Fitbit Alta vs. Fitbit Flex 2 vs. Asus ZenWatch vs. Casio G-Shock GBA800 vs. Garmin Forerunner 45

 
Alta
Flex 2
ZenWatch
G-Shock GBA800
Forerunner 45
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowAsusZenWatchRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$130$100$150$120$199
Release20162016201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 daysNA2 years7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320208 x 208
Sizen/an/a1.63 inches1.04 inches
Touchn/an/a
TypeOLEDLEDAMOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP5520 ATM5 ATM

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aAndroid WearBuilt-in
Apps
Music

All Wearables