Omron M2 Classic Upper Arm Blood Pressure Monitor
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From Omron
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (23 deleted Reviews; avg. rating: 4.2)
- Brand Repeater (2 of 161 reviews for this brand; avg rating: 4.5)
- Critical Reviewer (avg. rating: 4.3)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (25 words)
- Contains repetitive phrases (show)
- Overrepresented Participation (posted 8 Reviews)
- Easy Grader (avg. rating: 4.9)
Analysis Details
(4.8/5)
(4.9/5)
(4.8/5)
(4.7/5)
(4.7/5)
(4.9/5)
(4.9/5)
(4.8/5)
(4.9/5)
(4.9/5)
165 of the 1,071 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases rated this product an average of 4.6. 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.
We discovered a total of 4 deleted Reviews for this product, with an average rating of 4.8. 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.
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- 7%
- Created over 18 days
We counted 1,071 reviews for this product over the span of 3,610 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 18 days exceeding this threshold:In total, we found that 77 reviews were created on just 18 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.
4.5 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 92%
- 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 5 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 980 reviews (or 92%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
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- 94%
- From reviewers with an overrepresented participation
We see the following 4 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1004 reviewers (or 94%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
54 of the 1,071 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.
One-Hit Wonders
62 of the 1,071 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
29 of the 1,071 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
130 of the 1,071 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
12 of the 1,071 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.
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119 of the 1,071 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.
Brand Repeaters
28 of the 1,071 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.