Roku Ultra - HD and 4K UHD Streaming Media Player with HDR, Enhanced Remote with Voice Search
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Brand Repeater (3 of 81 reviews for this brand; avg rating: 5.0)
- Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Created on a high volume day
- Never-Verified Reviewer
- Overlapping Review History: reviewed 1 of 9 top products
- Critical Reviewer (avg. rating: 2.7)
Analysis Details
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- 28%
- Created over 26 days
We counted 1,491 reviews for this product over the span of 1,341 days, an average of 1.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 26 days exceeding this threshold:In total, we found that 415 reviews were created on just 26 days. The reviews on these high volume days have rated this product an average of 4.6 while reviews from other days have rated this product an average of 3.6. 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.
419 of the 1,491 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.2 while the verified purchasers have rated this product an average of 3.7. 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.
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.
Never-Verified Reviewers
54 of the 1,491 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.3 while the reviewers who have written at least one verified purchase review rated this product an average of 3.9. 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.
Take-Back Reviewers
670 of the 1,491 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
(4.2/5)
(4.0/5)
(4.0/5)
(2.9/5)
(4.8/5)
(4.8/5)
28 of the 1,491 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.5 while reviews without substantial repetitive phrases rated this product an average of 3.9. 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.
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209 of the 1,491 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.0 while the reviewers who have a more unique product review history rated this product an average of 3.8. 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 41 deleted Reviews for this product, with an average rating of 4.1. 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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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
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- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.1 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
183 of the 1,491 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.