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Spigen 【2枚セット】 iPhone 11 Pro ガラスフィルム/iPhone XS/X ガラスフィルム...
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From Spigen
This report was last updated 7/26/2021.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.co.jp claims 447 Ratings, we counted 181 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL
Brand Repeats

WARN
Deleted Reviews

WARN
Rating Trend

WARN
Word Count Comparison

WARN
Reviewer Participation

PASS
Unverified Purchases

PASS
Suspicious Reviewers

PASS
Overlapping Review History

PASS
Reviewer Ease

N/A
Phrase Repetition

N/A
Incentivized Reviews

Most Trusted Reviews
User did not leave written text for this review. [Go to full review]
Dec 25, 2019
73%
TRUST
TRUST
-
Verified Purchaser
-
Overrepresented word count (0 words)
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Take-Back Reviewer (4 deleted Reviews; avg. rating: 5.0)
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Brand Repeater (2 of 44 reviews for this brand; avg rating: 5.0)
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Overlapping Review History: reviewed 3 of 9 top products
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Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
User did not leave written text for this review. [Go to full review]
Oct 15, 2019
30%
TRUST
TRUST
-
Verified Purchaser
-
Created on a high volume day
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Overrepresented word count (0 words)
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Overlapping Review History: reviewed 2 of 9 top products
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Overrepresented Participation (posted 15 Reviews)
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Critical Reviewer (avg. rating: 3.3)
Analysis Details
Fail
Brand Repeats

Brand Loyalists
8 of the 181 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.
Warn
Deleted Reviews

We discovered a total of 1 deleted Review for this product, with an average rating of 5. 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:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
Warn
Rating Trend

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- 9%
- Created over 3 days
We counted 181 reviews for this product over the span of 631 days, an average of 0.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.
However, we see the following 3 days exceeding this threshold:In total, we found that 17 reviews were created on just 3 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Warn
Word Count Comparison

Word counts are approximated for Hanzi and Kanji
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- 98%
- 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 177 reviews (or 98%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn
Reviewer Participation

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- 79%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 143 reviewers (or 79%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass
Unverified Purchases

2 of the 181 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.
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
Suspicious Reviewers

One-Hit Wonders
9 of the 181 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
1 of the 181 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
15 of the 181 reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
3 of the 181 reviewers have written multiple reviews but posted all of them on a single day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
Anker PowerLine II... by Anker
3% also reviewed:
Spigen iPhone SE ケース [第2世代] TPU... by Visit the Spigen Store
2% also reviewed:
【ガイド枠付き】 【2枚セット】... by
2% also reviewed:
[カシオ]CASIO 腕時計 スタンダード... by CASIO STANDARD(カシオ スタンダード)
2% also reviewed:
Anker PowerCore 20100 (20100mAh 2ポート... by Anker
2% also reviewed:
Anker PowerPort 2 Quick Charge 3.0 (31.5W... by Anker
2% also reviewed:
Anker PowerLine USB-C & USB-A 3.0ケーブル... by Anker
2% also reviewed:
Nimaso【2枚セット】iPhone11... by
2% also reviewed:
エレコム リュック ビジネスバッグ... by エレコム
24 of the 181 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.
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 4.3, while the average ease score for reviewers in this category is 4.2. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.3 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
N/A
Phrase Repetition

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

We have not yet completed optimization for this test for Hanzi or Kanji.