Polar M400 vs. Huawei Talkband B2 vs. Asus VivoWatch vs. Fitbit Charge HR vs. Garmin Vivofit 4
PolarM400Remove Buy Now | HuaweiTalkband B2Remove Buy Now | AsusVivoWatchRemove Buy Now | FitbitCharge HRRemove Buy Now | GarminVivofit 4Remove Buy Now |
Basic Info | |||||
Suggested Price | $200 | $180 | $160 | $150 | $79.95 |
Release | 2014 | 2015 | 2018 | 2015 | 2018 |
Activity & Fitness | |||||
Calories | |||||
Cycling (Bicycling) | |||||
Distance | |||||
Heart | n/a | ||||
Oxygen | |||||
Sleep | |||||
Steps | |||||
Swim | |||||
Battery | |||||
Duration | 8 hours to 30 days | 3 days | 24 hours to 10 days | 5 days | 1 year |
Rechargeable | |||||
Compatibility | |||||
Android | |||||
iOS | |||||
Windows Phone | n/a | n/a | NA | NA | |
Mac | n/a | NA | |||
Windows | n/a | NA | |||
Connectivity | |||||
Bluetooth | |||||
Cellular | |||||
GPS | |||||
NFC | |||||
Wi-Fi | |||||
Display | |||||
Color | |||||
Resolution | n/a | 128 x 88 | 128 x 128 | NA | 88 x 88 |
Size | n/a | 0.73 inches | NA | NA | NA |
Touch | NA | ||||
Type | n/a | PMOLED | NA | OLED | NA |
Functions | |||||
Audio Speaker | Alerts only | Bluetooth | |||
Clock | |||||
Phone | |||||
Vibration | |||||
Voice | |||||
Hardware | |||||
Accelerometer | |||||
Barometer or Altimeter | NA | ||||
Ultraviolet Sensor | |||||
Water Resistance | 3 ATM | IP57 | IP67 | 1 ATM | 5 ATM |
Notifications | |||||
Phone | |||||
Emails | |||||
Texts | |||||
Software | |||||
Operating System | n/a | n/a | KoodOS | NA | |
Apps | |||||
Music |