A more thorough explanation:

Habit evidence is a type of evidence that shows a person's repetitive response to certain situations. It is characterized by its frequency and particularity.

According to Rule 406 of the Federal Rules of Evidence, habit evidence is admissible in court as an exception to the general rule that propensity evidence is not admissible to prove conduct on a particular occasion. This means that habit evidence can be used to prove how someone would act or react in a particular situation.

For example, if a person has a habit of always checking their phone before going to bed, this habit evidence could be used to prove that they checked their phone on a particular night.

However, habit evidence is not to be lightly established. To offer evidence of a habit, a party must demonstrate a regular practice of meeting a particular kind of situation with a specific type of response.

Conflicting testimony goes to the weight of the evidence and not to its admissibility. This means that if there are different opinions about a person's habit, the court will consider all the evidence and decide which is more convincing.

Overall, habit evidence is considered to be highly probative because the uniformity of one’s response to habit is far greater than the consistency with which one’s conduct conforms to character or disposition.