Fitbit Alta vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Apple SE

 
Alta
Watch Series 2
ZenWatch 3
645 Music
SE
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$130$269$229$450$279
Release20162016201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours48 hours7 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400240 x 240384 x 480
Sizen/a1.5 inches or 1.65 inches1.39 inches1.2 inches40mm
Touchn/a
TypeOLEDAMOLEDAMOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistancen/a5ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2WatchOS 5
Apps
Music

All Wearables