Polar Loop 2 vs. Amazfit Arc vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Apple SE (2022)
 | | | | | |
| PolarLoop 2Remove Buy Now | AmazfitArcRemove Buy Now | CasioWSD-F20ARemove Buy Now | AppleWatch Series 4Remove Buy Now | AppleSE (2022)Remove Buy Now |
Basic Info | |||||
| Suggested Price | $120 | $69.99 | $399 | $329 | $249 |
| Release | 2015 | 2016 | 2018 | 2018 | 2022 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 8 days (without notifications) | 20 days | 1 day | Not Yet | Not yet |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | ||||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | 368 x 448 pixels | ||||
| Resolution | n/a | 72 x40 | 320 x 320 | 384 x 480 | 40mm |
| Size | n/a | 0.42 inches | 1.32 inches | 1.78 inches | |
| Touch | LTPO OLED Retina | ||||
| Type | LED | OLED | LCD | MicroLED | |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | 5 ATM | ||||
| Ultraviolet Sensor | |||||
| Water Resistance | 2 ATM | IP67 | 5 ATM | Not Yet | |
Notifications | |||||
| Phone | |||||
| Emails | WatchOS 8.1 | ||||
| Texts | |||||
Software | |||||
| Operating System | n/a | Wear OS | Watch OS 5 | ||
| Apps | |||||
| Music | |||||