Pebble Time Round vs. Misfit Ray vs. Polar Loop 2 vs. Garmin 645 Music vs. Garmin Vivofit 4

 
Time Round
Ray
Loop 2
645 Music
Vivofit 4
 PebbleTime RoundRemove Buy NowMisfitRayRemove Buy NowPolarLoop 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$200$100$120$450$79.95
Release20152016201520182018

Activity & Fitness

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

Battery

Duration2 days6 months8 days (without notifications)7 days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a240 x 24088 x 88
Sizeroundn/an/a1.2 inchesNA
Touchn/a
Typee-paperLEDLEDMIPNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM2 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/a
Apps
Music

All Wearables