Smartwatches stole the spotlight from phones this fall, but there’s another wearable form factor waiting in the wings: smart rings. Korean outlet Naver recently reported that Samsung has filed a patent with the US Patent and Trademark Office for a smart ring of its own, complete with EKG and smart home control. And while it’d be awesome if Samsung did kick down the doors next fall with a new wearable, the reality is it’ll be a long, long time before this kind of futuristic smart ring…