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All Amazfit T-Rex vs. Fitbit Ace 3 vs. Fitbit Sense vs. Fitbit Versa 4 vs. Fossil Gen 6 vs. Fossil Hybrid Smartwatch vs. Garmin 645 Music vs. Garmin Bounce vs. Garmin Fenix 7 vs. Garmin Forerunner 945 vs. Garmin Garmin Fenix Pro 7 (Sapphire) vs. Garmin Garmin Forerunner 965 vs. Garmin Instinct Solar vs. Garmin Venu vs. Google Pixel Watch 2 vs. Polar A370
Amazfit T-Rex Fitbit Ace 3 Fitbit Sense Fitbit Versa 4 Fossil Gen 6 Fossil Hybrid Smartwatch Garmin 645 Music Garmin Bounce Garmin Fenix 7 Garmin Forerunner 945 Garmin Garmin Fenix Pro 7 (Sapphire) Garmin Garmin Forerunner 965 Garmin Instinct Solar Garmin Venu Google Pixel Watch 2 Polar A370

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Price and Release Date

Suggested Price$140$130$324$300$299$155$450$150$699$599$799$749$400$299$350$179.95
Release / Update2019202120202022202120192018202220222019202320232020201920232017

Activity & Fitness

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

Battery

Duration20 days8 Days6 Days6 days1 DayMonths7 days2 days9 Days36 Hours11 daysUp to 12 days in smartwatch mode, Up to 32 hours in GPS mode, Up to 20 hours in GPS mode with music24 days5 days24 hoursUp to 3 days
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Mac
Windows

Connectivity Support

Bluetooth
Cellular
GPS
NFCGarmin Pay
Wi-Fi

Display

Color
Resolution360 x 360240 x 240360 x 36040,5x40,5 416 x 416390 x 390240 x 240240 x 240 pixels240 x 240240 x 240240 x 240465 x 465 pixels128 x 128390 x 390384 x 384 pixels160 x 80
Size1.3 inches1.47 inches1.58 inches1,58 inches1.28 inches1.19 inches1.2 inches1.3 inches1.2 inches1.2 inches1.3 inches1.4 inches1.77 inches1.2 inches1.2"1.18 inches
Touch
TypeAMOLEDPMOLEDAMOLEDAMOLEDAMOLEDAMOLEDMIPMIP LCDMIPMIP LCDSunlight-visible, transflective memory-in-pixel (MIP)OLEDAMOLEDAMOLEDTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM (50 Meters)3 ATM5 ATM5 ATM (50 Meters)10 ATM (100 Meters)5 ATM10 ATM (100 meters)10 ATM (100 meters)10 ATM (100 Meters)5 ATM5 ATM (50 Meters)WR30

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inBuilt-inFitbit OSFitbit OSWear OSBuilt-inGarmin Watch OSBuilt-inGarmin Watch OSGarmin Watch OSWear OSWear OSWear OS 4
Apps
Music

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