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More Information | |||||
| Check Amazon | Check Amazon | Check Amazon | |||
Price and Release Date | |||||
| Suggested Price | $23 | $199 | $399 | $229 | $99 |
| Release / Update | 2016 | 2017 | 2023 | 2017 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Distance | |||||
| Heart | |||||
| VO2max (Oxygen) | |||||
| Sleep | |||||
| Steps | |||||
| Stress mgt | |||||
| Female health | |||||
| Skin temp | |||||
| Breath rate | |||||
Battery | |||||
| Duration | 20 hours | 18 hours | 18 hrs | 48 | 7 days |
| Rechargeable | |||||
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Compatibility Support | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | |||||
| Mac | n/a | n/a | |||
| Windows | n/a | n/a | |||
Connectivity Support | |||||
| Bluetooth | Yes | ||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 340 x 272 or 390 x 312 | 484x396 | 400 x 400 | 128x64 | |
| Size | 0.42 inches | 1.5 inches or 1.65 inches | 41mm and 45mm | 1.39 inches | 0.74 inches |
| Touch | |||||
| Type | OLED | AMOLED | OLED | AMOLED | OLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IP67 | 5 ATM | 5 ATM (50 Meters) | 5 ATM | |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | n/a | WatchOS 4 | WatchOS 10 | Android Wear 2 | FreeRTOS |
| Apps | |||||
| Music | |||||
More Information | |||||
| Check Amazon | Check Amazon | Check Amazon | |||
