Fossil Explorist vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Charge vs. Garmin VivoActive 4

 
Explorist
645 Music
Alta HR
Charge
VivoActive 4
 FossilExploristRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitChargeRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$255$450$150$130$349
Release20182018201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours7 days7 days7-10 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution454 x454240 x 240128 x 36NA260 x 260
Size1.4 inches1.2 inches1.4 inchesNA1.3ionches
TouchNA
TypeAMOLEDMIPOLEDOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWear OS
Apps
Music

All Wearables