On iPhone 6s, what is the maximum number of Passcode digits?

On iPhone 6s, what is the maximum number of Passcode digits? It seems to be 4. It seems that later iPhone versions allow 6 and even 8 digits. I would appreciate it if someone could confirm this understanding.

Thank you in advance for your assistance!

iPhone 6s, iOS 15

Posted on Apr 15, 2022 9:30 AM

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Posted on Apr 15, 2022 11:50 AM

iPhone 6S use 6 digits, but if you want you can change to 4 digits.

  • Change Passcode: Enter a new six-digit passcode. Or tap Passcode Options to switch to a four-digit numeric code, a custom numeric code, or a custom alphanumeric code.


Here an old iPhone 4S can only use 4 digit.


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Apr 15, 2022 11:50 AM in response to ae9eayi4qe

iPhone 6S use 6 digits, but if you want you can change to 4 digits.

  • Change Passcode: Enter a new six-digit passcode. Or tap Passcode Options to switch to a four-digit numeric code, a custom numeric code, or a custom alphanumeric code.


Here an old iPhone 4S can only use 4 digit.


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Apr 15, 2022 11:45 AM in response to Raicya

Thanks for your reply. However, I don't see a explicit answer to my question on the Apple page that you linked to. There does not appear to be an option in iPhone 6s to go beyond the four digits. However, I did not want to assume that. I was looking for some confirmation that my inference is correct that iPhone 6s limits you to only a 4 digit Passcode. Thank you kindly

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Apr 15, 2022 12:08 PM in response to ae9eayi4qe

Like you, I could not find an explicit upper limit …


… only a statement in Apple’s Platform Security Guide that “longer is more cryptologically secure” …


… although I CAN confirm that a 20-digit numeric passcode DOES work on a 6s. (iOS 15.4.1)


(Accessed by selecting “Options -> Custom Numeric Code”)

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On iPhone 6s, what is the maximum number of Passcode digits?

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