I would try Tello.
Below from From Tello website.
Will the Tello eSIM work on my SmartWatch?
At the moment, Apple Watches will not work with the Tello eSIM.
However, various other eSIM-compatible Smartwatches will work great with the Tello eSIM, for example, compatible Samsung Smartwatches.
Just check your smartwatch for eSIM compatibility on our eSIM checker page and proceed with purchase and activation.
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