Polar M400 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Fitbit Charge 3
PolarM400Remove Buy Now | ASUSZenWatch 3Remove Buy Now | Garmin645 MusicRemove Buy Now | FitbitCharge 3Remove Buy Now |
Basic Info | ||||
Suggested Price | $200 | $229 | $450 | $150 |
Release | 2014 | 2017 | 2018 | 2018 |
Activity & Fitness | ||||
Calories | ||||
Cycling (Bicycling) | ||||
Distance | ||||
Heart | n/a | |||
Oxygen | ||||
Sleep | ||||
Steps | ||||
Swim | ||||
Battery | ||||
Duration | 8 hours to 30 days | 48 hours | 7 days | 7 days |
Rechargeable | ||||
Compatibility | ||||
Android | ||||
iOS | ||||
Windows Phone | n/a | |||
Mac | ||||
Windows | Not yet | |||
Connectivity | ||||
Bluetooth | Yes | |||
Cellular | ||||
GPS | ||||
NFC | NA | |||
Wi-Fi | ||||
Display | ||||
Color | ||||
Resolution | n/a | 400 x 400 | 240 x 240 | 66 x 18 |
Size | n/a | 1.39 inches | 1.2 inches | .721 inches |
Touch | ||||
Type | n/a | AMOLED | MIP | OLED |
Functions | ||||
Audio Speaker | Alerts only | |||
Clock | ||||
Phone | ||||
Vibration | ||||
Voice | ||||
Hardware | ||||
Accelerometer | ||||
Barometer or Altimeter | ||||
Ultraviolet Sensor | ||||
Water Resistance | 3 ATM | 5 ATM | 5 ATM | |
Notifications | ||||
Phone | ||||
Emails | ||||
Texts | ||||
Software | ||||
Operating System | n/a | Android Wear 2 | NA | |
Apps | ||||
Music |