Otterbox would immediately send you a new Symmetry if it yellowed if you do their warranty on their website. Just warranty it and stick with the better (IMO) case.Between the Otterbox Symmetry Clear and the Tech21 Evo Clear - anyone have a preference? I have the Otterbox now and it's been a great case but omg the yellowing. If only I could find a red silicone case that has military grade protection similar to Otterbox. I honestly don't trust some of the manufacturers as it's easy enough to make a claim around protection but I do trust Otterbox and Tech21.