Polar M400 vs. Samsung Gear S2 vs. Huawei Talkband B2 vs. Fitbit Charge 3 vs. Fitbit Sense 2

 
M400
Gear S2
Talkband B2
Charge 3
Sense 2
 PolarM400Remove Buy NowSamsungGear S2Remove Buy NowHuaweiTalkband B2Remove Buy NowFitbitCharge 3Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$200$300$180$150$300
Release20142015201520182022

Activity & Fitness

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

Battery

Duration8 hours to 30 days2-3 days3 days7 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFCNA
Wi-Fi

Display

Color
Resolutionn/a360 x 360128 x 8866 x 18336x336
Sizen/a1.2 inches0.73 inches.721 inches1.59 inches
Touch
Typen/aSuper AMOLEDPMOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP68IP575 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenn/aNA
Apps
Music

All Wearables