Garmin D2 Air X15 vs Fire-Boltt Ninja 3 comparison

Compare Garmin D2 Air X15
Compare Fire-Boltt Ninja 3
key specs
Strap ColourBlack-
Display Size35mm-
Compatible OSAndroid and iOS-
Strap MaterialSilicone-
Dial ShapeRoundRectangle
Display TypeAMOLED-
Ideal ForUnisex-
general
BrandGarminFire-Boltt
ModelD2 Air X15Ninja 3
Release dateOctober 22, 2025May 23, 2022
Model NameGarmin D2 Air X15Ninja 3
Dial ShapeRoundRectangle
Strap ColourBlack-
Strap MaterialSilicone-
SizeRegular-
Water Resistance Depth5 ATM-
UsageFitness & Outdoor-
Ideal ForUnisex-
Water Resistant-IP68
dimensions
Weight (g)38.00-
product details
SensorHeart Rate Monitor, Stress, Sleep, Pulse Ox blood oxygen-
Compatible DeviceAndroid and iOS-
NotificationCall Notification, Smartphone Apps Notifications-
Battery Life10 days7 Days
Stand By Time-25 days
connectivity features
Call FunctionYes-
BluetoothYesYes
Third Party App SupportYes-
Call FeaturesMake and Receive calls-
Other Connectivity FeaturesGPS, Galileo, Glonass, Beidou, QZSS-
Wi-Fi-Yes
platform and storage features
Compatible Operating SystemAndroid and iOS-
RAM8GB-
camera and display features
Display Resolution454 x 454240x280
Display Size35mm-
Display TypeAMOLED-
fitness and watch functions
Step CountYesYes
Calorie CountYes-
Heart Rate MonitorYesYes
AltimeterYes-
CompassYes-
CalendarYes-
Alarm ClockYes-
Date & Time DisplayYesYes
LanguageEnglish-
Other Fitness Features-SPO2 tracker, Heart Rate tracker, Sleep monitor

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