Polar M600 vs. Moov Now vs. Fitbit Alta HR vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
M600
Now
Alta HR
Forerunner 45
T-Rex
 PolarM600Remove Buy NowMoovNowRemove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$79$150$199$140
Release20162015201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days6 months7 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a128 x 36208 x 208360 x 360
Size1.3 inchesn/a1.4 inches1.04 inches1.3 inches
Touchn/an/a
TypeTFTn/aOLEDLCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aBuilt-inBuild-in
Apps
Music

All Wearables