Garmin D2 Air X15 vs Garmin Forerunner 165 comparison

Show Only Differences Highlight Differences	Garmin D2 Air X15	Garmin Forerunner 165
key specs
Strap Colour	Black	-
Display Size	35mm	-
Compatible OS	Android and iOS	-
Strap Material	Silicone	Silicone
Dial Shape	Round	Round
Display Type	AMOLED	AMOLED
Ideal For	Unisex	Unisex
general
Brand	Garmin	Garmin
Model	D2 Air X15	Forerunner 165
Release date	October 22, 2025	June 5, 2023
Model Name	Garmin D2 Air X15	-
Dial Shape	Round	Round
Strap Colour	Black	-
Strap Material	Silicone	Silicone
Size	Regular	Regular
Water Resistance Depth	5 ATM	-
Usage	Fitness & Outdoor	Regular
Ideal For	Unisex	Unisex
Dial Colour	-	Black
Touchscreen	-	1.2
Water Resistant	-	5 ATM
Dial Material	-	Fiber-reinforced polymer
dimensions
Weight (g)	38.00	39.00
Width	-	43
Height	-	43
Thickness	-	11.6
product details
Sensor	Heart Rate Monitor, Stress, Sleep, Pulse Ox blood oxygen	GPS, GLONASS, Galileo, accelerometer, ambient light sensor, barometric altimetre compass, gyroscope and thermometer
Compatible Device	Android and iOS	-
Notification	Call Notification, Smartphone Apps Notifications	-
Battery Life	10 days	11 Days
Charger Type	-	Garmin proprietary plug charger
connectivity features
Call Function	Yes	-
Bluetooth	Yes	Yes
Third Party App Support	Yes	-
Call Features	Make and Receive calls	-
Other Connectivity Features	GPS, Galileo, Glonass, Beidou, QZSS	-
Wi-Fi	-	Yes
GPS	-	Yes
platform and storage features
Compatible Operating System	Android and iOS	-
RAM	8GB	32 GB
camera and display features
Display Resolution	454 x 454	454 x 454
Display Size	35mm	-
Display Type	AMOLED	AMOLED
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	-
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	Yes
Compass	Yes	Yes
Calendar	Yes	-
Alarm Clock	Yes	-
Date & Time Display	Yes	Yes
Language	English	-

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