Fitbit Blaze vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Forerunner 45

 
Blaze
Flex 2
645 Music
Alta HR
Forerunner 45
 FitbitBlazeRemove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$200$100$450$150$199
Release20162016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days5 days7 days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240128 x 36208 x 208
Sizen/an/a1.2 inches1.4 inches1.04 inches
Touchn/a
TypeLCDLEDMIPOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuilt-in
Apps
Music

All Wearables