My S8+ is in pristine condition. Everything works as intended, my screen or back is not cracked or anything. However, the battery has gotten seriously bad over the years to the point it only last 3-4 hours (with AOD). I have a 256GB SD card to store all my stuff. Should I change the battery or move on?
You could easily change the battery yourself.
The Ultra will feel monster huge compared to the 8+, even if it’s not that big in real life, but because of the shape, it makes a huge difference.