How does an F1 reaction time test compare with a phone flip test?

· Avinash Kumar

Cowboy Duel runs on iPhone. The game is available in English, German, Arabic and Chinese.

They measure the same thing, reaction to a visual go signal, with different movements. An F1-style test times a finger click when the start lights go out. A flip test like Cowboy Duel times how fast you turn the whole phone. Expect the flip time to be a little slower, and compare yourself only with yourself on the same test.

This guide mentions Formula 1 only to describe the start procedure. It is not affiliated with Formula 1 or the FIA.

How the lights-out test works

Five red lights come on one after another. After a random pause they all go out, and that is the start. Online versions copy this: wait, lights out, click. The random pause stops you from counting the rhythm.

How a flip test works

In Cowboy Duel (I made it), you hold the iPhone upright like a holstered revolver and flip it horizontal on the signal. The gyroscope and accelerometer time the movement in milliseconds, and moving early counts as a false start.

Why the scores differ

Lights-out click Phone flip
Body part One finger Wrist and forearm
Input Mouse, keyboard or screen Motion sensors
Device delay Monitor and mouse lag vary Sensor sampling
Best use Quick single tries Games with friends, practice

A bigger movement takes longer to finish, and every setup has its own delay. Neither number is your “true” reaction time.

Getting a fair number

  • Do several tries and look at your typical time, not your best.
  • Use the same device each time.
  • Throw out tries where you guessed.

Related: tap tests versus motion tests and the Cowboy Duel guides.

Questions people ask

How does an F1 lights-out test work?
Five red lights come on one by one, then all go out after a random delay. You click or tap as soon as they go out, and the test shows the time in milliseconds.
Why is my flip test slower than my click test?
Flipping a phone moves your whole forearm and wrist, while a click moves one finger. Bigger movements take longer, so the two numbers aren't comparable.
Can I jump the start in these tests?
Yes, if you move before the signal. Good tests flag that as a false start instead of counting a lucky guess.

Cowboy Duel

A quick-draw reflex game: hold the phone like a holstered revolver, flip on the signal.

Download on the App Store

Keep reading

Also available in: Suomi · Italiano · 日本語 · Svenska