TomTom Spark vs. Fitbit One vs. Polar Loop 2 vs. Fitbit Ionic vs. Fitbit Flex

 
Spark
One
Loop 2
Ionic
Flex
 TomTomSparkRemove Buy NowFitbitOneRemove Buy NowPolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$100$120$299$100
Release20152012201520172013

Activity & Fitness

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

Battery

Durationn/a10-14 days8 days (without notifications)4+ days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a348x250NA
Sizen/an/an/a1.42NA
TouchNA
TypeLCDOLEDLEDOLEDLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant2 ATM50m1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aFitbit OSNA
Apps
Music

All Wearables