Fitbit Flex 2 vs. Garmin Fenix 5s vs. Garmin 645 Music vs. Garmin Chronos vs. Fitbit Flex

 
Flex 2
Fenix 5s
645 Music
Chronos
Flex
 FitbitFlex 2Remove Buy NowGarminFenix 5sRemove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$100$599.99$450$1500$100
Release20162017201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 9 days7 days8 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a218x 218240 x 240218 x 218NA
Sizen/a1.1 inches1.2 inches1.2 inchesNA
Touchn/aNA
TypeLEDnaMIPMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM10ATM5 ATM10 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNA
Apps
Music

All Wearables