TomTom Spark vs. Fitbit Flex 2 vs. Garmin Vivofit 4 vs. Polar Loop vs. HTC re Grip

 
Spark
Flex 2
Vivofit 4
Loop
re Grip
 TomTomSparkRemove Buy NowFitbitFlex 2Remove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$150$100$79.95$100$199
Release20152016201820132020

Activity & Fitness

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

Battery

Durationn/a5 days1 year5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/a88 x 88NA160 x 32
Sizen/an/aNANA1.8 inches
Touchn/a
TypeLCDLEDNALEDPMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM2 ATMIP57

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables