Fitbit Flex vs. Jawbone UP2 vs. Jawbone UP4 vs. Garmin Forerunner 45 vs. Michael Kors Access Sofie HR

 
Flex
UP2
UP4
Forerunner 45
Access Sofie HR
 FitbitFlexRemove Buy NowJawboneUP2Remove Buy NowJawboneUP4Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$100$100$200$199$395
Release20132015201520192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 daysNA7 days2 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNANANA208 x 208390 x 390
SizeNANANA1.04 inches1.19 inches
TouchNANANA
TypeLEDNANALCDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMSplash resistantNA5 ATM0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNANANABuilt-inWear OS
Apps
MusicNA

All Wearables