Introduction. Climbing requires a great variety of movement and manoeuvres, many of which are based on the action of pulling the body up against the force of gravity. For this reason, pull-ups are among the most commonly performed exercises to develop upper body strength and power. However, since the traditional horizontal bar is not grasped as are climbing holds, climbers use more specific devices such as fingerboards and portable holds, the latter suspended from the bar. Aim of Study. This study was designed to investigate whether there was a difference in movement velocity, power and force, as well one repetition maximum (1RM) when pulling up on fingerboards or portable holds. Material and Methods. Sixteen male climbers volunteered to participate in the study (height: 176.4 ± 7.0 cm; weight: 72.4 ± ± 11.2 kg; age: 37.0 ± 10.0 years). Subjects performed pull-ups in the fingerboard (offering a stable suspension point) or portable holds (with single-point suspension offering freedom to move in different directions of the horizontal plane). Movement parameters (power, force, velocity of pull-ups) as well as estimated 1RM were recorded using a Gyko inertial sensor. Results. The analyses revealed that the maximum values of force, power and velocity of pull-ups were not significantly different between both devices. However, values for one maximum repetition were higher on the fingerboard than on portable holds (p < 0.001, ƞ2 = 0.71). Conclusions. On the basis of the study results we can assume that fingerboards (fixed in a stable way) may be relevant in developing maximal strength in pull-ups.