Garmin Forerunner 255S Music

General LENS MATERIAL Corning® Gorilla® Glass 3 BEZEL MATERIAL fiber-reinforced polymer QUICK RELEASE BANDS yes (18 mm, Industry standard) STRAP MATERIAL silicone PHYSICAL SIZE 41 x 41 x 12.4 (mm)Fits wrists with a circumference of 110-175 mm COLOR DISPLAY DISPLAY SIZE 1.1" (27.5mm) Diameter DISPLAY RESOLUTION 218 x 218 pixels DISPLAY TYPE sunlight-visible, transflective memory-in-pixel (MIP) WEIGHT 39 g BATTERY LIFE Smartwatch mode: Up to 12 daysGPS-only GNSS mode: Up to 26 hoursAll-Systems GNSS mode with music: Up to 5.5 hoursAll-Systems GNSS mode: Up to 20 hoursAll-Systems GNSS mode plus Multi-Band: Up to 13 hoursSee Details WATER RATING 5 ATM MEMORY/HISTORY 4 GB 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