Freediving Variable Weight

In variable-weight freediving, the diver descends on a weighted sled. The diver then returns to the surface under their own power using fins or the rope.

Variable weight uses a sled for descent but requires the diver to ascend actively. In no-limits freediving, a lifting device is used for the return as well, so variable weight demands more physical effort on ascent.

In constant-weight freediving, the diver descends and ascends with the same ballast, normally using fins or a monofin. Variable weight allows a weighted sled on descent, giving it greater depth potential than constant weight.

The sled reduces the effort needed during descent and allows the diver to reach greater depth than in constant-weight disciplines. The ascent still requires careful technique, breath control, and a controlled return using the rope or fins.