Microsoft Band 2 vs. Garmin 645 Music vs. Fitbit Alta HR vs. HTC re Grip

 
Band 2
645 Music
Alta HR
re Grip
 MicrosoftBand 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$250$450$150$199
Release2015201820172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours (without GPS)7 days7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 128240 x 240128 x 36160 x 32
Size1.36 inches1.2 inches1.4 inches1.8 inches
Touch
TypeCapacitative TFTMIPOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables