Polar M400 vs. Sony SmartBand Talk vs. Apple Watch Series 2 vs. Amazfit Cor

 
M400
SmartBand Talk
Watch Series 2
Cor
 PolarM400Remove Buy NowSonySmartBand TalkRemove Buy NowAppleWatch Series 2Remove Buy NowAmazfitCorRemove Buy Now

Basic Info

Suggested Price$200$170$269$79.99
Release2014201420162018

Activity & Fitness

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

Battery

Duration8 hours to 30 days3 days18 hours12 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a296 x 128340 x 272 or 390 x 31280 x 160
Sizen/a1.4 inches1.5 inches or 1.65 inches1.23 inches
Touch
Typen/aE InkAMOLEDIPS LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatch OS
Apps
Music

All Wearables