Pebble Time Round vs. TomTom Spark vs. Garmin 645 Music vs. Garmin Vivosmart 3 vs. Polar A370

 
Time Round
Spark
645 Music
Vivosmart 3
A370
 PebbleTime RoundRemove Buy NowTomTomSparkRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 3Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$200$150$450$139.99$179.95
Release20152015201820172017

Activity & Fitness

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

Battery

Duration2 daysn/a7 days5 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 24064 x 128160 x 80
Sizeroundn/a1.2 inchesNA1.18 inches
Touch
Typee-paperLCDMIPOLEDTFT LCD

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATM5 ATMWR30

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemPebble OSn/a
Apps
Music

All Wearables