If you never leave the country, mobile prices in Denmark are pretty good. But it's a small country so not very hard to cross a border, e.g. Malmö is only a 30-minute train ride from Copenhagen, so I find myself there often. And for that usage, the Danish providers' prices are quite bad. For example the one you linked, Telmore, charges a ridiculous 1,86 kr per megabyte (i.e. €250/GB) for roaming data in Sweden. I would be very happy to have Google's $10/GB roaming prices, or even something close to it. Instead it seems the only solution in Denmark is to have a whole bag full of SIM cards (Danish, Swedish, German, ...), and swap them every time you cross a border.
You Could Choose 3 with 3 Like Home.
The plan "FIN TIL DE FLESTE" is unlimited calls, text, Free roaming in 19-20 countries incl. sweeden and 5gb data. its 25USD or 170kr a month and it includes free call roaming, which google fi dosen't. Same plan on google fi is 70USD. https://www.3.dk/abonnementer/mobil/
