I would love to know if I can use one of this to get unlimited data worldwide.

Jokes aside, keystone wallets are air gapped. And not air gapped but awesome the lesser known but imo best of all, gridplus lattice1.

Heck, even a trezor, despite their mail provider being hacked, is better.

I, however, dont endorse the iPhone idea.

Just don’t buy ledger, terrible company. Many of my friends are getting endless spam because of them. The key backup is a disaster after they promised it was not possible to retrieve it. Their software stack is closed source.

This is imo the last nail in the coffin for them. They should refund all the money lost, and issue a worldwide recall.

Lots to hate about them.