My Apple Watch is not charging and it’s new
Hello I bought a new Apple Watch and it’s not turning on
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The article If your Apple Watch won't charge or it won't turn on - Apple Support
is the best resource for this situation. If you've completed that troubleshooting and the issue is still not resolved, use the link in the article to Contact Support.
Note that recent Watches without plastic protective packaging do not usually have film over the watch back or charging puck.