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
Headphone jack, dedicated fingerprint reader, removable battery, physical sim card trays
Edit: expandable storage
Definitely miss the dedicated fingerprint reader. Had a metal case once that came with a fairly thick (tempered glass I think) screen protector. Everything worked great except the fingerprint reader.
Removable batteries may come back since the European Union has mandated all smartphones have them by 2027
Samsung xcover pro
https://www.gsmarena.com/samsung_galaxy_xcover6_pro-11600.php
Seems like a backwards move IMO. honestly haven’t needed a tray in ~6 years
That tray is important to me at least since my last couple phones used that same tray to also hold the SD card. I can’t speak for anyone else, but a phone without an SD card for extra storage is a huge NO from me, so that tray is an absolute make or break for what my next upgrade is gonna be.
I find them VERY useful because if you break your phone, you can just swap your sim into a backup immediately.
But honestly it’s not a huge deal, I swapped an esim in under 3 minutes last week
Honestly? For all the bitching when Apple first removed it, I hadent and haven’t used wired headphones for a long while. I had Bluetooth headphones long before then.
I still don’t like them, audio gear should last, and Bluetooth earphones are the ultimate in disposable tech. Costs more, shorter lifespan; only good thing is that it’s a revenue driver for those producing them.
I’ve owned three Bluetooth headsets in total. The first I lost, the second is now my wife’s, and the third I still use. I wouldn’t call them disposable, but I’ll agree they are easier to lose.
Something a wired set of anything can’t give me is absolute freedom to move my head and walk away from my phone. I will never willingly go back to wired for anything other than gaming.
The batteries in them aren’t going to go past 4-5 years; I have headphones and earphones over 10 years old, with one pair about to reach the two decade mark.
That is honestly impressive. I can confidently say I’ve only owned one wired headset for a decade, and it’s the one I use for gaming so it never leaves my office.
Everything else has either broken, or been lost. Though I fully admit, serviceable wireless buds would be a thing of beauty. IIRC there are people out there actively working on the problem (other than the companies explicitly aiming for them to be a consumable forever.)
It’s probably a rarer use case, but I use the headphone jack on my S10 all the time to connect it to my stereo and get good audio quality, most cheaper bluetooth receivers only use SBC so the difference is quite noticeable. (Also because the S10 has a pretty good DAC).
I think it came a bit too soon. I had a mid-tier (couple hundred bucks) pair of headphones, so it was annoying to me until they broke and I moved to Bluetooth (Sony WH-1000 gang)
They did have a dongle for it. Annoying, but not insurmountable by any means.
I use them daily at work. Luckily I found a pair with a lightning connector. I also use cable in the car (it’s too old for Bluetooth) and it’s a pain not being able to charge and listen.
I use IEMs when I’m on the go. It would be much better if I had the functionality of using that port instead of the charging port.