Fitbit Alta vs. Fitbit Ionic vs. Michael Kors Access Sofie vs. Fitbit Flex vs. Garmin Vivofit 4

 
Alta
Ionic
Access Sofie
Flex
Vivofit 4
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$130$299$395$100$79.95
Release20162017201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days1 day5 days1 year
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250390 x 390 1.19 inchesNA88 x 88
Sizen/a1.42NANA
Touchn/aAMOLDEDNA
TypeOLEDOLEDLEDNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50m1 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSAndroid Wear 2.0NA
Apps
Music

All Wearables