They say any sufficiently advanced technology is indistinguishable from magic — which is great news if you grew up craving a mystical Tolkien Ring of Power. For those of us who read a lot of fantasy novels — and were serious about accessorizing — ordinary bling began to look a little lackluster compared to jewelry that made you invisible or alerted you to the presence of orcs. Luckily, we live in a time of digital gods.

Consider smart jewelry: The idea has been around for decades, and is finally becoming part of everyday life. Fitbits and other biotrackers have become common, if not ubiquitous. Some Bostonians access the T with a Sesame Ring, the MIT-designed smart ring that acts like a Charlie Card. But there are also products like the Neyya, a ring that can control anything from the volume on your phone to a PowerPoint presentation with just a touch. Need more magic? The NFC Ring unlocks doors, computers, and phones with a wizardly gesture, and it also can send and receive small amounts of information wirelessly (use it instead of a business card). But you can also use apps to give the ring custom tasks, like sending an e-mail when you and your phone are in the right location, or setting an alarm with the wave of a hand.

Neither of these gadgets look much like Rings of Power, though — Neyya, despite being just a letter away from the magical ring Nenya of mithril and diamond described by Tolkien, is essentially just a hunk of smooth black touchpad, while the most recent NFC Ring is matte black ceramic, something Darth Vader might wear to the club. Ringly is possibly the only smart ring that looks like magical jewelry: The face is an actual gemstone of your choice (the moonstone and the tourmalated quartz might be the coolest options). Put it on, and you definitely look like you’re wearing something forged by elves. If only it were a bit more powerful — all it does is light up or buzz when you receive a text or call on your nearby phone.

Sadly, we’ll have to wait a while for the invisibility option, after all.

S.I. Rosenbaum can be reached at si@arrr.net.