Polar M400 vs. Amazfit Bip vs. Amazfit GTR vs. Apple Watch 7
PolarM400Remove Buy Now | AmazfitBipRemove Buy Now | AmazfitGTRRemove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | ||||
Suggested Price | $200 | $99.99 | $199 | $429 |
Release | 2014 | 2018 | 2019 | 2021 |
Activity & Fitness | ||||
Calories | ||||
Cycling (Bicycling) | ||||
Distance | ||||
Heart | n/a | |||
Oxygen | ||||
Sleep | ||||
Steps | ||||
Swim | ||||
Battery | ||||
Duration | 8 hours to 30 days | 30 days | 24 days | 18 Hours |
Rechargeable | ||||
Compatibility | ||||
Android | ||||
iOS | ||||
Windows Phone | n/a | |||
Mac | ||||
Windows | ||||
Connectivity | ||||
Bluetooth | ||||
Cellular | ||||
GPS | ||||
NFC | ||||
Wi-Fi | ||||
Display | ||||
Color | ||||
Resolution | n/a | 176 x 176 | 454 x 454 | 396 x 484 |
Size | n/a | 1.28 inches | 1.39 inches | 1.9 inches |
Touch | ||||
Type | n/a | NA | AMOLED | MicroLED |
Functions | ||||
Audio Speaker | Alerts only | |||
Clock | ||||
Phone | ||||
Vibration | ||||
Voice | ||||
Hardware | ||||
Accelerometer | ||||
Barometer or Altimeter | ||||
Ultraviolet Sensor | ||||
Water Resistance | 3 ATM | IP68 | 5 ATM | water resistant but not waterproof |
Notifications | ||||
Phone | ||||
Emails | ||||
Texts | ||||
Software | ||||
Operating System | n/a | Build-in | WatchOS 8 | |
Apps | ||||
Music |