Polar M600
Tech specs 
Size45x36x13mm
MaterialSilicone, Gorilla Glass
ChargingUSB
Battery500mAh
Battery life2 days / 8 hours of training (with Android phone), 1 day / 8 hours of training (with iPhone)
Water-resistanceSuitable for swimming, 10 meters, IPX8
Weight63 grams
SensorOptical heart rate measurement with 6 LEDs, Accelerometer, Ambient Light Sensor, Gyroscope, Vibration motor, Microphone
Display260ppi transmissive TFT display, Corning® Gorilla® Glass 3
Screen size1,30", 240 x 240 pixels
ColorsBlack, Pink, White, Blue
OtherAndroid Wear OS
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rateYes
Vo2MaxYes
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
GPSYes
Running features
Swimming features
Smartphone notificationsYes
Other Works with smartphones running Android 4.3 or higher, or iPhone 5 or later running iOS 8.2 or higher.
Running program, HR zones, training load, recovery status, speed/pace, training history, training targets.
Links 
Affiliate link*Amazon
Read moreArticle
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**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.