TomTom Spark vs. Polar Loop 2 vs. Fitbit Charge vs. Garmin Vivofit 4 vs. Michael Kors Access Sofie HR

 
Spark
Loop 2
Charge
Vivofit 4
Access Sofie HR
 TomTomSparkRemove Buy NowPolarLoop 2Remove Buy NowFitbitChargeRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$150$120$130$79.95$395
Release20152015201420182019

Activity & Fitness

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

Battery

Durationn/a8 days (without notifications)7-10 days1 year2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNA88 x 88390 x 390
Sizen/an/aNANA1.19 inches
TouchNA
TypeLCDLEDOLEDNAOMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM1 ATM5 ATM0.3 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNAWear OS
Apps
Music

All Wearables