Fitbit Alta vs. Fitbit One vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Flex

 
Alta
One
645 Music
Alta HR
Flex
 FitbitAltaRemove Buy NowFitbitOneRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$130$100$450$150$100
Release20162012201820172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240128 x 36NA
Sizen/an/a1.2 inches1.4 inchesNA
Touchn/aNA
TypeOLEDOLEDMIPOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aSplast Resistant5 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aNA
Apps
Music

All Wearables