Smart rings

A tiny, readable Casio watch with full functions that he admires, though he isn't sure if it is a joke product.

A well-built, long-lasting ring that is essentially a smartwatch without half the features, suited to set-and-forget users.

More capable than he expected and tracks as much as a smartwatch, but the new subscription is a downside.

A ring that lets you take calls by holding your finger to your ear; it feels first-gen but shows promise.

Waterproof payment ring he prefers to the watch strap, though he is not a ring person.

Does the same job as the NFC coasters but is not a good-looking piece of jewellery.