Polar M400 vs. Samsung Gear S vs. Polar M430 vs. Polar A370 vs. Garmin Vivosmart 4

 
M400
Gear S
M430
A370
Vivosmart 4
 PolarM400Remove Buy NowSamsungGear SRemove Buy NowPolarM430Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$250$255$179.95$130
Release20142013201720172018

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a30 hoursUp to 3 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 360128x128160 x 8048 x 128
Sizen/a2 inches1.4 inch1.18 inches0.74 inches
Touch
Typen/aSuper AMOLEDLCDTFT LCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP67WR30WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizen
Apps
Music

All Wearables