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Battery
Type Li-Ion 390 mAh Li-Ion 225 mAh
Body
Build Glass front, plastic back, plastic frame Plastic back, plastic frame
Dimensions 38.9 x 25.2 x 12.7 mm (1.53 x 0.99 x 0.5 in) 39.1 x 34.4 x 10 mm (1.54 x 1.35 x 0.39 in)
SIM No No
Weight 40 g (1.41 oz) 31 g (1.09 oz)
  IP68 dust tight and water resistant (immersible up to 1.5m) Not swim proof Compatible with standard 22mm straps Waterproof (5ATM) 50m water resistant
Camera
  No No
Comms
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
NFC No Yes
Positioning GPS (L1+L5) GPS, GLONASS, GALILEO, BDS
Radio No No
USB No No
WLAN No No
Display
Resolution 320 x 385 pixels (~286 ppi density) 360 x 320 pixels (~301 ppi density)
Size 1.75 inches 1.6 inches
Type IPS LCD, 600 nits (peak) AMOLED
Features
Sensors Accelerometer, heart rate, SpO2 Accelerometer, heart rate, compass, SpO2
Launch
Announced 2021, May 20 2021, October 28
Status Available. Released 2021, May 29 Available. Released 2021, November 11
Memory
Card slot No No
Internal - Unspecified storage
  eMMC 4.5 -
Misc
Colors Space Grey, Metallic Silver Black, Blue, Ivory
Models - M2102W1
Network
2G bands N/A N/A
3G bands N/A N/A
4G bands N/A N/A
EDGE No No
GPRS No No
Speed No No
Technology No cellular connectivity No cellular connectivity
Platform
OS Proprietary OS Proprietary OS
Sound
3.5mm jack No No
Loudspeaker No No
Offers No offers available No offers available