Apple Watch Series 3 vs. TomTom Spark vs. Fitbit Flex 2 vs. Polar Loop 2 vs. Fitbit Ionic

 
Watch Series 3
Spark
Flex 2
Loop 2
Ionic
 AppleWatch Series 3Remove Buy NowTomTomSparkRemove Buy NowFitbitFlex 2Remove Buy NowPolarLoop 2Remove Buy NowFitbitIonicRemove Buy Now

Basic Info

Suggested Price$329$150$100$120$299
Release20172015201620152017

Activity & Fitness

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

Battery

Duration18 hoursn/a5 days8 days (without notifications)4+ days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolution340 x 272 or 390 x 312n/an/an/a348x250
Size1.5 inches or 1.65 inchesn/an/an/a1.42
Touchn/a
TypeAMOLEDLCDLEDLEDOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM2 ATM50m

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemWatchOS 4n/an/an/aFitbit OS
Apps
Music

All Wearables