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12Pro to 15PM.

Love the 120hz screen, USB C, Camera upgrades and batteri life.
Other than that everything is better, faster and smother, but it still does the same things as the previous phone. But the screen and battery life alone makes the upgrade worth it.
 
13 mini to 15 Pro.

Enjoying it mostly but surprised how little improvement the battery is over my 13 mini. I wouldn't say it was noticeably better.
 
14 PM to 15 PM. Only enough differences to justify if you update yearly which I do. I am enjoying it and no regrets. Other people that are not hardcore nerds, I would stay away. Especially if you have a 13 PM.
 
Upgraded from a 12 Pro Max. Love the always on display along with the much better cameras and dynamic island.
 
Went from a 13 pro to the 15 pro. There is a lot to love in the transition. The usb-c is the biggest overall upgrade and long overdue. The dynamic island is very useful to jump into currently playing music and videos. The phone is noticeably lighter than the 13 pro which felt like a brick. The cameras are improved and the hdr is noticeably brighter. The speakers are louder too.
 
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