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Price and Release Date | 
| Suggested Price | $799 | $159 | $100 | $799 | $150 | $269 | $300 | $299 | $185 | $329 | 
| Release / Update | 2023 | 2023 | 2022 | 2021 | 2020 | 2022 | 2023 | 2023 | 2018 | 2018 | 
Activity & Fitness | 
| Calories |  |  |  |  |  |  |  |  |  |  | 
| Distance |  |  |  |  |  |  |  |  |  |  | 
| Heart | Third-generation optical heart sensor |  |  |  |  |  |  |  |  |  | 
| VO2max (Oxygen) |  |  |  |  |  |  |  |  |  |  | 
| Sleep |  |  |  |  |  |  |  |  |  |  | 
| Steps |  |  |  |  |  |  |  |  |  |  | 
| Stress mgt |  |  |  |  |  |  |  |  |  |  | 
| Female health |  |  |  |  |  |  |  |  |  |  | 
| Skin temp |  |  |  |  |  |  |  |  |  |  | 
| Breath rate |  |  |  |  |  |  |  |  |  |  | 
Battery | 
| Duration | Up to 36 hours normal use, Up to 72 hours in Low Power Mode | Up to 7 days | 10 days | 50 Days / Solar Charge | 7 days | 11 days | Up to 28 days (45mm) / 21 days (40mm), unlimited with solar | Up to 11 days in smartwatch mode, 5 days with Always-on display, 21 days in battery saver mode, up to 21 hours in GPS mode | 14 days | 14 Days | 
| Rechargeable |  |  |  |  |  |  |  |  |  |  | 
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Compatibility Support | 
| Android |  |  |  |  |  |  |  |  |  |  | 
| iOS |  |  |  |  |  |  |  |  |  |  | 
| Windows Phone |  |  |  |  |  |  |  |  |  |  | 
| Mac |  |  |  |  |  |  |  |  |  |  | 
| Windows |  |  |  |  |  |  |  |  |  |  | 
Connectivity Support | 
| Bluetooth |  |  |  |  |  |  |  |  |  |  | 
| Cellular |  |  |  |  |  |  |  |  |  |  | 
| GPS |  |  |  |  |  |  |  |  |  |  | 
| NFC |  |  |  |  |  |  |  |  |  |  | 
| Wi-Fi |  |  |  |  |  |  |  |  |  |  | 
Display | 
| Color |  |  |  |  |  |  |  |  |  |  | 
| Resolution | 502 x 410 pixels |  | 39,32x18,6 | 280 x 280 | 126 x 294 | 320 x 360 pixels | 176 x 176 pixels (45mm), 156 x 156 pixels (40mm) | 390 x 390 pixels | 454 x 454 | 320 x 300 | 
| Size | 49mm | 1.04-inch AMOLED | 1,46 inches | 1.4 inches | 1.1 inches | 1.41 inches | 0.9” x 0.9” (45mm), 0.79” x 0.79” (40mm) | 1.2" | 1.39 inches | 1.4 inches | 
| Touch |  |  |  |  |  |  |  |  |  |  | 
| Type | Always-On Retina LTPO OLED | AMOLED | AMOLED | MIP LCD | AMOLED | AMOLED | MIP | AMOLED | AMOLED | TFT LCD | 
Functions | 
| Audio Speaker |  |  |  |  |  |  |  |  |  |  | 
| Clock |  |  |  |  |  |  |  |  |  |  | 
| Phone |  |  |  |  |  |  |  |  |  |  | 
| Vibration |  |  |  |  |  |  |  |  |  |  | 
| Voice |  |  |  |  |  |  |  |  |  |  | 
Hardware | 
| Accelerometer |  |  |  |  |  |  |  |  |  |  | 
| Barometer or Altimeter |  |  |  |  |  |  |  |  |  |  | 
| Ultraviolet Sensor |  |  |  |  |  |  |  |  |  |  | 
| Water Resistance | Water resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810H | Water-resistant up to 50m | 5 ATM (50 Meters) | 10 ATM (100 Meters) | 5 ATM | 5 ATM (50 Meters) | 10 ATM (100 Meters) | 5 ATM (50 Meters) | 5 ATM | 10 ATM (100 Meters) | 
Notifications | 
| Phone |  |  |  |  |  |  |  |  |  |  | 
| Emails |  |  |  |  |  |  |  |  |  |  | 
| Texts |  |  |  |  |  |  |  |  |  |  | 
Software | 
| Operating System | WatchOS 10 | Fitbit OS | Fitbit OS | Built-in | Built-in | Garmin Watch OS | Garmin Watch OS | Garmin Watch OS | Lite OS | Built-in | 
| Apps |  |  |  |  |  |  |  |  |  |  | 
| Music |  |  |  |  |  |  |  |  |  |  | 
More Information | 
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