TomTom Spark vs. Xiaomi Mi Band 2 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin VivoActive 4

 
Spark
Mi Band 2
645 Music
Alta HR
VivoActive 4
 TomTomSparkRemove Buy NowXiaomiMi Band 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$150$23$450$150$349
Release20152016201820172019

Activity & Fitness

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

Battery

Durationn/a20 hours7 days7 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240128 x 36260 x 260
Sizen/a0.42 inches1.2 inches1.4 inches1.3ionches
Touch
TypeLCDOLEDMIPOLEDMIP

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables