TomTom Spark vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Michael Kors Access Sofie HR vs. Apple Watch Ultra

 
Spark
Flex 2
645 Music
Access Sofie HR
Watch Ultra
 TomTomSparkRemove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$100$450$395$799
Release20152016201820192022

Activity & Fitness

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

Battery

Durationn/a5 days7 days2 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/a240 x 240390 x 390502x410 pixels
Sizen/an/a1.2 inches1.19 inches1.92 inches
Touchn/a
TypeLCDLEDMIPOMOLED

Functions

Audio SpeakerBluetooth
ClockLTPO OLED Retina
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM0.3 ATM10 ATM (100 Meters)

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aWear OSWatchOS 9
Apps
Music

All Wearables