What percentage of reviews are fake for this product?

25.00% 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.

Is this product priced fairly on Amazon?

Based on AI price analysis, this product is Unable to compare.

How is this product positioned in the market?

This product is positioned as a Premium option in its category.

DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B)

Name: DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B)
Brand: Amazon
SKU: B07YQJLYNR
Availability: InStock
Rating: 4.1 (15 reviews)

ASIN: B07YQJLYNR

Analysis Date: Jan 24, 2026 (re-analyzed Jan 24, 2026)

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Review Analysis Results

Authenticity Grade

25.00%

Fake Reviews

4.73

Original Rating

4.10

Adjusted Rating

Analysis Summary

The majority of these reviews appear genuine, with approximately 75% showing authentic characteristics. Most reviews are verified purchases, and the product is a professional-grade tool from a reputable brand where high ratings are expected. The reviews display a healthy mix of detailed personal experiences, specific use cases, and even some critical feedback, which is typical of genuine user reviews.

Strong evidence of authenticity includes several reviews with specific personal context: review #10 describes using the polisher on a boat hull with details about cordless convenience and power for oxidation removal; review #11 provides practical battery usage advice in Spanish with specific runtime observations; review #12 offers constructive criticism about battery inclusion clarity; and review #15 mentions a specific defect with compound residue and grill issues. These detailed, varied perspectives strongly indicate genuine users.

Some concerns exist with a few reviews showing generic marketing language: reviews #1, #2, #3, #5, and #8 share remarkably similar phrasing about '20V MAX* XR power,' 'variable speed control,' '7-inch size,' and 'top-notch build quality.' Review #7 reads like a product description rather than personal experience, and review #13 appears to be video metadata rather than a genuine review. However, these represent a minority of the total reviews.

Overall, this appears to be a legitimate product with mostly genuine positive reviews. The suspicious reviews show patterns of repetitive marketing language but are outweighed by numerous detailed, personal accounts. The product seems well-regarded by actual users for specific applications like boat maintenance and automotive work, with some noting battery considerations as important.

Key patterns identified in the review analysis include: Repetitive marketing phrases in minority of reviews, Multiple languages present (English, Spanish, Portuguese), Mix of detailed personal experiences and generic praise.

Review Statistics

1,829

Total Reviews on Amazon

-0.63

Rating Difference

Price Analysis

This is a professional-grade tool positioned at the premium end of the market. Given DEWALT's typical pricing and the 4.73/5 rating, it represents good value for serious users. Wait for a sale below $220 or look for bundle deals with batteries to maximize value.

MSRP Assessment

Estimated MSRP: $299.00

Source: Brand typical pricing

Amazon Price: Unable to compare

Market Position

Positioning: Premium

Alternatives Range: $150-$400

Value: DEWALT's professional-grade build quality and XR battery compatibility justify its premium positioning versus budget brands.

Buying Tips

Best Time to Buy: Best during holiday sales (Black Friday, Prime Day) or spring tool promotions.

Deal Indicators: Price drops below $220, bundled with battery/charger, or included in DEWALT combo kit promotions.

Watch For: Watch for unusually low prices from third-party sellers (may be used/refurbished), and verify it's the genuine DCM849B model.

Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 24, 2026

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.