Fitbit Alta vs. Garmin Vivosmart HR vs. Polar Loop 2 vs. Garmin Forerunner 45 vs. Michael Kors Access Sofie HR

 
Alta
Vivosmart HR
Loop 2
Forerunner 45
Access Sofie HR
 FitbitAltaRemove Buy NowGarminVivosmart HRRemove Buy NowPolarLoop 2Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$130$170$120$199$395
Release20162015201520192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days8 days (without notifications)7 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68n/a208 x 208390 x 390
Sizen/a1.08 inchesn/a1.04 inches1.19 inches
Touchn/a
TypeOLEDn/aLEDLCDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM2 ATM5 ATM0.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/aBuilt-inWear OS
Apps
Music

All Wearables