Fitbit Flex 2 vs. Fitbit Zip vs. Amazfit Bip vs. Apple Watch Series 4 vs. Amazfit GTR

 
Flex 2
Zip
Bip
Watch Series 4
GTR
 FitbitFlex 2Remove Buy NowFitbitZipRemove Buy NowAmazfitBipRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$60$99.99$329$199
Release20162012201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days6 months30 daysNot Yet24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a176 x 176384 x 480454 x 454
Sizen/an/a1.28 inches1.78 inches1.39 inches
Touchn/a
TypeLEDn/aNAMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash ResistantIP68Not Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OS 5Build-in
Apps
Music

All Wearables