Garmin Forerunner 735XT vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Vivoactive 3 vs. Fitbit Alta HR

 
Forerunner 735XT
Flex 2
645 Music
Vivoactive 3
Alta HR
 GarminForerunner 735XTRemove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivoactive 3Remove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$450$100$450$299$150
Release20162016201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 days7 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution215 x 180n/a240 x 240240 x 240128 x 36
Size1.23 inchesn/a1.2 inches1.2 inches1.4 inches
Touchn/an/a
Typen/aLEDMIPMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/a
Apps
Music

All Wearables