For the next trekking trip, carry with you an ultimate companion, the Suunto Core. It is ideally suited for all activities where knowing your altitude and ascent and descent rates is highly crucial. Its altimeter comes with a range of up to 29,500 ft. The core altimeter sports an altitude difference measurement, so you can keep a track of your progress in terms of altitude climbed. The log recorder stores all your movements in altitude between the start and stop times, so you can re-live your trip at home. It is also capable of displaying the current sea level pressure as a detailed graph, showing recording of the last 24 hours at an interval of 30 minutes. It also comes with weather trend indicator that enables you to quickly check the upcoming weather conditions. It also features a storm alarm that notifies you of a sudden drop in air pressure. Its digital compass displays the cardinal or half-cardinal point and the north. The watch functions include time, dual time, date, alarm, sports chronograph, countdown timer, and predicted times for sunrise and sunset for over 400 locations worldwide. To know how much distance you have covered in terms of altitude, get the Suunto Core.