IFixit tears down mobile phones to see if they can be repaired and they found that the iPhone has a gigabit wireless antenna, and the IP68 rating is pretty legit. The taptic engine is better than any device out there. One thing that Apple didn't tell us, is that the Camera bump is even bigger than before. The cameras are bigger, and it likely means you'll have to get a new case, rather then try and use the older iPhone X case. How big are the batteries? Well, iFixIt says that the iPhone Xs has a 2659mAh battery. The XsMax has a 3179mAh battery. On par with the Samsung S9, smaller than the Note 9.