Pebble Time Round vs. Polar M400 vs. Withings Go vs. Fitbit Ionic vs. Polar Loop

 
Time Round
M400
Go
Ionic
Loop
 PebbleTime RoundRemove Buy NowPolarM400Remove Buy NowWithingsGoRemove Buy NowFitbitIonicRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$200$80$299$100
Release20152014201620172013

Activity & Fitness

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

Battery

Duration2 days8 hours to 30 days8 months4+ days5 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/an/aNA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a348x250NA
Sizeroundn/an/a1.42NA
Touchn/a
Typee-papern/aE-InkOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX73 ATM5 ATM50m2 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemPebble OSn/an/aFitbit OSNA
Appsn/a
Music

All Wearables