SEO Rules:

  1. Max of 60 Characters
  2. Keywords but not stuffed
    • Keywords closer to the beginning of your title tag may have more impact on search rankings.
    • Do not repeat keywords
  3. Avoid ALL CAPS
  4. Use Brand Name at the end of the title
  5. Does not require sentence structure

Examples & References:

Make every page is unique:
[Product Name] - [Product Category] | [Brand Name]

Avoid titles like:
Brand Name | Major Product Category - Minor Product Category - Name of Product

References:
https://searchengineland.com/nine-best-practices-for-optimized-title-tags-111979
https://moz.com/learn/seo/title-tag
https://ahrefs.com/blog/title-tag-seo/
https://www.spyfu.com/blog/seo-title-tag-optimization/