Fitbit One vs. ASUS ZenWatch 3 vs. Amazfit Stratos vs. Fitbit Flex vs. Apple Series 6

 
One
ZenWatch 3
Stratos
Flex
Series 6
 FitbitOneRemove Buy NowASUSZenWatch 3Remove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$229$199$100$399
Release20122017201820132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days48 hours5 days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400320 x 300NA384 x 480
Sizen/a1.39 inches1.34 inchesNA40mm
TouchNA
TypeOLEDAMOLEDOLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceSplast Resistant5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2ProprietaryNAWatchOS 5
Apps
Music

All Wearables