Microsoft Band 2 vs. Polar Loop 2 vs. Fitbit Ionic vs. Garmin 645 Music vs. Garmin VivoActive 4

 
Band 2
Loop 2
Ionic
645 Music
VivoActive 4
 MicrosoftBand 2Remove Buy NowPolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$250$120$299$450$349
Release20152015201720182019

Activity & Fitness

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

Battery

Duration48 hours (without GPS)8 days (without notifications)4+ days7 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 128n/a348x250240 x 240260 x 260
Size1.36 inchesn/a1.421.2 inches1.3ionches
Touch
TypeCapacitative TFTLEDOLEDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX72 ATM50m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aFitbit OSWear OS
Apps
Music

All Wearables