Browser Extensions 



Close

Why is ReviewMeta.com a Must-Have for Amazon Shoppers?


Free Phone Apps

Free Browser Extensions




モバイルバッテリー 20000mAh Poweradd Pilot X7 モバイル・バッテリー 大容量...
More product info From Poweradd

12% of potentially unnatural reviews removed (why?)
Adjusted:
Jump to Report Card


Report Card

Pass Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
PASS Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
N/A Phrase Repetition
N/A Reviewer Participation
N/A Incentivized Reviews

Most Trusted Reviews

3/5
思っていたよりも重量が... [Go to full review]
Jul 5, 2019      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 4.0)


Least Trusted Reviews

5/5
友達のプレゼントと自分... [Go to full review]
Sep 14, 2016      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (56 words)
  • Overrepresented Participation (posted 2 Reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Deleted Reviews

We discovered a total of 12 deleted Reviews for this product, with an average rating of 4.3. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
  2. We have no information on reviews that were never published in the first place.
  3. We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Read more about our Deleted Reviews test.

4.3 average rating of deleted reviews

4.3


Show distribution of deleted reviews

Fail Suspicious Reviewers

One-Hit Wonders


Less than approximately 10% of reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.8 while the reviewers who have posted more than one review have rated this product an average of 4.2. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from one-hit wonders

from reviewers with more than one review


2.8
4.2


Read more about our Suspicious Reviewers test.

Pass Rating Trend
  • <10%
  • Created on high-volume days
We didn't notice any signals that would indicate reviews were created unevenly over time.
Read more about our Rating Trend test.

Pass Unverified Purchases

119 of the 3,310 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from unverified purchasers

from verified purchases


N/A
4.0


Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.

Pass Word Count Comparison
Word counts are approximated for Hanzi and Kanji


  • ~25%
  • Have an overrepresented word count

In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that approximately 25% are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.1
4.0


Read more about our Word Count Comparison test.

Pass Overlapping Review History
  • <10%
  • Substantial overlapping review history
Less than approximately 10% of reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Overlapping Review History test.

Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4, while the average ease score for reviewers in this category is 4.2.

4.0 Product's Average Ease Score

4.2 Category's Average Ease Score


4.0
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

N/A Phrase Repetition
We have not yet completed optimization for this test for Hanzi or Kanji.

N/A Reviewer Participation
We haven't collected sufficient data to run this test yet. more info

N/A Incentivized Reviews
We have not yet completed optimization for this test for Hanzi or Kanji.