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Of all the technologies found inside the iPhone X, none raise as many issues as Face ID. To answer such concerns TechCrunch interviews Craig Federighi, Apple SVP of Sofware Engineering, who reveals some of the details behind the facial recognition system.

Just in case anyone missed last week's reveal, FaceID is based on the TrueDepth camera, a combination of RGB camera, IR emitter and dot projector built on the top part of the iPhone X display. It uses the Neural Engine found in the A11 Bionic processor to recognise faces, and Apple says it is more secure than Touch ID thanks to a false unlock rate of just 1/1000000, compared to Touch ID's 1/50000.

Rumours suggest the TrueDepth technology was a hurried effort, and in any case there isn't much one can do with it as yet-- other than facial recognition it allows for "Animojis," or emojis animated according to the user's facial expressions, and augmented reality "masks" placed on one's face.

Apple will not be able to produce enough of the iPhone X to meet consumer demand before H1 2018, analyst Ming Chi Kuo predicts, as shipments are to total 40 million by end 2017.

Previously, according to a KGI Securities research note acquired by AppleInsider, the well-connected analyst placed the number of iPhone X units to be produced in 2017 at 50m. However, Kuo says the iPhone X has a number of desirable features setting it apart from the competition, meaning any handsets Apple fails to build in 2017 will just translate to 2018 sales, by which point the company should manage to produce 80-90m iPhone X units.

"Amid mixed market views, we expect shares of the Apple supply chain to be volatile or even corrected in the near future," the analyst writes. "We recommend investors seize the opportunity to accumulate supply chain shares."

According to IDC wrist-worn devices-- as in watches and wristbands-- will continue to drive the wearable device market until at least 2021, while lesser-known categories such as clothing and earwear should experience growth in the years to come.

The analyst says 2017 wearable device shipments will total 121.7 million, a 16.6% increase over the 104.4m shipped in 2016. Such growth should continue throughout the forecast period, reaching 229.5m units in 2021 with a 5-year CAGR of 17.2%.

"We expect the most innovation and development in the wearables market to take place on the wrist," IDC continues. "It's the ideal location for users to collect, view, and interact with data and applications, and the point to execute tasks like responding to notifications or communicating with other people and devices. Layer on top of that varieties in style, design, segment, and feature set, and wristworn wearables are poised to remain well out in front of the market."

Were you impressed by the iPhone X's Neural Engine-powered face-recognition? Huawei insists it isn't, as it posts a video on its Facebook page stating "facial recognition isn't for everyone."

Following that, the video also claims it will unveil a "real AI phone" on 16 October 2017-- meaning its latest flagship, the Mate 10.

Marketing bombast aside, Huawei might have something actually interesting to show off with the Mate 10. After all, it will be the first phone powered with the Chinese company's latest system-on-a-chip, the Kirin 970. Presented at IFA 2017, the Kirin 970 carries a "Neural Processing Unit" (NPU), a set of processing cores dedicated to AI tasks.