Wrist-Worn GPS Navigator with Advanced Features The Foretrex 601 Wrist-Worn GPS Device is a durable and reliable navigator for the outdoorsman that needs it all. GPS, GLONASS and Galileo satellite system integration sets this unit apart from the previous models. The two-inch diagonal high-resolution display allows for customization of the data pages providing enhanced ease of use. Position has never been more accurate than with the Foretrex 601. Durability is beyond compare with its thermal, shock and water-resistant features (to IPX7 standards). This unit meets military standards and has the proper backlight settings for use with night vision goggles. Store 500 waypoints, 20 routes and up to 10,000 points. Navigate to these points with ease and precision with the included navigation sensors. The altimeter will provide elevation information, barometer will inform you of weather changes and the electronic compass will keep your bearings when moving or staying still. Link your Foretrex 601 with Garmin Connect Mobile, a free app offered by Garmin, to utilize the LiveTrack feature in order to share your position with friends and family. Additional safety features include a long-lasting battery life of over 48 hours in GPS mode. Enjoy a battery life of up to one week when in UltraTrac mode and up to one month in watch mode. If you’re still not convinced this unit has everything to offer for someone that loves the outdoors think again. Area calculation features, hunting and fishing calendars and sun and moon information make this unit comprehensive. GPS-based distance, time and pace information along with its integration with optional fitness sensors purchased separately allow this unit a multitude of purposes. ( Foretrex 601 replaces model Foretrex 401 ) Berry Compliant option does not include hoop and loop wrist strap or strap extender.