Fitbit Alta vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Versa 2 vs. Apple Series 6

 
Alta
645 Music
Alta HR
Versa 2
Series 6
 FitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitVersa 2Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$450$150$199$399
Release20162018201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days7 days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240128 x 36300 x 300384 x 480
Sizen/a1.2 inches1.4 inches1.34 inches40mm
Touchn/a
TypeOLEDMIPOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aBuild-inWatchOS 5
Apps
Music

All Wearables