GENERAL PHYSICAL DIMENSIONS 6.8 x 16.2 x 3.4 cm *dimensions do not include antenna TOUCHSCREEN Ā DISPLAY SIZE 4.7 W x 7.7 H cm; 3.5 inch diag (88.9 mm) DISPLAY RESOLUTION 282 x 470 pixels DISPLAY TYPE Transflective, colour TFT touchscreen WEIGHT 280 g with standard antenna and battery BATTERY TYPE Rechargeable lithium-ion (included) BATTERY LIFE Up to 20 hours; up to 15 hours with inReachĀ® technology enabled WATER RATING IPX7 HIGH-SENSITIVITY RECEIVER Ā INTERFACE High-speed USB MEMORY/HISTORY 16 GB MAPS & MEMORY PRELOADED MAPS Yes (TopoActive Europe) ABILITY TO ADD MAPS Ā BASEMAP Ā AUTOMATIC ROUTING (TURN BY TURN ROUTING ON ROADS) Yes (with optional mapping for detailed roads) BIRDSEYE Yes, direct to device (no annual subscription required) EXTERNAL MEMORY STORAGE microSDā¢Ā card (not included) WAYPOINTS/FAVORITES/LOCATIONS 10,000 TRACKS Up to 20 dogs (TT 15/TT 15 mini and T5/T 5 mini) and buddies (Alpha 100 and Alpha 200i) simultaneously TRACK LOG 20,000 points, 250 saved gpx tracks, 300 saved fit activities ROUTES 250 SENSORS BAROMETRIC ALTIMETER Ā COMPASS Yes (tilt-compensated 3-axis) SAFETY AND TRACKING FEATURES LIVETRACK yes (with Garmin Exploreā¢) OUTDOOR RECREATION SUN AND MOON INFORMATION Ā CUSTOM MAPS COMPATIBLE Ā INREACHĀ® FEATURES INTERACTIVE SOS Ā SEND AND RECEIVE TEXT MESSAGES TO SMS AND EMAIL Ā EXCHANGE LOCATIONS WITH OTHER INREACH DEVICE Ā VIRTUAL KEYBOARD FOR CUSTOM MESSAGING Ā SEND WAYPOINTS TO MAPSHARE DURING TRIP Ā SEND ROUTE SELECTION TO MAPSHARE DURING TRIP Ā TWO-WAY RADIO FEATURES FREQUENCY BAND MURS RANGE TT 15/T 5, 14.5 kilometres; TT 15 mini/T 5 mini, 6.5 kilometres OUTDOOR APPLICATIONS COMPATIBLE WITH GARMIN EXPLORE⢠APP Ā GARMIN EXPLORE WEBSITE COMPATIBLE Ā CONNECTIONS WIRELESS CONNECTIVITY Yes (Wi-FiĀ®, Bluetooth® and ANT+Ā®)