Garmin 645 Music vs. Samsung Galaxy Watch vs. Samsung Gear 2 vs. Garmin Vivofit 4 vs. Apple Watch Ultra
 | | | | | |
| Garmin645 MusicRemove Buy Now | SamsungGalaxy WatchRemove Buy Now | SamsungGear 2Remove Buy Now | GarminVivofit 4Remove Buy Now | AppleWatch UltraRemove Buy Now |
Basic Info | |||||
| Suggested Price | $450 | $330 | $300 | $79.95 | $799 |
| Release | 2018 | 2018 | 2014 | 2018 | 2022 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | NA | ||||
| Swim | |||||
Battery | |||||
| Duration | 7 days | 7 days | 2-3 days | 1 year | 36 hrs |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | NA | ||||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | NA | ||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 240 x 240 | 360 x 360 | 320 x 320 | 88 x 88 | 502x410 pixels |
| Size | 1.2 inches | 1.2 inches or 1.3 inches | 1.63 inches | NA | 1.92 inches |
| Touch | |||||
| Type | MIP | AMOLED | Super AMOLED | NA | |
Functions | |||||
| Audio Speaker | Bluetooth | ||||
| Clock | LTPO OLED Retina | ||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | 5 ATM | IP67 | 5 ATM | 10 ATM (100 Meters) |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Tizen OS | Tizen OS | WatchOS 9 | ||
| Apps | |||||
| Music | Spotify | ||||