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Sports & Outdoors

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Sports & Outdoors4.4· 20,285 Amazon ratings

Bias-adjusted across 20,285 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Sports & Outdoors.

74.3%
Percentile · Global
68.7%
Percentile · Cohort
Sports & Outdoors
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ROCKBROS Bike Phone Bag Waterproof Bicycle Frame Bag Pannier Top Tube Touch Screen Cycling Phone Case Holder for iPhone X XS 8 7 Plus Cellphone Below 6.5 Inches

How the score was built

Amazon ratings
20,285

used for the Bayesian percentile

Raw star average
4.4 / 5

unadjusted Amazon mean

Bayesian avg
4.40

raw rating shrunk to the category prior

Reviewer-graph z
-0.707

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Sports & Outdoors

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