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All Amazfit T-Rex vs. Apple Apple Watch Series 10 vs. Fitbit Ace 3 vs. Fitbit Luxe vs. Fitbit Sense vs. Fossil Explorist vs. Garmin Forerunner 45 vs. Garmin Garmin Fenix Pro 7 (Sapphire) vs. Garmin Vivoactive 5 vs. Garmin Vivofit 4 vs. Google Pixel Watch 2 vs. Microsoft Band 2 vs. Polar Ignite 2 vs. Polar Loop 2 vs. Samsung Galaxy Watch 4
Amazfit T-Rex Apple Apple Watch Series 10 Fitbit Ace 3 Fitbit Luxe Fitbit Sense Fossil Explorist Garmin Forerunner 45 Garmin Garmin Fenix Pro 7 (Sapphire) Garmin Vivoactive 5 Garmin Vivofit 4 Google Pixel Watch 2 Microsoft Band 2 Polar Ignite 2 Polar Loop 2 Samsung Galaxy Watch 4

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Price and Release Date

Suggested Price$140$399$130$149$324$255$150$799$299$79.99$350$250$229$120$250
Release / Update201920242021202120202018202020232023201820232015202120152021

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 18 hours normal use8 Days5 days6 Days24 hours7 days11 daysUp to 11 days in smartwatch mode, 5 days with Always-on display, 21 days in battery saver mode, up to 21 hours in GPS mode1 year24 hours48 hours (without GPS)5 Days8 days (without notifications)40 Hours
Rechargeable

Compatibility Support

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

Connectivity Support

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 36042mm: 374 x 446 pixels; 46mm: 416 x 496 pixels240 x 240206 x 124360 x 360454 x 454126 x 294240 x 240390 x 390 pixels88 x 88384 x 384 pixels320 x 128240 x 240396 x 396
Size1.3 inches42mm or 46mm1.47 inches0.76 inches1.58 inches1.4 inches1.1 inches1.3 inches1.2"NA1.2"1.36 inches1.6 inches1.9 inches
Touch
TypeAMOLEDAlways-On Retina LTPO OLEDPMOLEDAMOLEDAMOLEDAMOLEDAMOLEDMIP LCDAMOLEDNAAMOLEDCapacitative TFTLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWater resistant up to 50 meters5 ATM5 ATM5 ATMIP675 ATM10 ATM (100 meters)5 ATM (50 Meters)5 ATM5 ATM (50 Meters)IPX73 ATM2 ATM5 ATM (50 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inwatchOS 11Built-inBuilt-inFitbit OSWear OSBuilt-inGarmin Watch OSGarmin Watch OSWear OS 4n/aBuilt-inn/aWear OS 3
Apps
Music

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