I went from iPod touch 6th gen to adding a iphone 4, then the Touch 7th gen, then ditched both for the iPhone 5s, and I've never looked back. I really like the flat sides, so the next upgrade was an iPhone SE 1st gen and depending on your use that's better and more useful than the iPod. When the iPhone 12 mini came out with flat sides and tiny, that was my next upgrade but then you'll want wireless headphones.