Brand - Garmin, Model - Garmin D2 Mach 1 Aviator, Watch Size - 47mm, 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 - sapphire crystal, Storage - 32 GB, Camera - No, Loudspeaker - No, Microphone - No, Sport Modes - Running Features/ Golfing Features/ Outdoor Recreation/ Cycling Features/ Swimming Features/ Kid Activity Tracking Features, Water Resistant - 10 ATM, Dustproof - No, Blood Pressure - No, Blood Oxygen - Yes, Heart Rate - Yes, Sensors - Gps, glonass, galileo, multi-frequency positioning, 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 - 5, Card slot - No, Wi-Fi - Yes, Bluetooth - Yes, NFC - No, GPS - Yes, Connectivity - Bluetooth, ANT+, Wi-Fi, Body Materials - Titanium, Body Color - Silver, Band Color - Silver, Watch Dimension - 47 x 47 x 14.5mm, Weight - 47 gm, Others - Case Material: fiber-reinforced polymer with titanium rear cover, Quickfit watch band compatible: included (22 mm), Strap Material: Leather version: Italian leather & silicone Titanium version: Titanium & silicone. Battery Life: Smartwatch mode: Up to 11 days (4 days always-on) Battery Saver Smartwatch mode: Up to 21 days GPS only: Up to 42 hours (30 hours always-on ) All satellite systems: Up to 32 hours (24 hours always-on) All satellite systems with multi-band: Up to 20 hours (15 hours always-on) All satellite systems with music: Up to 10 hours (9 hours always-on) Max battery GPS: Up to 75 hours Expedition GPS: Up to 14 days Fly activity (GPS + SpO2): Up to 24 hours, Features - Direct-to navigation: Navigate straight to a location or waypoint in the worldwide aeronautical database. Or choose the Nearest function to activate a path to a nearby airport. Weather reports: Access aviation weather, including METARs, TAFs and MOS, to see winds, visibility, barometric pressure and more. Meteogram feature: See graphical indications of MOS forecasts for specific airports2, including projections for temperature trends, wind, dewpoint, sky cover, precipitation probability and more. Pulse ox sensor Check Pulse Ox to gain awareness of how well your bodys oxygen levels are adjusting to the thinner air at higher altitudes. Airport information: View runway orientation (including wind components1), lengths and airport frequencies as you approach your destination. Alerts and timers: Manually set vibrating alerts to remind you when it`s time to switch fuel tanks or perform other time-critical tasks., Warranty - No Warranty