Polar M600 vs. Fitbit Alta vs. Garmin 645 Music vs. Fitbit Alta HR vs. Jaybird Reign

 
M600
Alta
645 Music
Alta HR
Reign
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowJaybirdReignRemove Buy Now

Basic Info

Suggested Price$330$130$450$150$150
Release20162016201820172015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a240 x 240128 x 36NA
Size1.3 inchesn/a1.2 inches1.4 inchesNA
Touchn/an/aNA
TypeTFTOLEDMIPOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATMNA

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/aNA
Apps
Music

All Wearables