Compare devices wearable

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Xiaomi Watch S1
Xiaomi · wearable

Watch S1

Apple Watch Ultra
Apple · wearable

Watch Ultra

3

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Launch

2
Announced
2021-12-28
2022-09-07
Status
Available
Available

General

2
Model name
Xiaomi Watch S1
Apple Watch Ultra
Model number
M2108W1
A2684

Body

9
Height
46.5 mm
49 mm
Width
46.5 mm
44 mm
Thickness
11 mm
14.4 mm
Weight
53 g
61.3 g
Colors
  • Black
  • Silver
  • Titanium
Back material
Plastic
ceramic/sapphire crystal
Frame material
Stainless steel
Titanium
QWERTY keyboard
✕ No
✕ No
Protection
–
IP6x

Platform

2
OS
Proprietary OS
watchOS 9.0
Chipset
–
Apple S8

Memory

2
Dedicated card slot
✕ No
✕ No
Memory
–
  • 32GB

Display

6
Size
1.43"
1.92"
Resolution width
466 px
502 px
Resolution height
466 px
410 px
Pixel density
326 ppi
338 ppi
High refresh rate
✕ No
✕ No
Technology
AMOLED
Retina LTPO OLED

Main camera

2
HDR
✕ No
✕ No
Panorama
✕ No
✕ No

Sound

3
3.5mm jack
✕ No
✕ No
Stereo speakers
✕ No
✕ No
Loudspeaker
✓ Yes
✓ Yes

Sensors

6
Gyroscope
✓ Yes
✓ Yes
Compass
✓ Yes
✓ Yes
Barometer
✓ Yes
✓ Yes
Heart rate
✓ Yes
✓ Yes
Accelerometer
✓ Yes
✓ Yes
Proximity
✕ No
✕ No

Connectivity

6
Wi-Fi
Wi‑Fi 4 (802.11n) (72–600 Mbit/s)
Wi‑Fi 4 (802.11n) (72–600 Mbit/s)
Bluetooth
Bluetooth 5.2
Bluetooth 5.3
GPS
✓ Yes
✓ Yes
NFC
✓ Yes
✓ Yes
Infrared port
✕ No
✕ No
FM radio
✕ No
✕ No

Battery

4
Capacity
470 mAh
542 mAh
Type
Li-Po
Li-ion
Removable
✕ No
✕ No
Wireless charging
✓ Yes
✓ Yes

Network

4
2G bands
–
  • GSM-850
  • P-GSM-900
  • E-GSM-900
  • DCS-1800
  • PCS-1900
3G bands
–
  • B5 (850 MHz)
  • B8 (900 MHz)
  • B4 (1700 MHz)
  • B2 (1900 MHz)
  • B1 (2100 MHz)
4G bands
–
  • B1 (2100 MHz)
  • B2 (1900 MHz)
  • B3 (1800 MHz)
  • B4 (1700 MHz)
  • B5 (850 MHz)
  • B6
  • B7 (2600 MHz)
  • B8 (900 MHz)
SIM
–
  • Single SIM (Embedded-SIM)