I’ve bought an iPod Touch, jailbreaked it, and I can say it’s the best iPhone I ever had. It’s super-slim, it has no cellular module (which I don’t use most times), still has Wi-Fi and Bluetooth (so it’s the same in that regard), it’s super slim (have I said that?), and it has even a strap, so I can wear it on my hand!
Just take a look at how minimalistic the whole look can be, while having the labels removed.
Funny bonus, take a look at its screen with Apple-watch like round icons.