Fitbit Ionic vs. Asus VivoWatch vs. Fitbit Charge 3 vs. Fitbit Flex vs. Apple Watch 7
 | | | | | |
| FitbitIonicRemove Buy Now | AsusVivoWatchRemove Buy Now | FitbitCharge 3Remove Buy Now | FitbitFlexRemove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | |||||
| Suggested Price | $299 | $160 | $150 | $100 | $429 |
| Release | 2017 | 2018 | 2018 | 2013 | 2021 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 4+ days | 24 hours to 10 days | 7 days | 5 days | 18 Hours |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | NA | NA | |||
| Mac | NA | ||||
| Windows | NA | Not yet | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | NA | ||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 348x250 | 128 x 128 | 66 x 18 | NA | 396 x 484 |
| Size | 1.42 | NA | .721 inches | NA | 1.9 inches |
| Touch | NA | ||||
| Type | OLED | NA | OLED | LED | MicroLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | NA | ||||
| Ultraviolet Sensor | |||||
| Water Resistance | 50m | IP67 | 5 ATM | 1 ATM | water resistant but not waterproof |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Fitbit OS | KoodOS | NA | NA | WatchOS 8 |
| Apps | |||||
| Music | |||||