Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Fenix 5X vs. Fitbit Charge 3 vs. Garmin Vivosmart 3

 
Flex 2
645 Music
Fenix 5X
Charge 3
Vivosmart 3
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminFenix 5XRemove Buy NowFitbitCharge 3Remove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$100$450$699$150$139.99
Release20162018201720182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 daysUp to 12 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240240 x24066 x 1864 x 128
Sizen/a1.2 inches1.2 inches.721 inchesNA
Touchn/a
TypeLEDMIPNAOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables