What percentage of reviews are fake for this product?

28.00% of the analyzed reviews appear to be fake or inauthentic.

What is the authenticity grade for this product?

The product receives a grade of C based on review authenticity analysis.

How many reviews were analyzed?

15 reviews were analyzed for authenticity patterns.

What is the adjusted rating after removing fake reviews?

After removing suspicious reviews, the adjusted rating is 4.10 out of 5 stars.

How does this analysis help consumers?

This analysis helps consumers identify products with manipulated reviews, enabling more informed purchasing decisions based on genuine customer feedback.

Shark Clean & Empty Cordless Stick Vacuum – Lightweight Cordless with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521

Name: Shark Clean & Empty Cordless Stick Vacuum – Lightweight Cordless with HEPA Filter, Portable, Rechargeable, Auto-Empty System, Stick Vacuum for Pet Hair, Carpets & Hardfloor, White, BU3521
Brand: Amazon
SKU: B0D15YWYMD
Availability: InStock
Rating: 4.1 (15 reviews)

ASIN: B0D15YWYMD

Analysis Date: Nov 9, 2025 (re-analyzed Nov 9, 2025)

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Review Analysis Results

Authenticity Grade

28.00%

Fake Reviews

4.73

Original Rating

4.10

Adjusted Rating

Analysis Summary

The reviews show a mix of genuine and potentially inauthentic content. While most reviews contain specific, detailed experiences that suggest real usage (mentions of pet hair, specific cleaning challenges, multi-month ownership), there are concerning patterns. The product has an extremely high 5-star concentration (13 of 15 reviews are 5-star) with only minimal criticism. Several reviews use repetitive marketing language focusing on the same features ('self-empty feature,' 'game changer,' 'lightweight') in similar phrasing. However, the majority include specific usage scenarios, timeframes of ownership, and comparative experiences with other vacuums that lend credibility. The moderate fake percentage reflects that while many reviews appear authentic, the unnatural rating distribution and some formulaic positive language suggest potential manipulation.

Review Statistics

1,440

Total Reviews on Amazon

-0.63

Rating Difference

Price Analysis

Price analysis pending

Price insights will be available shortly.

Understanding This Analysis

What does Grade C mean?

This product has moderate review authenticity concerns. A notable portion of reviews show suspicious patterns. Consider reading reviews carefully before purchasing.

Adjusted Rating Explained

The adjusted rating (4.10 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.73 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.