If you want something with a reputation that is exclusively for Bitcoin, then you don't need to look beyond Trezor that offers just that - Bitcoin-only firmware. This way you will surely avoid all possible attack vectors that could appear through some altcoins apps or in any other way through multi-coins firmware.

Very important - Trezor has vulnerabilities that allow the attacker who gains physical access to the device to extract the seed, so it is desirable to add a  passphrase to prevent this.