| Polar A370 | |
 | |
| Tech specs | |
| Size | Thickness: 13.5 mm Width: 23.5 mm |
| Material | Soft Silicone or Polyurethane (TPU) wristband |
| Charging | Micro USB |
| Battery | 110 mAh Lithium-polymer battery |
| Battery life | Up to 12 hours of training with mobile GPS 4 days of activity tracking with continuous heart rate and 1 h of training per day |
| Water-resistance | WR30 |
| Weight | 31.7g (S), 37.3g (M/L) |
| Sensor | 3d-accelerometer, heart rate monitor |
| Display | Wide-viewing angle full color TFT display with capacitive touchscreen Screen resolution 80 x 160 pixels (RGB) |
| Screen size | 13mm x 27mm |
| Colors | Available in 6 colors. |
| Other | |
| Activity tracking | |
| Steps | Yes |
| Distance | Yes |
| Calories burned | Yes |
| Activity | Yes |
| Floors | |
| Sleep | Yes |
| Heart rate | Yes |
| Vo2Max | |
| Stress & recovery | |
| UV exposure | |
| Skin temperature | |
| Galvanic skin response | |
| Hydration level | |
| Calorie intake | |
| GPS | taps into the GPS on your phone |
| Running features | |
| Swimming features | |
| Other | Inactivity alert, Vibration alerts, Alarm, Sport profiles |
| Non-fitness functions | |
| Smartphone notifications | Yes |
| On-board music storage | |
| Connected pay | |
| Links | |
| Affiliate link* | Amazon |
| Read more | Article |
**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.