- Durable, constructed to military standards (MIL-STD-810G); night vision goggle compatible - Works with GPS, GLONASS and Galileo satellite systems to provide accurate positioning - Know where you are with navigation sensors, including 3-axis accelerometer, 3-axis compass and a barometric altimeter; smart notifications¹ allow your device to receive emails, texts and alerts - Foretrex 701 adds Applied Ballistics Elite software that calculates aiming solutions for long-range shooting - Battery life exceeds 48 hours in navigation mode, up to 1 week in UltraTrac™ mode and up to 1 month in watch mode Tougher Than It Needs to Be Foretrex 601 and 701 navigators are beyond durable. They’re built to military standards for thermal, shock and water performance (MIL-STD-810G). They also include tactical features such as compatibility with night vision goggles and Jumpmaster mode. Multi-GNSS Navigation Includes Galileo Both Foretrex 601 and 701 work with 3 satellite navigation reception networks, including GPS, GLONASS and Galileo, to track your position in more challenging environments than GPS alone. Explore longer — battery life exceeds 48 hours in navigation mode and lasts up to 1 week in UltraTrac mode. Navigation Sensors Keep You on Track To guide you on and off the beaten path, Foretrex 601 and 701 provide comprehensive navigation and tracking using GPS plus ABC (altimeter, barometer and compass) sensor capabilities. The built-in altimeter provides elevation data to accurately monitor ascent and descent, while the barometer can be used to predict weather changes by showing short-term trends in air pressure. The 3-axis electronic compass keeps your bearings, whether you’re moving or not. The Most Accurate Ballistic Solver Available Foretrex 701 with AB Elite software is an excellent aid for hunters and target shooters. It comes equipped with Applied Ballistics Elite software to calculate aiming solutions for long-range shooting. Stay Connected Smart notifications — available on both devices — let you receive emails, texts and alerts from your mobile device right on your wrist. Use the Garmin Connect™ Mobile app to initiate the LiveTrack¹ feature to allow others to follow your journey (within cellular coverage). Other connected features include automatic uploads to our Garmin Connect™ online fitness community and automatic software updates when paired to a mobile device.