There are an assortment of other small adjustments with the phone.The new phones are water resistant for 2 meters for up to 30 min, while the older iPhones were either water resistant for up to 1 meter for 30 min, or not water resistant at all. One downfall of the new phones is that the headphone jack still isn't there, but you can buy a pair of Airpods for $159. They are bluetooth earbuds, which I personally love. I bring my Airpods with me everywhere because they are convenient, and easy to use. If you don't want to spend the money on the Airpods, you don't have to: the iPhone XS comes with a pair of Earbuds that have the lightning port adapter, so you can plug them in where you charge your phone.
Some things could have made the new phone better than it is, such as a headphone jack or if there was a different way to take screenshots so your camera roll isn't filled with accidental screenshots of your lock screen/home screen. But I love the new phone a lot and I would recommend it to anyone who is considering getting a new phone.