Pro of 5G phones
You'll get a faster service that'll outstrip 4G even at peak times
You can expect a stronger, more dependable signal too
With 5G coverage getting more and more widespread, it's available in more and more places
Networks charge the same rates for 5G data as 4G. So it's no more expensive
Cons of 5G phones
There's the odd budget-friendly 5G phone. But for the most part, 5G phones are premium handsets with prices to match
Rural areas are still quite badly served for 5G coverage. Coverage is mostly restricted to towns and cites