I do not own the Deeper or the iBobber, but I have used both when with co-anglers. I would say that they are both useful and each does similar functions, but they each have different features. Since I mainly fish from the bank in ponds/small bodies of water, I liked the ability to check water temperature and see depth/structure. To be honest, the iBobber is the more economical choice with a more affordable price. As for the longevity between the two, I have heard different things.