AFAIK COLDCARD is the only HWW that supports detached signatures.
Discussion
What are detached signatures?
Do you need a cold card to use this tool?
Yes or no?
1. Bitcoin signed messages as a separate file.
2. Probably, other HWWs don’t focus this much on bitcoin features.
What is this?
-----BEGIN PGP SIGNATURE----- iOoEABYKAJIWIQSgvgjIZWYakxbgp/92LtKNpcAH2gUCYpdmrV8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0QTBC RTA4Qzg2NTY2MUE5MzE2RTBBN0ZGNzYyRUQyOERBNUMwMDdEQRQcamVyZW15QG5h bWVjb2luLm9yZwAKCRB2LtKNpcAH2iyKAP9A3Lbqpdp1IeHWDJbqHddaln66iAjQ JfA0v5e8ZyBUywD/Vr6f8AIsSqwXgMQnWdBk7cuxnTXAcN4bI++J4LaGxAM= =HN//
-----END PGP SIGNATURE-----