Fitbit Charge 2 vs. Fitbit Flex 2 vs. Fitbit Zip vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4

 
Charge 2
Flex 2
Zip
Access Sofie HR
Vivosmart 4
 FitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowFitbitZipRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$100$60$395$130
Release20162016201220192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days6 months2 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a390 x 39048 x 128
Sizen/an/an/a1.19 inches0.74 inches
Touchn/an/a
TypeOLEDLEDn/aOMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMSplash Resistant0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWear OS
Apps
Music

All Wearables