Fitbit Flex 2 vs. Garmin Vivofit 4 vs. Polar Loop
 | | | |
| FitbitFlex 2Remove Buy Now | GarminVivofit 4Remove Buy Now | PolarLoopRemove Buy Now |
Basic Info | |||
| Suggested Price | $100 | $79.95 | $100 |
| Release | 2016 | 2018 | 2013 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 5 days | 1 year | 5 days |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | n/a | NA | |
| Mac | NA | ||
| Windows | NA | ||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | n/a | ||
| Resolution | n/a | 88 x 88 | NA |
| Size | n/a | NA | NA |
| Touch | n/a | ||
| Type | LED | NA | LED |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | 5 ATM | 5 ATM | 2 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | n/a | NA | |
| Apps | |||
| Music | |||