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Basic Info | ||||
| Suggested Price | $79.99 | $349 | $100 | $80 |
| Release | 2018 | 2015 | 2016 | 2016 |
Activity & Fitness | ||||
| Calories | ||||
| Cycling (Bicycling) | ||||
| Distance | ||||
| Heart | n/a | |||
| Oxygen | ||||
| Sleep | ||||
| Steps | ||||
| Swim | ||||
Battery | ||||
| Duration | 12 days | 18 hours | 1 year | 8 months |
| Rechargeable | ||||
Compatibility | ||||
| Android | n/a | |||
| iOS | n/a | |||
| Windows Phone | NA | n/a | ||
| Mac | NA | n/a | n/a | |
| Windows | NA | n/a | n/a | |
Connectivity | ||||
| Bluetooth | n/a | |||
| Cellular | ||||
| GPS | ||||
| NFC | ||||
| Wi-Fi | ||||
Display | ||||
| Color | n/a | |||
| Resolution | 80 x 160 | 340 x 272 or 390 x 312 | 64 x 64 | n/a |
| Size | 1.23 inches | 1.5 inches or 1.65 inches | 0.55 inches | n/a |
| Touch | n/a | |||
| Type | IPS LCD | AMOLED | n/a | E-Ink |
Functions | ||||
| Audio Speaker | ||||
| Clock | ||||
| Phone | n/a | |||
| Vibration | n/a | |||
| Voice | ||||
Hardware | ||||
| Accelerometer | ||||
| Barometer or Altimeter | ||||
| Ultraviolet Sensor | ||||
| Water Resistance | 5 ATM | IPX7 | 5 ATM | 5 ATM |
Notifications | ||||
| Phone | n/a | |||
| Emails | n/a | |||
| Texts | n/a | |||
Software | ||||
| Operating System | Watch OS | n/a | n/a | |
| Apps | n/a | |||
| Music | ||||