Polar M400 vs. Polar Loop 2 vs. Xiaomi Mi Band vs. Fossil Gen 5 Smartwatch Carlyle vs. Garmin VivoActive 4

 
M400
Loop 2
Mi Band
Gen 5 Smartwatch Carlyle
VivoActive 4
 PolarM400Remove Buy NowPolarLoop 2Remove Buy NowXiaomiMi BandRemove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$200$120$15$295$349
Release20142015201520192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 days (without notifications)30 days1 day8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/an/aNA328 x 328260 x 260
Sizen/an/aNA1.3 inches1.3ionches
TouchNA
Typen/aLEDNAAMOLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMIP673 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAWear OSWear OS
Apps
Music

All Wearables