Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Samsung Gear S vs. Fitbit Zip vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
M400
Gear S
Zip
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowSamsungGear SRemove Buy NowFitbitZipRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$200$250$60$140
Release20152014201320122019

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 daysn/a6 months20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a480 x 360n/a360 x 360
Size1.37 inches or 1.56 inchesn/a2 inchesn/a1.3 inches
Touch
TypeLCDn/aSuper AMOLEDn/aAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATMIP67Splash Resistant5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aTizenn/aBuild-in
Apps
Musicn/a

All Wearables