Display Size: 1.43 inches AMOLED color screen
Resolution: 466 × 466 pixels, PPI 326
Dimensions: 46 mm × 46 mm × 10.9 mm
Wrist Size: 140-210 mm
Weight: Approximately 48 g (strap excluded)
Micrphone: Supported
Speaker: Supported
NFC: Supported
Water Resistant: 5 ATM water-resistant
Material: Stainless Steel
Temperature: -20℃ – +45℃
iOS or Android: Android 8.0 or lateriOS 13.0 or later

Battery: 

• 14-day battery life for maximum usage
• 8-day battery life for regular usage
• 4-day battery life with Always On Display enabled

Sensors: 

• Accelerometer sensor
• Gyroscope sensor
• Magnetometer sensor
• Optical heart rate sensor
• Barometer sensor
• Temperature sensor
   

Display Size: 1.32 inches AMOLED color screen
Resolution: 466 × 466 pixels, PPI 352
Dimensions: 41.3 mm × 41.3 mm × 9.8 mm
Wrist Size: 120-190 mm
Weight: Approximately 37 g (strap excluded)
Micrphone: Supported
Speaker: Supported
NFC: Supported
Water Resistant: 5 ATM water-resistant
Material: Stainless Steel
Temperature: -20℃ – +45℃
iOS or Android: Android 8.0 or lateriOS 13.0 or later

Battery: 

• 7-day battery life for maximum usage
• 4-day battery life for regular usage
• ​​​​​​​2-day battery life with Always On Display enabled

Sensors: 

• Accelerometer sensor
• Gyroscope sensor
• Magnetometer sensor
• Optical heart rate sensor
• Barometer sensor
• Temperature sensor