Polar M600 vs. Fitbit Flex 2 vs. Xiaomi Mi Band 2 vs. Fitbit Alta HR vs. Amazfit GTR

 
M600
Flex 2
Mi Band 2
Alta HR
GTR
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowXiaomiMi Band 2Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$330$100$23$150$199
Release20162016201620172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Stepsn/a
Swim

Battery

Duration2 days5 days20 hours7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/an/a128 x 36454 x 454
Size1.3 inchesn/a0.42 inches1.4 inches1.39 inches
Touchn/an/a
TypeTFTLEDOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aBuild-in
Apps
Music

All Wearables