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

 
Spark
Alta
Flex 2
One
Loop 2
 TomTomSparkRemove Buy NowFitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowPolarLoop 2Remove Buy Now

Basic Info

Suggested Price$150$130$100$100$120
Release20152016201620122015

Activity & Fitness

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

Battery

Durationn/a5 days5 days10-14 days8 days (without notifications)
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/an/an/an/a
Sizen/an/an/an/an/a
Touchn/an/a
TypeLCDOLEDLEDOLEDLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATMSplast Resistant2 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/an/an/an/an/a
Apps
Music

All Wearables