Titanium is significantly stronger than platinum. In fact, titanium is the hardest natural metal. Titanium products do not dent, bend or scratch as easily as platinum items.
There are several other differences between these metals. Though titanium is scratch-resistant, it is easier to remove marks from platinum than titanium. Platinum is dense and weighs more than an equal amount of titanium. Titanium is a far more common metal, so products are significantly less expensive when made from it. Platinum maintains a better appearance over time because titanium oxidizes when exposed to high temperatures. One similarity between the two metals: both are hypoallergenic.