Fitbit Alta vs. Amazfit Stratos vs. Amazfit Bip vs. Michael Kors Access Sofie vs. Garmin Vivofit 4

 
Alta
Stratos
Bip
Access Sofie
Vivofit 4
 FitbitAltaRemove Buy NowAmazfitStratosRemove Buy NowAmazfitBipRemove Buy NowMichael KorsAccess SofieRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$130$199$99.99$395$79.95
Release20162018201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days30 days1 day1 year
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300176 x 176390 x 390 1.19 inches88 x 88
Sizen/a1.34 inches1.28 inchesNA
Touchn/aAMOLDED
TypeOLEDOLEDNANA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP681 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aProprietaryAndroid Wear 2.0
Apps
Music

All Wearables