Fitbit Alta vs. Garmin Vivosmart HR vs. Garmin Forerunner 45 vs. Michael Kors Access Sofie HR vs. Apple Series 6

 
Alta
Vivosmart HR
Forerunner 45
Access Sofie HR
Series 6
 FitbitAltaRemove Buy NowGarminVivosmart HRRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$170$199$395$399
Release20162015201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days2 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68208 x 208390 x 390384 x 480
Sizen/a1.08 inches1.04 inches1.19 inches40mm
Touchn/a
TypeOLEDn/aLCDOMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM5 ATM0.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aBuilt-inWear OSWatchOS 5
Apps
Music

All Wearables