Polar M600 vs. Microsoft Band 2 vs. Fitbit Alta HR vs. Amazfit T-Rex

 
M600
Band 2
Alta HR
T-Rex
 PolarM600Remove Buy NowMicrosoftBand 2Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$250$150$140
Release2016201520172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days48 hours (without GPS)7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240320 x 128128 x 36360 x 360
Size1.3 inches1.36 inches1.4 inches1.3 inches
Touchn/a
TypeTFTCapacitative TFTOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IPX75 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aBuild-in
Apps
Music

All Wearables