Garmin D2 Air X15 vs Fitbit Sense comparison

Show Only Differences Highlight Differences	Garmin D2 Air X15	Fitbit Sense
key specs
Strap Colour	Black	Carbon, Lunar White
Display Size	35mm	-
Compatible OS	Android and iOS	Android, iOS
Strap Material	Silicone	-
Dial Shape	Round	Square
Display Type	AMOLED	AMOLED
Ideal For	Unisex	Unisex
general
Brand	Garmin	Fitbit
Model	D2 Air X15	Sense
Release date	October 22, 2025	August 25, 2020
Model Name	Garmin D2 Air X15	Sense
Dial Shape	Round	Square
Strap Colour	Black	Carbon, Lunar White
Strap Material	Silicone	-
Size	Regular	Regular
Water Resistance Depth	5 ATM	50 meters
Usage	Fitness & Outdoor	-
Ideal For	Unisex	Unisex
Touchscreen	-	Yes
Water Resistant	-	Yes
dimensions
Weight (g)	38.00	-
product details
Sensor	Heart Rate Monitor, Stress, Sleep, Pulse Ox blood oxygen	Multi-path optical heart rate sensor, Multipurpose electrical sensors compatible with EDA Scan app, Gyroscope, Altimeter, 3-axis accelerometer, Skin temperature sensor, Ambient light sensor
Compatible Device	Android and iOS	Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later
Notification	Call Notification, Smartphone Apps Notifications	-
Battery Life	10 days	Around 6 days
Battery Type	-	Lithium-polymer
connectivity features
Call Function	Yes	Yes
Bluetooth	Yes	Yes
Third Party App Support	Yes	-
Call Features	Make and Receive calls	-
Other Connectivity Features	GPS, Galileo, Glonass, Beidou, QZSS	NFC
Bluetooth Version	-	5
Wi-Fi	-	Yes
GPS	-	Yes
platform and storage features
Compatible Operating System	Android and iOS	Android, iOS
RAM	8GB	-
camera and display features
Display Resolution	454 x 454	-
Display Size	35mm	-
Display Type	AMOLED	AMOLED
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Altimeter	Yes	Yes
Compass	Yes	-
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	English	English
audio and video features
Speaker	-	Yes
Microphone	-	Yes

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