Unverified50% confidenceFactExact time
Fitbit于2009年发布首款产品
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
7周Interrail之旅：用数据记录6379公里欧洲铁路旅行
Cite This Claim
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https://kongchang.com/claim/506627API
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get_claim(id=506627)