Overview fenix 8 Pro 51 mm Sapphire AMOLED Titanium is a premium multisport Garmin smartwatch designed for sport, outdoor and advanced daily use. The Pro series integrates inReach technology and LTE connectivity, as well as advanced training, navigation and health functions, with AMOLED displays and robust materials such as sapphire and titanium glass. Specifications Case size: 51 x 51 x 17 mm in the product sources consulted; a card also appears with form factor 51 mm. Display: 1.4" AMOLED resolution 454 x 454 pixels. Materials: sapphire crystal, titanium case; a matching with graphite/black finish is indicated in the cards. Strap: Graphite/Black, silicone. Memory: 32 GB of internal memory. Connectivity: Bluetooth, ANT+, WieFi, USB, with LTE and inReach support in the Pro series. Water resistance: 10 ATM / 100 m. Navigation: GPS, GLONASS, Galileo and BeiDou; multiband support indicated in the sources consulted. Sensors: heart rate, oxygen in the blood, barometer, skin temperature and accelerometer. Functions: Integrated LED torch, advanced metrics for training and health, messaging and LiveTrack via LTE in Pro versions.