Fitbit Flex 2 vs. Amazfit Bip vs. Garmin Vivofit 4
 | | | |
| FitbitFlex 2Remove Buy Now | AmazfitBipRemove Buy Now | GarminVivofit 4Remove Buy Now |
Basic Info | |||
| Suggested Price | $100 | $99.99 | $79.95 |
| Release | 2016 | 2018 | 2018 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 5 days | 30 days | 1 year |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | n/a | ||
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | n/a | ||
| Resolution | n/a | 176 x 176 | 88 x 88 |
| Size | n/a | 1.28 inches | NA |
| Touch | n/a | ||
| Type | LED | NA | NA |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | 5 ATM | IP68 | 5 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | n/a | ||
| Apps | |||
| Music | |||