What is sensor.fyi (Mouse Guide)?

Updated

sensor.fyi is a resource site for people who want to understand mice well enough to make an informed purchase. It is aimed at buyers and enthusiasts rather than at visitors looking for a store: the site organizes mouse knowledge into an Info section, a curated Flawless Mice list, and a Sensors reference. If you are choosing a mouse and want to know which models and sensors are considered problem-free, this is the kind of site to check. If you need current prices, stock, or a place to buy, you will have to look elsewhere.

What the site covers

The homepage describes the site's purpose directly: it exists "for anyone looking understand mice, so that they may make an informed purchase." The author notes having used many mice over the years — gaming mice, vertical mice, trackballs — and frames the core idea this way: the perfect mouse does not exist, but there may be a perfect mouse for you.

That framing shapes what the site is and is not:

  • It is a buying-education resource, not a shop or a price comparison tool.
  • It treats "flawless" as a property of specific models and sensors, not as a universal recommendation.
  • It assumes the reader's needs differ, so the goal is to help you match a mouse to yourself rather than crown one winner.

The three main sections

Section What it contains When to use it
Info Explains the various aspects of mice When you want to understand the terminology and tradeoffs before comparing models
Flawless Mice A curated list of mice described as flawless When you want a shortlist of models that pass the site's bar
Sensors A listing of potentially flawless sensors, plus additional reading material When you want to check the sensor inside a mouse you are considering

The distinction between the last two matters. Flawless Mice is about complete mice; Sensors is about the sensor component and includes further reading. A mouse can appear in one context and not the other, so check both if the sensor is your main concern.

Who it is for

The site suits you if:

  • You are about to buy a mouse and want to avoid known problem models.
  • You keep seeing terms like sensor flaws and want a plain explanation.
  • You want a curated starting list instead of sorting through every product on the market.

It is less useful if you already know exactly which mouse you want and only need a retailer, or if you want hands-on measurements for a specific grip and hand size — the homepage does not promise that kind of per-user testing.

Feedback and community

The site invites corrections and additions. If you believe information is incorrect or incomplete, you can send an email or join the community Discord to report it. That is also the route to take if a mouse or sensor you care about is missing from the lists.

How to use it in practice

  1. Start with Info to learn the aspects of mice the site considers important.
  2. Move to Flawless Mice for a curated shortlist.
  3. Cross-check your candidate's sensor on the Sensors page and read the linked material.
  4. If something looks wrong or missing, use email or Discord to flag it.

The site does not state pricing, availability, or login requirements on the page reviewed here, so treat it as a reference layer that sits alongside whatever store you ultimately buy from.