The short answer is no, the iPhone doesn't need a case, and yes, some folks prefer to keep their iPhones uncovered. It is risky, as one drop on the wrong surface (like pavement) could mean a cracked screen or cracked back or dented corner. You can pay for insurance for your phone -- it's fairly pricey -- so you can get it replaced or fixed cheaply should something happen to it.I never get insurance and just buy a decent case instead. Having a case on your phone won't prevent you from losing it but it does greatly reduce the risk of damaging it.

I like cases that aren't too thick but offer decent drop protection, with a lip over the edge of the screen (sometimes referred to as a "screen bumper") and raised corners that help prevent your screen from cracking if your phone should fall face down. A folio case will more fully protect your screen. The good news is that you don't have to buy a super protective iPhone 13 case like the OtterBox Defender to get good protection. Most cases are reasonably thin and still offer at least 6-foot drop protection. I did include one very thin case on this list for those who prefer minimal protection. B

There are a lot of cases that are very durable and are rated for drop protection for up to 10 or even 14 feet. If I had to pick the most durable case, I'd say the Lifeproof Fre, which is fully waterproof and has a layer of plastic that covers your screen, is certainly near the top. It comes in MagSafe and non-MagSafe versions. The Otterbox Defender Pro Series case is also protective and comes with a belt holster so you can shield your screen when not using it. Over the years, it's been a favorite of construction workers.