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

 
Alta
Flex 2
Access Sofie
UP4
Loop
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowJawboneUP4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$130$100$395$200$100
Release20162016201720152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days1 dayNA5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a390 x 390 1.19 inchesNANA
Sizen/an/aNANA
Touchn/an/aAMOLDEDNA
TypeOLEDLEDNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATMNA2 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0NANA
Apps
MusicNA

All Wearables