Product Detail Pages: Titles - 10-hour ecommerce SEO course

While the title is technically not a tag but rather an HTML element, it is often referred to as a tag in SEO contexts.
An internal analysis that Google performed on their very own Google product pages found that over 90% of those pages could improve its SEO simply by optimizing the title tag.
Since Google emphasizes titles in blue text, they are the first element searchers scan on SERPs. Titles play a big role in determining whether searchers will click on a particular listing. They are also one of the most important on-page SEO factors, and when others link to your pages organically, they tend to use the page titles as anchor text.
It is important to mention that just as with Google Ads, the title of a SERP snippet has the biggest influence on CTR. Moreover, because SERP CTR and dwell time are now parts of RankBrain, it is very important to aim for better click-thru rates on your organic results. Higher than average CTRs and longer dwell times are quality signals used by search engines.