Fitbit Zip vs. Fitbit Charge vs. Fitbit Flex vs. Amazfit GTS vs. Apple Series 6

 
Zip
Charge
Flex
GTS
Series 6
 FitbitZipRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$60$130$100$150$399
Release20122014201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months7-10 days5 days14 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA348 x 442384 x 480
Sizen/aNANA1.65 inches40mm
TouchNANA
Typen/aOLEDLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceSplash Resistant1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWear OSWatchOS 5
Apps
Music

All Wearables