The Colmi R02 is one of the cheapest smart rings on the market. It costs about $20, and is remarkably easy to hack. [Floyd ...

Once upon a time, a watch was just a watch. These days, though, smartwatches have all kinds of tricks built in, from heartrate sensors, to accelerometers, gyros, and tons of networking capability.

There’s a lot of junk on the market — these are the best smart frames that are worth your money. With so many battery packs on the market right now, we tested out a bunch to see which are worth your ...