Basic Info |
| Suggested Price | $79.99 | $200 | $470 | $80 |
| Release | 2018 | 2015 | 2014 | 2016 |
Activity & Fitness |
| Calories | | | | |
| Cycling (Bicycling) | | | n/a | |
| Distance | | | | |
| Heart | | | n/a | |
| Oxygen | | | | |
| Sleep | | | | |
| Steps | | | | |
| Swim | | | | |
Battery |
| Duration | 12 days | 12 days | 13 hours to 30 days | 8 months |
| Rechargeable | | | | |
Compatibility |
| Android | | | | n/a |
| iOS | | | | n/a |
| Windows Phone | | n/a | n/a | n/a |
| Mac | | | | n/a |
| Windows | | | | n/a |
Connectivity |
| Bluetooth | | | | n/a |
| Cellular | | | | |
| GPS | | | | |
| NFC | | | | |
| Wi-Fi | | | | |
Display |
| Color | | | | n/a |
| Resolution | 80 x 160 | 160 x 80 | n/a | n/a |
| Size | 1.23 inches | 1.18 inches | n/a | n/a |
| Touch | | | | n/a |
| Type | IPS LCD | n/a | n/a | E-Ink |
Functions |
| Audio Speaker | | | Alerts only | |
| Clock | | | | |
| Phone | | | | n/a |
| Vibration | | | | n/a |
| Voice | | | | |
Hardware |
| Accelerometer | | | | |
| Barometer or Altimeter | | | | |
| Ultraviolet Sensor | | | | |
| Water Resistance | 5 ATM | WR30 | 3 ATM | 5 ATM |
Notifications |
| Phone | | | | n/a |
| Emails | | | | n/a |
| Texts | | | | n/a |
Software |
| Operating System | | n/a | n/a | n/a |
| Apps | | | | n/a |
| Music | | | | |
