4-digit passcode hasn't been the default passcode option in iOS for a long time.

>This is supported by a look at smartphone cracking company Cellebrite’s effectiveness at breaking into different phones. Cellebrite can easily open up any iPhone X or earlier iPhone, but the same software used on a Google Pixel 2 or Galaxy S9 extracts very little information, and nothing at all in the case of the Huawei P20 Pro.

>That’s not to say that these Android devices are unbreakable. It's just that it requires a different, more labor-intensive process to get the data requested.

>The sheer variety of Android hardware and customized software builds makes it hard for phone-crackers to build a universal tool to break into Android phones. Meanwhile, a "jailbreak" released late last year permanently bypasses the security functions of every iPhone model from the iPhone 4s to the iPhone X.

This perfectly squares with what I personally know from law enforcement friends but I'm just an internet stranger.