Wear OS watchesare better than they’ve ever been, but charging them is still a pain. While higher-end wearables have thankfully transitioned to chargers that connect to a power source by USB-C rather than USB-A, each smartwatch manufacturer still uses a different proprietary charger — or in some cases,multiple different proprietary chargers. We’d someday like to seea unified smartwatch charging standard, but in the meantime, smartwatches could seriously simplify charging by following the example of a newer type of wearable: smart rings.
Smartwatch and fitness tracker chargers aren’t interchangeable, but the vast majority are very similar: they have a small puck or pill that magnetically sticks to the back of the wearable, permanently attached to a USB cable. This is true of watches from Samsung, Google, Mobvoi, Apple, and plenty more. The design certainly gets the job done, but it’s not terribly convenient.
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In my home, USB port real estate is at a premium, and most of my power bricks are tucked behind furniture, so plugging in or unplugging a smartwatch charger usually means crawling under my desk or reaching behind my bed. It’s not the biggest deal, but it’s a pain. I’ve gotten so tired of dealing with it that I bought a second charger for myPixel Watchjust for travel.
Smart ring manufacturers have figured out a better solution. Chargers for rings fromOura,Ultrahuman, and others are tiny little things with no cables attached. To connect to power, the chargers have USB-C input. It’s a very simple idea, but I think it makes a huge difference for convenience: when I want to move the charger for my Oura Ring to a different room, it’s as simple as plugging the little puck into a different USB-C cable. And when I’m traveling, I don’t need to deal with yet another spooled-up cable in my bag, I can just connect the charger to the same cable I use for my phone, my laptop, my Nintendo Switch, and, well, pretty much everything else I own.

The Oura Ring and its charger.
I’d love to see smartwatch makers take a similar tack to smart rings, basically replacing the hardwired cables on their watches' chargers with USB-C ports. It’d probably make the charging pucks a little larger — the third-gen Oura Ring’s charger is nearly twice as wide as the puck on the end of the Pixel Watch 2’s — but for the added convenience, I think that’s more than a fair trade.
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I still hope that, as smartwatches as a product category continue to mature, they eventually adopt a standardized charger — magnetic inductive charging like whatQi2offers seems like a safe bet. But in the meantime, making wearables' myriad different chargers less of a pain to deal with would be a great step, and smart rings show it’s possible.
Google Charger for Pixel Watch 2
The Pixel Watch 2 uses a proprietary magnetic pin charger. It’s permanently attached to a USB-C charging cable, which I don’t think is a great design — but if you want to travel with your smartwatch, it might be a good idea to grab an extra charger.