| Epson ProSense 57 | |
 | |
| Tech specs | |
| Size | 47.0 x 47.0 x 15.5 mm |
| Material | Lens Material:Plastic Band:Urethane |
| Charging | USB |
| Battery | Lithium ion |
| Battery life | GPS: Up to 13 hours 7 days activity tracking, 30 days Watch Mode |
| Water-resistance | 5 ATM (50m) |
| Weight | 41 grams |
| Sensor | GPS, integrated heart rate sensor, 3-axis accelerometer |
| Display | LCD, 128 x 128 pixel resolution |
| Screen size | 1.1" |
| Colors | Black, kale green and red. |
| Other | PLATFORM: N/A PROCESSOR: N/A MEMORY: Up to the lesser of 64 workouts or 2,000 laps CONNECTIVITY: Bluetooth |
| Activity tracking | |
| Steps | Yes |
| Distance | Yes |
| Calories burned | Yes |
| Activity | Yes |
| Floors | |
| Sleep | Yes |
| Heart rate | Yes |
| Stress & recovery | |
| Pulse Ox | |
| Respiration rate | |
| UV exposure | |
| Skin temperature | |
| Galvanic skin response | |
| Hydration level | |
| Calorie intake | |
| GPS | Yes |
| Running features | Basic Metrics: Distance, time, pace, speed, calories Advanced Metrics: Stride length, cadence, training effect, VO2 max, race time estimates Training: Intervals, race mode, customizable workout displays |
| Swimming features | |
| Other | - Time/date, alarm clock, stopwatch, music control - Sport Modes: Walking, Treadmill |
| Non-fitness functions | |
| Smartphone notifications | Yes |
| On-board music storage | |
| Connected pay | |
| LTE | |
| Links | |
| Affiliate link* | Amazon |
| Read more |
**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.