Fitbit Flex 2 vs. Garmin 645 Music vs. Samsung Gear 2 vs. Garmin Vivofit 4 vs. Jawbone UP4

 
Flex 2
645 Music
Gear 2
Vivofit 4
UP4
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGear 2Remove Buy NowGarminVivofit 4Remove Buy NowJawboneUP4Remove Buy Now

Basic Info

Suggested Price$100$450$300$79.95$200
Release20162018201420182015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration5 days7 days2-3 days1 yearNA
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240320 x 32088 x 88NA
Sizen/a1.2 inches1.63 inchesNANA
Touchn/aNA
TypeLEDMIPSuper AMOLEDNANA

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP675 ATMNA

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen OSNA
Apps
MusicNA

All Wearables