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Price and Release Date | 
| Suggested Price | $399 | $799 | $249 | $229 | $699 | $599 | $400 | $180 | $279 | 
| Release / Update | 2024 | 2023 | 2022 | 2017 | 2022 | 2019 | 2021 | 2019 | 2022 | 
Activity & Fitness | 
| Calories |  |  |  |  |  |  |  |  |  | 
| Distance |  |  |  |  |  |  |  |  |  | 
| Heart | Third-generation optical heart sensor | Third-generation optical heart sensor |  |  |  |  |  |  |  | 
| VO2max (Oxygen) |  |  |  |  |  |  |  |  |  | 
| Sleep |  |  |  |  |  |  |  |  |  | 
| Steps |  |  |  |  |  |  |  |  |  | 
| Stress mgt |  |  |  |  |  |  |  |  |  | 
| Female health |  |  |  |  |  |  |  |  |  | 
| Skin temp |  |  |  |  |  |  |  |  |  | 
| Breath rate |  |  |  |  |  |  |  |  |  | 
Battery | 
| Duration | Up to 18 hours normal use | Up to 36 hours normal use, Up to 72 hours in Low Power Mode | Not yet | 48 | 9 Days | 36 Hours | 11 Days | 2 days | 50 Hours | 
| Rechargeable |  |  |  |  |  |  |  |  |  | 
        | 
		 
        
		 
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Compatibility Support | 
| Android |  |  |  |  |  |  |  |  |  | 
| iOS |  |  |  |  |  |  |  |  |  | 
| Windows Phone |  |  |  |  |  |  |  |  |  | 
| Mac |  |  |  | n/a |  |  |  |  |  | 
| Windows |  |  |  | n/a |  |  |  |  |  | 
Connectivity Support | 
| Bluetooth |  |  |  | Yes
 |  |  |  |  |  | 
| Cellular |  |  | Optional |  |  |  |  |  |  | 
| GPS |  |  |  |  |  |  |  |  |  | 
| NFC |  |  |  |  |  |  |  |  |  | 
| Wi-Fi |  |  |  |  |  |  |  |  |  | 
Display | 
| Color |  |  |  |  |  |  |  |  |  | 
| Resolution | 42mm: 374 x 446 pixels; 46mm: 416 x 496 pixels | 502 x 410 pixels | 368 x 448 pixels | 400 x 400 | 240 x 240 | 240 x 240 | 416 x 416 | 400 x 400 | 396 x 396 | 
| Size | 42mm or 46mm | 49mm | 40mm | 1.39 inches | 1.2 inches | 1.2 inches | 1.3 inches | 1.39 inches | 1.9 inches | 
| Touch |  |  |  |  |  |  |  |  |  | 
| Type | Always-On Retina LTPO OLED | Always-On Retina LTPO OLED | LTPO OLED Retina | AMOLED | MIP LCD | MIP | AMOLED | OLED | Super AMOLED | 
Functions | 
| Audio Speaker |  |  |  |  |  |  |  |  |  | 
| Clock |  |  |  |  |  |  |  |  |  | 
| Phone |  |  |  |  |  |  |  |  |  | 
| Vibration |  |  |  |  |  |  |  |  |  | 
| Voice |  |  |  |  |  |  |  |  |  | 
Hardware | 
| Accelerometer |  |  |  |  |  |  |  |  |  | 
| Barometer or Altimeter |  |  |  |  |  |  |  |  |  | 
| Ultraviolet Sensor |  |  |  |  |  |  |  |  |  | 
| Water Resistance | Water resistant up to 50 meters | Water resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810H | 5 ATM (50 Meters) |  | 10 ATM (100 Meters) | 5 ATM | 5 ATM | 5 ATM | 5 ATM (50 Meters) | 
Notifications | 
| Phone |  |  |  |  |  |  |  |  |  | 
| Emails |  |  |  |  |  |  |  |  |  | 
| Texts |  |  |  |  |  |  |  |  |  | 
Software | 
| Operating System | watchOS 11 | WatchOS 10 | WatchOS 8.1 | Android Wear 2 | Garmin Watch OS | Built-in | Wear OS | Wear OS | Wear OS 3.5 | 
| Apps |  |  |  |  |  |  |  |  |  | 
| Music |  |  |  |  |  |  |  |  |  | 
More Information | 
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