Coros APEX 4 vs Polar Pacer
| Physical | ||
|---|---|---|
| Case diameter | — | — |
| Case thickness | — | — |
| Weight | 64 g | 40 g |
| Case material | — | — |
| Bezel material | Titanium | — |
| Lens / crystal | — | — |
| Strap material | Silicone / Nylon | — |
| Strap width | — | — |
| Colors available | — | — |
| Water resistance | 50 m | — |
| Military standard | — | — |
| Display | ||
| Display type | MIP (transflective) | — |
| Display diagonal | 33.02 mm | — |
| Resolution width | 260 px | — |
| Resolution height | 260 px | — |
| Touchscreen | Yes | No |
| Always-on display | Yes | No |
| Max brightness | — | — |
| Battery | ||
| Smartwatch mode | — | — |
| GPS-only mode | — | — |
| All-systems GPS mode | 65 h | — |
| Max battery saver mode | — | — |
| Charging type | — | — |
| Solar charging | No | No |
| Wireless charging | No | No |
| Positioning | ||
| GNSS systems | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, GLONASS, Galileo, QZSS |
| Multi-band / dual-frequency | Yes | No |
| Offline maps | No | No |
| Built-in maps | No | No |
| Turn-by-turn navigation | No | No |
| Sensors | ||
| Optical heart rate | Yes | Yes |
| ECG | Yes | No |
| SpO2 / pulse oximeter | Yes | No |
| Skin temperature | No | No |
| Accelerometer | No | No |
| Gyroscope | No | No |
| Compass | Yes | No |
| Barometric altimeter | Yes | No |
| Ambient thermometer | No | No |
| Microphone | No | No |
| Speaker | No | No |
| Connectivity | ||
| Bluetooth | No | No |
| Wi-Fi | Yes | No |
| NFC payments | No | No |
| Cellular / LTE | No | No |
| ANT+ | No | No |
| Music storage | Yes | No |
| Third-party apps | No | No |
| Satellite communication | No | No |
| Health & Fitness | ||
| Sleep tracking | Yes | Yes |
| Stress tracking | Yes | No |
| HRV tracking | Yes | No |
| Training load | Yes | Yes |
| Training readiness / recovery | Yes | No |
| VO2 max estimate | Yes | Yes |
| Running dynamics | No | No |
| Body battery / energy score | No | No |
| Menstrual cycle tracking | No | No |
| Fall / incident detection | No | No |
| Guided workouts | No | No |
| Multisport / triathlon mode | Yes | Yes |
| Software | ||
| Operating system | — | — |
| Companion app | — | — |
| Voice assistant | — | — |
| Contactless payments | No | No |
