For me its the ‘Knock Code’ that LG had on their phones (I really wish LG still made at least the V series phones)
Basically there was a four-square area and you set up a sequence of where you would tap to unlock the phone. That set of squares was only shown when you set up the code
Then, to unlock your phone, you would tap those areas in the sequence you set up (even with the screen off).
Fingerprint readers are nice, but I really do miss the knock code
Edit: did find this article with a way to do the knock code, but if done wrong, could brick your phone I guess.
Plus, article is from 2014. When I looked at XDA’s info on it (they also being the developers) it looks like development on it is over, but individual modules may or may not still be supported by their devs
I like where phones are now for the most part, but the thing I miss the most is that magic moment of what leaps and bounds new technology/form factor/whatever was being incorporated into a new phone. Like when the iPhone was first announced or when Motorola announced (and marketed the hell out of) the original Droid - I can still hear the boot up sound.
I remember the debates and arguments had when the first 4+” phone was released and how it was “way too big” compared to the ideal sized 3.5” iPhone. The idea of swiping to type!? What a breakthrough! A fingerprint scanner to unlock your phone, that took like three or four tries some times and was met with skepticism by others.
Now I feel like, despite how monstrously capable are phones are now compared to even five years ago, there’s just not as much of a spark anymore. New phones are iterative and have been for a while. Bendable displays are sort of neat, but just doesn’t quite tap the same bit of magic for me.