Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Fenix 5s Plus vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Apple Watch Ultra

 
Flex 2
645 Music
Fenix 5s Plus
Grayson
Grayson
Watch Ultra
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminFenix 5s PlusRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$450$799$350$350$799
Release201620182018201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days7 days24 hours24 hours36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240240 x 240453 x 454453x454502x410 pixels
Sizen/a1.2 inches1.2 inches1.39 inches1.39 inches1.92 inches
Touchn/a
TypeLEDMIPMIPAMOLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10 ATM1 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearAndroid WearWatchOS 9
Apps
Music

All Wearables