Will your existing iPhone 6s cases work with the new iPhone 7? Unfortunately, they won't!
If you are considering picking up the new iPhone 7 and want to know if your existing iPhone 6s or iPhone 6s Plus cases will fit it, you will be sad to learn they will not. Apple has made some changes that prevent them from working properly, even though the two phones look rather similar. When Apple announced the iPhone SE, it was pretty much an iPhone 5s shell with updated internals, so cases still fit, but that's not the case this time around. With the iPhone 7 and iPhone 7 Plus, Apple has made some changes that don't allow old cases to work on the new phones.
For example, the iPhone 7 Plus has a dual camera set up, which means that the cutouts on the old cases will not work properly. Some old cases may have larger cutouts that will allow for it to fit, but that isn't the only difference. Apple has also removed the headphone jack, meaning that you no longer need for it to be cut out on the bottom of the case. The iPhone 7 also features stereo speakers on the bottom, so you will want to have proper cut outs so that the sound is not blocked by them.
Don't worry though. There are tons of ways to sell those accessories (including the iMore forums) so that you can afford new ones. Keep in mind, there may not be a ton of accessories available as these phones launch, but like every other year, more will be made available as time passes.
Are you bummed to see that your existing accessories won't work, or excited that you have an excuse to buy some new ones? Let us know what your must-have accessories will be for your new iPhone 7 purchase.