GENERAL PHYSICAL DIMENSIONS 6.8 x 16.2 x 3.4 cm *dimensions do not include antenna TOUCHSCREEN 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 inReach® technology enabled WATER RATING IPX7 HIGH-SENSITIVITY RECEIVER INTERFACE High-speed USB MEMORY/HISTORY 16 GB MAPS & MEMORY PRELOADED MAPS Yes (TopoActive Europe) ABILITY TO ADD MAPS BASEMAP 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 microSD™ 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 COMPASS Yes (tilt-compensated 3-axis) SAFETY AND TRACKING FEATURES LIVETRACK yes (with Garmin Explore™) OUTDOOR RECREATION SUN AND MOON INFORMATION CUSTOM MAPS COMPATIBLE INREACH® FEATURES INTERACTIVE SOS SEND AND RECEIVE TEXT MESSAGES TO SMS AND EMAIL EXCHANGE LOCATIONS WITH OTHER INREACH DEVICE VIRTUAL KEYBOARD FOR CUSTOM MESSAGING SEND WAYPOINTS TO MAPSHARE DURING TRIP SEND ROUTE SELECTION TO MAPSHARE DURING TRIP 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 GARMIN EXPLORE WEBSITE COMPATIBLE CONNECTIONS WIRELESS CONNECTIVITY Yes (Wi-Fi®, Bluetooth® and ANT+®)