Epson Pulsense PS 100
Tech specs 
Size4.1cm x 9.1cm x 18.0cm
MaterialSilicone
ChargingYes
BatteryLithium ion battery
Battery life1.5 days
Water-resistanceRain and sweat proof
Weight31 grams
Sensor3 axis accelerometer, heart rate sensor
DisplayLED Lights
Screen size
ColorsBlack, Teal
Other
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rateYes
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
GPS
Running features
Swimming features
Smartphone notifications
Other
Links 
View onAmazon
Amazon US rating3.0 out of 5 stars
Read moreReview