I’ve been giving more thought to the issue of how Apple might embed Touch ID into the display of the iPhone 8. So far, the various reports and rumors have focused on two possibilities: one hi-tech, one low-tech.

The hi-tech approach would be to embed a fingerprint reader beneath the display. We know from the sheer volume of Apple patents that Apple has plenty of ideas about how this might be achieved – but there’s a massive difference between a concept and a finished product. Indeed, there’s a huge gap between a fully-working prototype and something that works in volume production. If the rumors are to be believed, Apple has struggled to achieve this.

The low-tech approach would be to take the same route as many Android brands and simply move the Touch ID sensor to the rear of the casing. I’ve discussed previously why I think this would be a terrible idea, and the most recent reports do suggest Apple is not taking this approach.

But it strikes me that there’s a third possibility here. What might be termed a ‘mid-tech’ approach …

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Author: Ben Lovejoy
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