People who say “don’t use phones for your main Bitcoin savings” never make sense to me.

1/ Security matters: Phones have a much smaller attack surface and are designed with security in mind, unlike desktops burdened with legacy software and hardware. What's easier to crack—a Windows machine or an iPhone?
2/ Dedicated devices: If you're concerned about your main phone being out and about too much, get a second, dedicated phone for your savings. You should also use a dedicated desktop if you're truly serious about security. Avoiding phones but using a non-dedicated desktop filled with software means you don’t care about security as much as you think you do.
3/ Use multisig: If you set your wallet up properly, the phone should hold no private keys—only a watch-only interface. The wallet interface should be the *least* of your worries. Distributed multisig keys are your main defense. Focus your energy on securing the actual keys.
4/ Use a decoy wallet: If you can’t get a second phone, use a decoy wallet. You can use a decoy wallet even if you have a dedicated phone.

So don’t take bad advice, even from Bitcoiners. Think from first principles.

Don’t be stuck in the 20th century. DO use phones for your main Bitcoin savings.