Fitbit Flex 2 vs. Michael Kors Access Sofie vs. Fitbit Flex vs. Jawbone UP4 vs. Polar Loop

 
Flex 2
Access Sofie
Flex
UP4
Loop
 FitbitFlex 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitFlexRemove Buy NowJawboneUP4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$395$100$200$100
Release20162017201320152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day5 daysNA5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a390 x 390 1.19 inchesNANANA
Sizen/aNANANA
Touchn/aAMOLDEDNANA
TypeLEDLEDNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM1 ATMNA2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NANANA
Apps
MusicNA

All Wearables