Amazfit Arc vs. Motorola Moto 360 (1st Gen) vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Garmin Vivosmart 4

 
Arc
Moto 360 (1st Gen)
Flex
Forerunner 45
Vivosmart 4
 AmazfitArcRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$69.99$150$100$199$130
Release20162014201320192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days1 day5 days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution72 x40320 x 260NA208 x 20848 x 128
Size0.42 inches1.56 inchesNA1.04 inches0.74 inches
TouchNA
TypeOLEDLCDLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP671 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNABuilt-in
Apps
MusicNA

All Wearables