Epson Runsense SF-710
Tech specs 
SizeWidth: 44.2 mm
Thickness: 13.6 mm
MaterialPlastic
ChargingUSB
Battery
Battery lifeBattery life GPS off 20 days
Battery Life GPS on 30 Hours
Water-resistance5 ATM
Weight60 grams
SensorAccelerometer, Altimeter, GPS
DisplayLCD, 128 x 96 pixel
Screen size28.2mm
ColorsBlack, Blue, Green
OtherMemory: 400 laps
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
Floors
Sleep
Heart rateConnects to Bluetooth Heart Rate chest strap
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running featuresMeasures route, pace, distance, altitude.Automatic cadence and stride length measurement. Waypoints, Interval Training, Lap Timer and more.
Swimming features
Other Supports popular running apps including Strava, MapMyRun, Runkeeper.
Non-fitness functions 
Smartphone notifications
On-board music storage
Connected pay
Links 
Affiliate link*Amazon
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