Amazfit T-Rex vs. Fitbit Charge 4 vs. Garmin Fenix 6S vs. Garmin Vivoactive 5 vs. Garmin Vivoactive HR vs. Mobvoi TicWatch e2 vs. MobVoi TicWatch Pro vs. Sony SmartWatch 3

	Amazfit T-Rex Check Amazon	Fitbit Charge 4 Check Amazon	Garmin Fenix 6S Check Amazon	Garmin Vivoactive 5 Check Amazon	Garmin Vivoactive HR Check Amazon	Mobvoi TicWatch e2 Check Amazon	MobVoi TicWatch Pro Check Amazon	Sony SmartWatch 3 Check Amazon
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Price and Release Date
Suggested Price	$140	$149	$549	$299	$250	$200	$300	$250
Release / Update	2019	2020	2019	2023	2016	2019	2018	2014
Activity & Fitness
Calories
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	20 days	7 days	9 Days	Up to 11 days in smartwatch mode, 5 days with Always-on display, 21 days in battery saver mode, up to 21 hours in GPS mode	13 hours to 8 days	1 day	30 days	2 days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac					n/a			n/a
Windows		Not yet			n/a			n/a
Connectivity Support
Bluetooth
Cellular
GPS
NFC		Fitbit Pay
Wi-Fi
Display
Color
Resolution	360 x 360	66x18	240 x 240	390 x 390 pixels	148 x 205	360 x 360	400 x 400	320 x 320
Size	1.3 inches	.721 inches	1.2 inches	1.2"	1.38 inches	1.2 inches	1.4 inches	1.6 inches
Touch
Type	AMOLED	OLED	MIP LCD	AMOLED		AMOLED	OLED/FSTN	TFT LCD
Functions
Audio Speaker								Bluetooth
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM	5 ATM	10 ATM (100 Meters)	5 ATM (50 Meters)	5 ATM	IP68	IP68	IP68
Notifications
Phone
Emails
Texts
Software
Operating System	Built-in	Fitbit OS	Built-in	Garmin Watch OS		Wear OS	Wear OS	Android Wear
Apps
Music		Spotify control
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