Five unsuccessful attempts at Face ID will force you to enter a passcode - which you'll need anyway just to set up facial recognition.
That requires you to come up with a secure string of digits - or, for extra security, a string of letters and numbers - to protect your privacy.
However, even with initial production difficulties, Kuo writes that the outlook for 2018-2019 i Phone growth is still positive.
He adds an estimate that Android devices are now likely '1.5-2.5 years' behind Apple when it comes to matching its True Depth camera experience.
During the unveiling earlier this month in California, Apple said the X's battery life would last up to two hours longer than its previous models.
The leaks suggests the i Phone X will come with a 2,715m Ah battery and 3GB of RAM.
This is compared to a 1,821m Ah battery capacity for the i Phone 8, and a 2,675m Ah cell for the i Phone 8 Plus.
The A11 chip then compares your facial structure to the facial scan stored in the i Phone X during the setup process.
Face ID uses infrared to scan your face, so it works in low lighting conditions and in the dark.