Still not sold on the Apple Watch? Cupertino could have another, even smaller type of wearable device in the works. A new patent from the company reveals potential plans for a smart ring with a tiny built-in display.

The patent, which was filed back in 2014 and published on Thursday describes various versions of a “Ring Computing Device.” Apple offers up several possible models, but they all share a few key features. That includes a computer processor, a rechargeable battery, and some sort of touch controls.

The Cupertino company has a few different ideas for what those controls might look. Some images show a small touchscreen for displaying information and inputting commands. Another version opts for a touchpad instead without any display. There are also a variety of different button configurations, including what looks like a small dial similar to the digital crown on the Apple Watch.

The company mentions a few other interesting features, including a microphone for recognizing voice commands. That suggests Apple might include its digital assistant software, Siri, in the ring. The device could also include some sort of motion sensor, which would know when you started writing and turn the words into digital text automatically.

Overall this Apple Ring actually sounds like a pretty cool idea, though that doesn’t mean it will ever see the light of day. Apple patents tons of concepts every year, and if the company really is working on a smart ring it’s probably changed a lot in a year since this patent was originally filed.