Pebble Time vs. Pebble Time Round vs. TomTom Spark vs. Polar A370 vs. Polar Loop

 
Time
Time Round
Spark
A370
Loop
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowTomTomSparkRemove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$150$200$150$179.95$100
Release20152015201520172013

Activity & Fitness

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

Battery

Duration7 days2 daysn/aUp to 3 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144n/an/a160 x 80NA
Size1.26 inchesroundn/a1.18 inchesNA
Touch
Typee-papere-paperLCDTFT LCDLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX75 ATMWR302 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemPebble OSPebble OSn/aNA
Apps
Music

All Wearables