TomTom Spark vs. Polar Loop 2 vs. Fossil Explorist vs. Fitbit Alta HR vs. Polar A370

 
Spark
Loop 2
Explorist
Alta HR
A370
 TomTomSparkRemove Buy NowPolarLoop 2Remove Buy NowFossilExploristRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$150$120$255$150$179.95
Release20152015201820172017

Activity & Fitness

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

Battery

Durationn/a8 days (without notifications)24 hours7 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a454 x454128 x 36160 x 80
Sizen/an/a1.4 inches1.4 inches1.18 inches
Touch
TypeLCDLEDAMOLEDOLEDTFT LCD

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATMIP67WR30

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables