Polar V800 vs. Microsoft Band 2 vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Amazfit GTR

 
V800
Band 2
645 Music
Forerunner 45
GTR
 PolarV800Remove Buy NowMicrosoftBand 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$470$250$450$199$199
Release20142015201820192019

Activity & Fitness

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

Battery

Duration13 hours to 30 days48 hours (without GPS)7 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128240 x 240208 x 208454 x 454
Sizen/a1.36 inches1.2 inches1.04 inches1.39 inches
Touch
Typen/aCapacitative TFTMIPLCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX75 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuilt-inBuild-in
Apps
Music

All Wearables