I tested the latest Apple Watch Ultra 3 vs Garmin Instinct 3 on the slopes, and one performed way better than the other.

Do you want an iPhone on your wrist or deep fitness metrics?

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. June 13, 2025 Add as a ...

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