Presumably, a magnet implant would allow you to feel a static magnetic field by moving your hand around, since that would, from your finger's point of view, turn it into a changing magnetic field.

You can feel both. For me static fields are a very strange feeling which is not very comfortable. Having only one small magnet (the second generation ones from Steve Haworth) I have to concentrate to feel a low static magnetic field.

Changing ones are more obvious and way more comfy. I think this is because a static one pulls or pushes the magnet all the time while changing ones let the magnet "vibrate" (from pulling and pushing all the time).