Fitbit Flex 2 vs. Fitbit One vs. Garmin 645 Music vs. Michael Kors Access Sofie HR vs. Apple Series 6

 
Flex 2
One
645 Music
Access Sofie HR
Series 6
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$100$450$395$399
Release20162012201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days7 days2 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240390 x 390384 x 480
Sizen/an/a1.2 inches1.19 inches40mm
Touchn/a
TypeLEDOLEDMIPOMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMSplast Resistant5 ATM0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWatchOS 5
Apps
Music

All Wearables