i absolutely love the form factor!

a similar one was beamu (eink screen, nrf52 with bt): https://nicgardner.com/2020/05/09/beamu-first-impressions/

(this was an actual product, if a bit pointless. i have one still)

any others?

This is so cool. I wish something like this had the ability to load your debit/credit cards into it. Advantages over using the card directly or a wallet app on your phone.

1. You don't voluntarily give your financial transaction info to big tech.

2. Your card details are hidden. So if your wallet gets stolen, less danger of fraudulent transactions.

3. Carry one heavy card instead of many light ones.

4. Don't have to memorize the pin of all the cards. Or the pin just shows on the mini screen after finger print authentication.

Do you use any of the features? This is kinda cool, I love when people pack way too many features into a single product :P