS

-

No
EDGE

-

No

Design
Build

Sapphire crystal front, ceramic/sapphire crystal back, titanium frame

Sapphire crystal front, stainless steel frame, sapphire crystal (heart rate zone), plastic back
SIM

eSIM

No
Height

49 mm

46 mm
Width

44 mm

46 mm
Thickness

14.4 mm

11.8 mm
Weight

61.3 g

-
Waterproof

IP6X (100m)

5ATM
Dust proof

IP6X

-
MIL-STD-810H

Yes

-
Colors

Titanium

Black, Silver

Features
Sensors

Accelerometer, always-on altimeter, barometer, compass, gyro, heart rate, SpO2, temperature (body), temperature(water), VO2max

Accelerometer, barometer, compass, gyro, heart rate, SpO2, thermometer (body temperature)