Fitbit One vs. Fitbit Charge vs. Amazfit T-Rex
 | | | |
| FitbitOneRemove Buy Now | FitbitChargeRemove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | |||
| Suggested Price | $100 | $130 | $140 |
| Release | 2012 | 2014 | 2019 |
Activity & Fitness | |||
| Calories | |||
| Cycling (Bicycling) | |||
| Distance | |||
| Heart | |||
| Oxygen | |||
| Sleep | |||
| Steps | |||
| Swim | |||
Battery | |||
| Duration | 10-14 days | 7-10 days | 20 days |
| Rechargeable | |||
Compatibility | |||
| Android | |||
| iOS | |||
| Windows Phone | n/a | NA | |
| Mac | |||
| Windows | |||
Connectivity | |||
| Bluetooth | |||
| Cellular | |||
| GPS | |||
| NFC | |||
| Wi-Fi | |||
Display | |||
| Color | |||
| Resolution | n/a | NA | 360 x 360 |
| Size | n/a | NA | 1.3 inches |
| Touch | NA | ||
| Type | OLED | OLED | AMOLED |
Functions | |||
| Audio Speaker | |||
| Clock | |||
| Phone | |||
| Vibration | |||
| Voice | |||
Hardware | |||
| Accelerometer | |||
| Barometer or Altimeter | |||
| Ultraviolet Sensor | |||
| Water Resistance | Splast Resistant | 1 ATM | 5 ATM |
Notifications | |||
| Phone | |||
| Emails | |||
| Texts | |||
Software | |||
| Operating System | n/a | NA | Build-in |
| Apps | |||
| Music | |||