Fitbit Surge vs. Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Polar A370 vs. Garmin Vivosmart 4

 
Surge
Moto 360 (2nd Gen)
M400
A370
Vivosmart 4
 FitbitSurgeRemove Buy NowMotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$250$300$200$179.95$130
Release20162015201420172018

Activity & Fitness

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

Battery

Duration7 days1.5 days8 hours to 30 daysUp to 3 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 325 or 360 x 330n/a160 x 8048 x 128
Size1.26 inches1.37 inches or 1.56 inchesn/a1.18 inches0.74 inches
Touch
TypeMonochrome LCDLCDn/aTFT LCDOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP673 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/a
Apps
Musicn/a

All Wearables