Fitbit One vs. Fitbit Alta HR vs. Polar Loop vs. Michael Kors Access Sofie HR vs. Garmin VivoActive 4

 
One
Alta HR
Loop
Access Sofie HR
VivoActive 4
 FitbitOneRemove Buy NowFitbitAlta HRRemove Buy NowPolarLoopRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$150$100$395$349
Release20122017201320192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days7 days5 days2 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 36NA390 x 390260 x 260
Sizen/a1.4 inchesNA1.19 inches1.3ionches
Touch
TypeOLEDOLEDLEDOMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant2 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSWear OS
Apps
Music

All Wearables