Fitbit Zip vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Casio WSD-F20A vs. Amazfit T-Rex

 
Zip
Watch Series 2
ZenWatch 3
WSD-F20A
T-Rex
 FitbitZipRemove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowCasioWSD-F20ARemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$60$269$229$399$140
Release20122016201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months18 hours48 hours1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400320 x 320360 x 360
Sizen/a1.5 inches or 1.65 inches1.39 inches1.32 inches1.3 inches
Touch
Typen/aAMOLEDAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash Resistant5ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2Wear OSBuild-in
Apps
Music

All Wearables