Imagine someone purchasing Tangem Ring, and than they have to return it and replace with different size.
Bad security written all over it.
You're right, but they'd probably provide a size chart in order to save themselves the headache of going through the replacement process of those used rings.
Not sure if they've been living under a rock or they're just spreading lies about this being "
the world's first wearable [or ring-shaped] hardware wallet", but it's worth noting that it doesn't even come in second place!