Apple Watch Series 3 vs. Polar Loop 2 vs. Fitbit Ionic vs. Fitbit Alta HR vs. Garmin Vivosmart 4

 
Watch Series 3
Loop 2
Ionic
Alta HR
Vivosmart 4
 AppleWatch Series 3Remove Buy NowPolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$329$120$299$150$130
Release20172015201720172018

Activity & Fitness

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

Battery

Duration18 hours8 days (without notifications)4+ days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a348x250128 x 3648 x 128
Size1.5 inches or 1.65 inchesn/a1.421.4 inches0.74 inches
Touch
TypeAMOLEDLEDOLEDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM50m5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aFitbit OS
Apps
Music

All Wearables