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Amazfit T-Rex Apple Apple Watch Ultra 2 (II) Garmin Forerunner 735XT Garmin Vivoactive HR HTC re Grip Samsung Gear S2

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Price and Release Date

Suggested Price$140$799$450$250$$300
Release / Update201920232016201600002015

Activity & Fitness

Calories
Distance
HeartThird-generation optical heart sensor
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate

Battery

Duration20 daysUp to 36 hours normal use, Up to 72 hours in Low Power Mode14 hours to 11 days13 hours to 8 days5 hours to 2.5 days2–3 days
Rechargeable

Compatibility Support

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

Connectivity Support

Bluetooth
Cellular$
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 360502 x 410 pixels215 x 180148 x 205160 x 32360 x 360
Size1.3 inches49mm1.23 inches1.38 inches1.8 inches1.2 inches
Touch
TypeAMOLEDAlways-On Retina LTPO OLEDPMOLEDSuper AMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWater resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810H5 ATM5 ATMIP57IP68

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inWatchOS 10n/aTizen OS
Apps
Music

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