I'm going from a 12 Pro Max to a 15 Pro this year which I'm very excited about! Going down to a smaller screen doesn't bother me at all and nor does the battery life because I'm usually prepared for my day, for example, I'm not a heavy phone user anyways so don't find myself needing to charge during the day and if I'm going out to for the entire day, I'll always take a battery pack with me just in case.