Fitbit Ionic vs. Fitbit Flex vs. Apple Series 6
 | | | |
| FitbitIonicRemove Buy Now | FitbitFlexRemove Buy Now | AppleSeries 6Remove Buy Now |
Basic Info | |||
| Suggested Price | $299 | $100 | $399 |
| Release | 2017 | 2013 | 2020 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 4+ days | 5 days | Not yet |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | NA | ||
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | |||
| Resolution | 348x250 | NA | 384 x 480 |
| Size | 1.42 | NA | 40mm |
| Touch | NA | ||
| Type | OLED | LED | MicroLED |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | 5 ATM | ||
| Water Resistance | 50m | 1 ATM | |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | Fitbit OS | NA | WatchOS 5 |
| Apps | |||
| Music | |||