To provide a pocket knife used for orienting at remote places during hiking.

The pocket knife (1) has a GPS-receiver (15) with an antenna (19), processing electronics (16), a display unit (10 and 10a), an input unit (11, 11a, 11b and 11c), and energy supplies (18, 20 and 21) such as a battery (20), an accumulator (21) or solar cells (18). The display unit (10 and 10a) and the input unit (11, 11a, 11b and 11c) can be arranged on an inner cap surface (7a) of a cap which can be closed and opened. The display unit (10 and 10a) and the input unit (11, 11a, 11b and 11c) can be arranged on an element (24) which is pivotally mounted to a handle (2, 3 and 4) of the knife (1). The knife can be easily operated and allows to find user's bearings.