OPINION: Smartphone tech trends come and go, but none have stuck with me quite like the pop-up camera trend from the late 2010s.  At one point there were multiple pop-up camera phones on the market, and some, like the ZenFone 6, took it a step further with a rear camera module that could flip around to the front of the phone for rear camera-quality selfies.  Take £220 off the Google Pixel 7
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