Original topic:

Galaxy Watch Ultra wireless charging via Samsung Galaxy S21 Ultra and S22 Ultra

(Topic created on: 05-05-2025 10:19 AM)
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RonalPeña
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Does anyone know? Does anyone know why my watch won't charge with either of my 2 phones? Supposedly the phone says I can charge the headphones, watches, or other Samsung phones, but it tells me they're not compatible or something like that. 
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I do not have Watch 7, however, I bet Samsung use new technology on new watch. Also the Watch Ultra has large size, might be not fit the S21 & S22 sensors.

I tried mt GW5 on my S23 before, the wireless charging on phone to GW5 is very very slow. Therefore, you did not miss anything. 😉
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Zjking10
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I dont think the watch ultra supports it with wireless qi but the base do
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Helenna
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Hi RonalPeña,

Thank you for your question, and we understand how important it is to ensure your Galaxy Watch Ultra stays charged on the go.

Please note that while Wireless PowerShare on devices like the Galaxy S21 Ultra and S22 Ultra supports charging Galaxy Buds, smartphones, and select accessories, it does not guarantee compatibility with all Galaxy Watch models. Specifically: The Galaxy Watch Ultra uses a unique charging architecture that is not fully compatible with Wireless PowerShare.

This is expected behavior, as Samsung recommends using the official wireless charger for optimal and safe charging performance. 

We appreciate your understanding, and we’ll share your feedback with our development team to help improve future charging solutions.

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RonalPeña
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Thank you so much for the reply, I feel better now, for a moment I thought my watch was broken or something.
PókeDynamax
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https://www.samsung.com/uk/support/mobile-devices/about-the-galaxy-watch7-series-wireless-charging-a... sensor quite different. You will need to purchase a watch 6 and below for reverse charge. Typically quite slow x.x and only good for emergency. Better just carry type c pluck and charge off from phone port or wait until watch 8 if they can add back the function. New model watch coming out around third quarters.
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