Polar M400 vs. Samsung Gear S2 vs. Mobvoi TicWatch S vs. Mobvoi TicWatch e2 vs. Garmin Vivosmart 4

 
M400
Gear S2
TicWatch S
TicWatch e2
Vivosmart 4
 PolarM400Remove Buy NowSamsungGear S2Remove Buy NowMobvoiTicWatch SRemove Buy NowMobvoiTicWatch e2Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$300$199$200$130
Release20142015201720192018

Activity & Fitness

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

Battery

Duration8 hours to 30 days2-3 days1.5-2 days1 day7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 360400 x 400360 x 36048 x 128
Sizen/a1.2 inches1.4 inches1.2 inches0.74 inches
Touch
Typen/aSuper AMOLEDOLEDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP68IP67IP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenAndroid Wear 2.0Wear OS
Apps
Music

All Wearables