TomTom Spark vs. Garmin Vivosmart HR vs. ASUS ZenWatch 3 vs. Fitbit Flex vs. Garmin Forerunner 45

 
Spark
Vivosmart HR
ZenWatch 3
Flex
Forerunner 45
 TomTomSparkRemove Buy NowGarminVivosmart HRRemove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$150$170$229$100$199
Release20152015201720132019

Activity & Fitness

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

Battery

Durationn/a5 days48 hours5 days7 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 68400 x 400NA208 x 208
Sizen/a1.08 inches1.39 inchesNA1.04 inches
TouchNA
TypeLCDn/aAMOLEDLEDLCD

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid Wear 2NABuilt-in
Apps
Music

All Wearables