Can I use my watch in a Sunlighten Infrared sauna?
Can I use my Apple Watch in sunlighten Infrared Sauna.
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They are not meant for the heat.
You may likely damage your watch in a sauna.
Apple does not recommend using it in a sauna.
See Water resistance isn't a permanent condition and may diminish over time.
as well as
See Keep Apple Watch within acceptable operating temperatures