Apples 2021 iPhones will come with Face ID and Touch ID under the screen

iPhones in 2021 will have two biometric authentication methods. The company will keep the Face ID but also resurrect Touch ID in the form of an under the screen fingerprint reader. In-display fingerprint technology has only recently started feeling comparable to conventional ones, so it's only logical for Apple to use it sometime in the future. Still if the report has it correct and we have to wait until 2021 it might be too long.

Ming-Chi Kuo outlines a couple of issues that Apple needs to resolve before making the step. Power consumption, size of the sensing area, thickness of the module and the production yield rate of the lamination process are some of the main obstacles that Apple needs to overcome. Analysts believe it can do it in the next 18 months or so.

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