Fitbit Charge 2 vs. Garmin 645 Music vs. Fitbit Flex vs. Jawbone UP4 vs. Apple Series 6

 
Charge 2
645 Music
Flex
UP4
Series 6
 FitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowJawboneUP4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$450$100$200$399
Release20162018201320152020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 daysNANot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NANA384 x 480
Sizen/a1.2 inchesNANA40mm
Touchn/aNANA
TypeOLEDMIPLEDNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM1 ATMNA

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWatchOS 5
Apps
MusicNA

All Wearables