There are many different technologies that could be implemented in the next iPhone, but it really depends on what you're looking for. Some of the newer technologies that could be used include:
- an OLED display
- an in-display fingerprint sensor
- wireless charging
- 5G connectivity
Of course, these are just a few examples - there are many other potential technologies that could be used as well. Ultimately, it really depends on your specific needs and preferences as to which technology would be best for you.