12pro with 512gb or 13 with 128,, what would you recommend?

hello! i’m looking to get a new phone (i’m stuck in the appleverse with a mac). i’ve had a refurbed 11pro for maybe 3 years now? but it’s slowly dying on me & i wanna have a backup before it kicks the bucket:( — i’m planning on going travelling next year & the 512gb of storage sounds really sexy. but i want reliable. i’m constantly without storage. these are obviously both refurbished phones but if anyone has any advice on which one generally operates more sufficiently then id really appreciate the advice. thanks gang