Brand - Garmin, Model - Garmin D2 Air X10, Watch Size - 43mm, Cellular Network - No, Dial Shape - Round, Display Size - 1.3 inch, Display Type - AMOLED, optional always-on mode, Display Resolution - 416 x 416, Display Protection - Corning Gorilla Glass 3, Camera - No, Loudspeaker - No, Microphone - No, Sport Modes - Running Features/ Golfing Features/ Outdoor Recreation/ Cycling Features/ Swimming Features/ Kid Activity Tracking Features, Water Resistant - 5 ATM, Blood Pressure - No, Blood Oxygen - Yes, Heart Rate - Yes, Sensors - GPS, Glonass Galileo, Garmin Elevate Wrist Heart Rate Monitor, Barometric Altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Ambient Light Sensor, Pulse Ox Blood Oxygen Saturation Monitor, Electrical Heart Sensor (ECG App) - No, Optical Heart Sensor - No, Activity Tracker - Yes, Button - 3, Card slot - No, Wi-Fi - Yes, Bluetooth - Yes, NFC - No, GPS - Yes, Connectivity - Bluetooth, ANT+, Wi-Fi, Body Materials - stainless steel, Body Color - Black, Band Color - Black, Watch Dimension - 43.6 x 43.6 x 12.6mm, Weight - 51.0 gm, Others - Case Material: fiber-reinforced polymer with stainless-steel rear cover,Strap Material: silicone,Battery Life: Smartwatch mode: Up to 7 days Battery Saver Smartwatch Mode: Up to 10 days GPS mode with music: Up to 8 hours GPS mode without music: Up to 24 hours GPS + SPO2: Up to 20 hours, Features - Clock Features: time/date gps time sync automatic daylight saving time alarm clock timer stopwatch sunrise/sunset times, health monitoring wrist-based heart rate (constant, every second) daily resting heart rate abnormal heart rate alerts respiration rate (24x7) pulse ox blood oxygen saturation yes (spot-check, and optionally all-day and in sleep) fitness age body battery, energy monitor all-day stress relaxation reminders relaxation breathing timer , sleep, sleep score and insights hydration, women`s health health snapshot, daily smart features : connect iq (downloadable watch faces, data fields, widgets and apps), smart notifications, text response/reject phone call with text (android only), calendar weather, controls smartphone music, plays and controls watch music music storage,up to 650 songs find my phone, find my watch smartphone compatibility iphone, android pairs with garmin golf app, pairs with garmin connect mobile garmin pay bluetooth phone calling and voice assistant support, safety and tracking features ,aviation features, activity tracking features step counter move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) auto goal (learns your activity level and assigns a daily step goal) calories burned,gym & fitness equipment,training, planning and analysis features., Warranty - No Warranty