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All Amazfit T-Rex vs. ASUS VivoWatch vs. Fitbit Charge 4 vs. Fitbit Luxe vs. Nokia (Withings) Activite Pop vs. Samsung Gear Fit vs. Withings Activite Steel
Amazfit T-Rex ASUS VivoWatch Fitbit Charge 4 Fitbit Luxe Nokia (Withings) Activite Pop Samsung Gear Fit Withings Activite Steel

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Price and Release Date

Suggested Price$140$150$149$149$150$150$170
Release / Update2019000020202021201520142015

Activity & Fitness

Calories
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate

Battery

Duration20 days24 hours to 10 days7 days5 days8 months2–3 days8 months
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Macn/an/an/an/a
Windowsn/aNot yetn/an/an/a

Connectivity Support

Bluetooth
Cellular
GPS
NFCFitbit Pay
Wi-Fi

Display

Color
Resolution360 x 360128 x 12866x18206 x 124n/a432 x 128n/a
Size1.3 inches.721 inches0.76 inches1.3 inches1.84 inches1.3 inches
Touch
TypeAMOLEDOLEDAMOLEDAnalogSuper AMOLEDAnalog

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM5 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inKoodOSFitbit OSBuilt-inn/an/an/a
Apps
MusicSpotify control

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