Many MagSafe wallets include a built-in kickstand or hinge that supports hands-free viewing in both portrait and landscape. Some models offer adjustable or multi-angle stands to provide a wider range of viewing positions.
Listings commonly describe "premium" or "super-strong" magnetic attachments. At least one model specifies an internal ring of N52 neodymium magnets to provide a reliable magnetic snap to MagSafe-enabled phones or cases.
Weights in the listings range roughly from 0.03 pounds up to about 0.2 pounds, so these accessories are generally very lightweight and pocket-friendly.