Fitbit Zip vs. Apple Watch Series 2 vs. Amazfit Stratos vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
Zip
Watch Series 2
Stratos
Charge 3
T-Rex
 FitbitZipRemove Buy NowAppleWatch Series 2Remove Buy NowAmazfitStratosRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$60$269$199$150$140
Release20122016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months18 hours5 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312320 x 30066 x 18360 x 360
Sizen/a1.5 inches or 1.65 inches1.34 inches.721 inches1.3 inches
Touch
Typen/aAMOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash Resistant5ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSProprietaryNABuild-in
Apps
Music

All Wearables