Pebble Steel vs. Polar M600 vs. Fitbit Alta HR vs. Fitbit Flex

 
Steel
M600
Alta HR
Flex
 PebbleSteelRemove Buy NowPolarM600Remove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$330$150$100
Release2014201620172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days2 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144240 x 240128 x 36NA
Size1.26 inches1.3 inches1.4 inchesNA
Touchn/aNA
Typee-paperTFTOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX81 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSAndroid WearNA
Apps
Music

All Wearables