Pebble 2 vs. Polar M400 vs. Motorola Moto 360 (1st Gen) vs. Fitbit Flex vs. Garmin VivoActive 4

 
2
M400
Moto 360 (1st Gen)
Flex
VivoActive 4
 Pebble2Remove Buy NowPolarM400Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitFlexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$129$200$150$100$349
Release20162014201420132019

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days1 day5 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 260NA260 x 260
Sizen/an/a1.56 inchesNA1.3ionches
TouchNA
Typee-papern/aLCDLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM3 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid WearNAWear OS
Apps
MusicNA

All Wearables