Pebble Time vs. Polar M400 vs. Polar Loop 2 vs. Fitbit Alta HR vs. Apple Series 6

 
Time
M400
Loop 2
Alta HR
Series 6
 PebbleTimeRemove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowFitbitAlta HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$200$120$150$399
Release20152014201520172020

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days8 days (without notifications)7 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/an/a128 x 36384 x 480
Size1.26 inchesn/an/a1.4 inches40mm
Touch
Typee-papern/aLEDOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM3 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/aWatchOS 5
Apps
Music

All Wearables