Pebble Steel vs. Polar M430 vs. Amazfit Cor vs. Fitbit Alta HR vs. Fitbit Flex

 
Steel
M430
Cor
Alta HR
Flex
 PebbleSteelRemove Buy NowPolarM430Remove Buy NowAmazfitCorRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$255$79.99$150$100
Release20142017201820172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days30 hours12 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144128x12880 x 160128 x 36NA
Size1.26 inches1.4 inch1.23 inches1.4 inchesNA
TouchNA
Typee-paperLCDIPS LCDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR305 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSNA
Apps
Music

All Wearables