It's a Sammy Galaxy S5 Duos. On a side note: I even had an S3 not too long ago that unfortunately cracked on a fall. I think it's just the screen and it's too expensive to compare. Just a while back in early 2020 one banking software stopped supporting the S5. That's when I felt it really got comparatively old. No more Android version update for it since mid 2017. Still not gonna replace it yet. I can do my banking on computers. That's account management, mind you. Nothing fancy.
I just bought my first Xiaomi a couple of weeks ago and really like it, Xiaomi Redmi Note 9S. If you do decide to upgrade you might want to take a look at Samsung's M and A series (if you want to stick with Samsung). Even the lower end have big batteries and decent sized screens.