What customers complain about in electric toothbrush reviews
Durability and reliability is the most common complaint in electric toothbrush reviews: 6,583 negative mentions, 27.8% of the 23,720 negative mentions that Amazon counts for 8 widely reviewed electric toothbrushes. Battery life (4,870) and quality (4,753) follow. Adlicio read the counts on 12 November 2026.
Updated
At a glance
Products read
8
Ratings on those products
277,412
Topic mentions counted
64,847
Negative mentions
23,720 (37% of all mentions)
Top complaint
Durability and reliability (6,583)
Most one-sided topic
Mold: 90% of its mentions are negative
Source
Amazon review highlights, read with Adlicio on 12 November 2026
Ranked
The most common electric toothbrush complaints, ranked
The most common electric toothbrush complaints, ranked
Complaint topic
Negative mentions
Share of all negative mentions
Negative share of the topic
Products
Durability and reliability
6,583
27.8%
70%
8 of 8
Battery life
4,870
20.5%
62%
7 of 8
Quality
4,753
20%
22%
7 of 8
Value for money
1,938
8.2%
46%
6 of 8
Noise level
1,477
6.2%
81%
2 of 8
Ease of use
1,349
5.7%
45%
3 of 8
Cleaning performance
1,152
4.9%
9%
8 of 8
Purchase
585
2.5%
38%
1 of 8
No power adapter
485
2%
82%
1 of 8
Mold
176
0.7%
90%
1 of 8
9 smaller topics are not in the table. They add up to 352 negative mentions (1.5%).
In buyers' words
What the complaints sound like
Lines from Amazon reviews of these products, as written. Amazon shortens them with "...".
“My first one lasted 2 years. The last one just broke after 6 months. Not good enough for the price!”
“Does what it should. It is very loud though and I didn’t realize it doesn’t automatically turn off. The brush head is bigger than I’m used to as well.”
On every product page, Amazon groups what reviewers write into topics and counts how many reviews mention each topic in a positive or a negative way. Adlicio read those counts for 8 electric toothbrushes on 12 November 2026 and added them up. Nothing is estimated.
The products are 8 widely reviewed electric toothbrushes on Amazon US, each with at least 2,000 ratings. This is a sample, not every product in the category.
Amazon shows at most 8 topics for a product, so a topic that is missing for a product is not counted for it. One review can count under more than one topic.
Amazon names the same topic in different ways. These were put together: Durability and reliability (Durability, Reliability); Cleaning performance (Cleaning performance, Effectiveness).
Get this for your own product
Connect Adlicio to Claude or ChatGPT, paste an Amazon product link and get its complaint topics with counts and review lines for each topic. It works the same way for a competitor's product.
What do customers complain about most in electric toothbrush reviews?+
Durability and reliability. It has 6,583 negative mentions, 27.8% of all negative mentions across 8 widely reviewed electric toothbrushes on Amazon (November 2026). Battery life has 4,870 and quality has 4,753.
Which electric toothbrush complaint is the most one-sided?+
Mold. 90% of the reviews that mention it are negative (176 of 195).
Where do these numbers come from?+
From Amazon's review highlights. For each product, Amazon groups what reviewers write into topics and counts the positive and the negative mentions. Adlicio read those counts on 12 November 2026 and added them up for 8 products.
Can I get the same data for my own product?+
Yes. Connect Adlicio to Claude or ChatGPT and paste the product's Amazon link. The answer has the topics with their counts and review lines for each topic. Amazon research needs the Starter plan or higher.
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