Polar M400 vs. Polar Loop 2 vs. Sony SmartBand Talk vs. Garmin Forerunner 235 vs. Fitbit Flex

 
M400
Loop 2
SmartBand Talk
Forerunner 235
Flex
 PolarM400Remove Buy NowPolarLoop 2Remove Buy NowSonySmartBand TalkRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$120$170$299.99$100
Release20142015201420172013

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 days (without notifications)3 days9 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a296 x 128215 x 180NA
Sizen/an/a1.4 inches1.23 inchesNA
TouchNA
Typen/aLEDE InkMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMIP685 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNA
Apps
Music

All Wearables