Fitbit Charge 3 vs. Polar A370 vs. Polar Loop vs. Garmin Vivosmart 4
 | | | | |
| FitbitCharge 3Remove Buy Now | PolarA370Remove Buy Now | PolarLoopRemove Buy Now | GarminVivosmart 4Remove Buy Now |
Basic Info | ||||
| Suggested Price | $150 | $179.95 | $100 | $130 |
| Release | 2018 | 2017 | 2013 | 2018 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | ||||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 7 days | Up to 3 days | 5 days | 7 days |
| Rechargeable | ||||
Compatibility | ||||
| Android | ||||
| iOS | ||||
| Windows Phone | NA | |||
| Mac | NA | |||
| Windows | Not yet | NA | ||
Connectivity | ||||
| Bluetooth | ||||
| Cellular | ||||
| GPS | ||||
| NFC | NA | |||
| Wi-Fi | ||||
Display | ||||
| Color | ||||
| Resolution | 66 x 18 | 160 x 80 | NA | 48 x 128 |
| Size | .721 inches | 1.18 inches | NA | 0.74 inches |
| Touch | ||||
| Type | OLED | TFT LCD | LED | OLED |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | ||||
| Vibration | ||||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 5 ATM | WR30 | 2 ATM | 5 ATM |
Notifications | ||||
| Phone | ||||
| Emails | ||||
| Texts | ||||
Software | ||||
| Operating System | NA | NA | ||
| Apps | ||||
| Music | ||||