Amazfit Bip vs. Amazfit T-Rex vs. Fossil Q Grant vs. Garmin Forerunner 45 vs. Garmin Garmin Forerunner 965 vs. Garmin Vivoactive 5 vs. Garmin Vivofit 4

	Amazfit Bip Check Amazon	Amazfit T-Rex Check Amazon	Fossil Q Grant Check Amazon	Garmin Forerunner 45 Check Amazon	Garmin Garmin Forerunner 965 Check Amazon	Garmin Vivoactive 5 Check Amazon	Garmin Vivofit 4 Check Amazon
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Price and Release Date
Suggested Price	$99.99	$140	$175	$150	$749	$299	$79.99
Release / Update	2018	2019	2015	2020	2023	2023	2018
Activity & Fitness
Calories
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	30 days	20 days	7 days	7 days	Up to 12 days in smartwatch mode, Up to 32 hours in GPS mode, Up to 20 hours in GPS mode with music	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	1 year
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac			n/a
Windows			n/a
Connectivity Support
Bluetooth
Cellular
GPS
NFC
Wi-Fi
Display
Color			n/a
Resolution	176 x 176	360 x 360	n/a	126 x 294	465 x 465 pixels	390 x 390 pixels	88 x 88
Size	1.28 inches	1.3 inches	n/a	1.1 inches	1.4 inches	1.2"	NA
Touch			n/a
Type	NA	AMOLED	n/a	AMOLED	Sunlight-visible, transflective memory-in-pixel (MIP)	AMOLED	NA
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	IP68	5 ATM	3 ATM	5 ATM	10 ATM (100 meters)	5 ATM (50 Meters)	5 ATM
Notifications
Phone
Emails
Texts
Software
Operating System		Built-in	n/a	Built-in	Garmin Watch OS	Garmin Watch OS
Apps
Music
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