TomTom Spark vs. Fitbit Flex 2 vs. Pebble Core vs. Polar Loop vs. Amazfit GTS

 
Spark
Flex 2
Core
Loop
GTS
 TomTomSparkRemove Buy NowFitbitFlex 2Remove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$150$100$99$100$150
Release20152016201620132019

Activity & Fitness

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

Battery

Durationn/a5 daysNA5 days14 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/an/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/aNANA348 x 442
Sizen/an/aNANA1.65 inches
Touchn/aNA
TypeLCDLEDNALEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/aNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMNA2 ATM5 ATM

Notifications

Phonen/aNA
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/an/aNANAWear OS
Apps
Music

All Wearables