@Artem / @Oneirics - if you all are stupid and do not know what a 3.5mm jack is. Shut up!
My 3 year old Shure wired earphones sounds much better than Bluetooth earphones costing 2-3 times more. I only use cheapo bluetooth headsets when I'm doing sports like cycling or running. Never for hi-fi quality enjoyment. If you can't tell the difference - shut up!
Wired earphones also allow free FM radio reception in any country I travel to. Its free music that lasts forever on battery and allows me to listen to local music, BBC news or local weather news and emergency broadcasts. It was so critically useful when I was tour-cycling in Taiwan just after typhoon season.
I use a tiny stub type external condenser audio mic which I connect to the 3.5mm jack for audio recording of meetings/conferences. It offers much better quality and loudness than any built-in phone mic. $10.
My selfie-stick camera trigger connects to the 3.5mm jack and never needs to be charged or paired. $5.
I connect a Boya shotgun mic to the jack for perfectly synced audio in my 1080p/4K videos shot from my phone on a selfie stick or gimbal - professional quality results with NO WIND NOISE! $30.
I also have an iBlazr type LED light connected to the same jack which can rotate in any direction as a flash/light for selfies/video/camera shots. $5.
The real reason they want to remove the 3.5mm jack is to save them the need to bundle in a $5 (or less since they order in bulk) hands free headset. Then they can sell you a $100 - $200 bluetooth headset which sounds worse than my Shure.
The iFixit teardowns have proven that there is no battery capacity gain. The space where the jack would have occupied just goes to waste. That was proven when Apple first screwed stupid consumers like you by using the same stupid excuse. Batteries are rectangular shaped, that freed space CANNOT be added to a battery cell unless you show me an odd shaped battery cell component with a strange protrusion.
The ASUS ZenFone 6 has everything - including a 5000mAh battery
while retaining a 3.5mm jack and dedicated SD card slot with 2 x SIM slots. If I buy a flagship phone, you better not cut corners, damn you!
Kid, learnt anything yet dumb dumb?