Apple filed a patent for a future iPhone which could change displays based upon which hand is holding the device. Abigail Beall:
The patent is named ‘Electronic Devices with Hand Detection Circuitry’.
It includes new hardware feature for extra accuracy, including touch, proximity, fingerprint and motion sensors.
An electronic device may include a touch-sensitive display and sensor circuitry that detects whether a user’s right hand or left hand is being used to operate the touch-sensitive display
I look forward to that in iPhone 10 in 2019.