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Amazfit T-Rex Apple Watch SE (2022) Apple Watch Ultra ASUS ZenWatch 3 Fitbit Ace 3 Fitbit Versa 4 Garmin Forerunner 245 Music Garmin Forerunner 255 Garmin Garmin Vivofit Jr 3 Garmin Vivosmart HR Plus Garmin Vivosport Suunto 9

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Price and Release Date

Suggested Price$140$249$799$229$130$300$349$400$90$179$199.99$329
Release / Update201920222022201720212022201920222020201720172018

Activity & Fitness

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

Battery

Duration20 daysNot yet36 hrs488 Days6 days7 Days14 days1 year5 days7 days14 Days
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity Support

BluetoothYes
CellularOptional
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 360368 x 448 pixels502×410 pixels400 x 400240 x 24040,5x40,5 240 x 240260x260112x112160 x 6872 x 144320 x 300
Size1.3 inches40mm1.92 inches1.39 inches1.47 inches1,58 inches1.2 inches1.3 inches0.79 inches0.5" x 0.8"1.4 inches
Touch
TypeAMOLEDLTPO OLED RetinaLTPO OLED RetinaAMOLEDPMOLEDAMOLEDMIPAMOLEDMIPLCDMIPTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM (50 Meters)10 ATM (100 Meters)5 ATM5 ATM (50 Meters)5 ATM5 ATM (50 Meters)5 ATM (50 Meters)5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inWatchOS 8.1WatchOS 9Android Wear 2Built-inFitbit OSBuilt-inBuilt-inn/aBuilt-in
Apps
Music

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