Smartphone batteries have come a long way during their existence, but even today, their durability is second to none – even high-end phones don't last more than a few days on a single charge. And while this problem can be solved by using a power bank or battery case, Samsung envisions something much more elegant for the future – a self-powered ring. That's according to a patent that leaked into the ether earlier this week.
According to Samsung, the ring would be powered by the movement of the user's hand. More specifically, hand movements would set the magnetic disk inside the ring in motion, creating electricity. But that's not all - as the patent suggests, the ring will be able to convert body heat into electricity.
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There should also be a small battery inside the ring that will be used to store the generated electricity before it is transferred to the phone. And how exactly does the ring get her to the phone? According to the patent, there will be no need to connect a cable to the phone or place it on a charger, the ring will simply charge it as the user uses it. If you have your smartphone in your hand now, you may notice that either your ring or middle finger is directly opposite where the wireless charging coils would be (or where they are if your phone has wireless charging).
As with all the devices described in the patents, it's unclear whether the self-powered ring will ever become a commercial product. We can imagine that there would be quite a few difficulties associated with its development, however, it is undoubtedly a very interesting concept that could revolutionize the way smartphones are charged.
