Garmin D2 Air X15 vs Garmin Forerunner 945 LTE comparison

Compare Garmin D2 Air X15
Compare Garmin Forerunner 945 LTE
key specs
Strap ColourBlackBlack, White
Display Size35mm44mm
Compatible OSAndroid and iOS-
Strap MaterialSiliconeSilicone
Dial ShapeRoundRound
Display TypeAMOLEDMIP
Ideal ForUnisexUnisex
general
BrandGarminGarmin
ModelD2 Air X15Forerunner 945 LTE
Release dateOctober 22, 2025June 2, 2021
Model NameGarmin D2 Air X15-
Dial ShapeRoundRound
Strap ColourBlackBlack, White
Strap MaterialSiliconeSilicone
SizeRegularLarge
Water Resistance Depth5 ATM50
UsageFitness & Outdoor-
Ideal ForUnisexUnisex
Water Resistant-5ATM
Dial Material-Fiber-reinforced polymer
Dial Colour-Black
dimensions
Weight (g)38.0049.00
Width-44.4
Height-44.4
Thickness-13.9
Diameter-1.2
product details
SensorHeart Rate Monitor, Stress, Sleep, Pulse Ox blood oxygen-
Compatible DeviceAndroid and iOS-
NotificationCall Notification, Smartphone Apps NotificationsYes
Battery Life10 days-
Notification Type-Smart
Rechargeable Battery-Yes
connectivity features
Call FunctionYes-
BluetoothYesYes
Third Party App SupportYes-
Call FeaturesMake and Receive calls-
Other Connectivity FeaturesGPS, Galileo, Glonass, Beidou, QZSSANT+, Wi-Fi, LTE
Wi-Fi-Yes
GPS-Yes
platform and storage features
Compatible Operating SystemAndroid and iOS-
RAM8GB-
camera and display features
Display Resolution454 x 454240x240
Display Size35mm44mm
Display TypeAMOLEDMIP
Scratch Resistant-Yes
Other Display Features-Corning Gorilla Glass DX
fitness and watch functions
Step CountYesYes
Calorie CountYesYes
Heart Rate MonitorYesYes
AltimeterYesYes
CompassYesYes
CalendarYesYes
Alarm ClockYesYes
Date & Time DisplayYesYes
LanguageEnglish-
Number of Buttons-2
audio and video features
Audio Features-1000 Songs

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