Casio WSD-F10 vs. Polar M400 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Apple Watch Ultra
 | | | | | |
| CasioWSD-F10Remove Buy Now | PolarM400Remove Buy Now | FitbitAltaRemove Buy Now | AppleWatch Series 2Remove Buy Now | AppleWatch UltraRemove Buy Now |
Basic Info | |||||
| Suggested Price | $500 | $200 | $130 | $269 | $799 |
| Release | 2016 | 2014 | 2016 | 2016 | 2022 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | n/a | |||
| Oxygen | n/a | ||||
| Sleep | n/a | ||||
| Steps | |||||
| Swim | n/a | ||||
Battery | |||||
| Duration | n/a | 8 hours to 30 days | 5 days | 18 hours | 36 hrs |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | n/a | ||||
| Windows Phone | n/a | n/a | |||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | n/a | ||||
| Cellular | n/a | ||||
| GPS | |||||
| NFC | n/a | ||||
| Wi-Fi | n/a | ||||
Display | |||||
| Color | |||||
| Resolution | n/a | n/a | n/a | 340 x 272 or 390 x 312 | 502x410 pixels |
| Size | n/a | n/a | n/a | 1.5 inches or 1.65 inches | 1.92 inches |
| Touch | n/a | n/a | |||
| Type | LCD | n/a | OLED | AMOLED | |
Functions | |||||
| Audio Speaker | n/a | Alerts only | |||
| Clock | LTPO OLED Retina | ||||
| Phone | n/a | ||||
| Vibration | |||||
| Voice | n/a | ||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | 5 ATM | 3 ATM | n/a | 5ATM | 10 ATM (100 Meters) |
Notifications | |||||
| Phone | n/a | ||||
| Emails | n/a | n/a | |||
| Texts | n/a | ||||
Software | |||||
| Operating System | Android Wear | n/a | n/a | Watch OS | WatchOS 9 |
| Apps | n/a | ||||
| Music | n/a | ||||