Burner looks and feels like a colorful gift card, but under the hood it incorporates a secure element chip. You can access its wallet with just an NFC tap, and it works entirely through our (soon to be) open source web app.
There is a lot more to share, like USD II (created by https://www.bridge.xyz/), a stablecoin that we designed to work with Burner without gas, but for now we’re excited to push Burner out the door and start getting feedback from users.
My understanding is someone who wants secure crypto needs to cryptographically safely generate a seed phrase. For signigicant amounts of money you will want that backed up. I guess if this is like a $50 gift card people are treating it like that and might accept if it gets lost then shrug.
I would always recommend using a multisig for storing large amounts of funds regardless of the wallet vendor.