Fitbit Charge 2 vs. Garmin Vivosmart HR vs. Michael Kors Access Sofie vs. Polar A370 vs. Garmin Vivosmart 4

 
Charge 2
Vivosmart HR
Access Sofie
A370
Vivosmart 4
 FitbitCharge 2Remove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsAccess SofieRemove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$170$395$179.95$130
Release20162015201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days1 dayUp to 3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68390 x 390 1.19 inches160 x 8048 x 128
Sizen/a1.08 inches1.18 inches0.74 inches
Touchn/aAMOLDED
TypeOLEDn/aTFT LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0
Apps
Music

All Wearables