Fitbit Charge 2 vs. Fitbit One vs. Garmin 645 Music vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4

 
Charge 2
One
645 Music
Access Sofie HR
Vivosmart 4
 FitbitCharge 2Remove Buy NowFitbitOneRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$100$450$395$130
Release20162012201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days7 days2 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240390 x 39048 x 128
Sizen/an/a1.2 inches1.19 inches0.74 inches
Touchn/a
TypeOLEDOLEDMIPOMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aSplast Resistant5 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables