I have the umidigi s3 Pro and it has 6 gigs of ram 128 gb of storage and a SD card slot upgradable to 256 gb 48 megapixel back facing camera plus 12 megapixel telephoto lense, also a 20 megapixel front facing camera it has a 6.3 inch display it has a headphone jack on board and also it has dual Sim card slot but the only bad thing is it has pie but I put 10 on it using a custom rom and it is super stable and the phone is 250 dollars to buy
here is the link if you want to have a look
https://www.umidigi.com/page-umidigi_s3pro_overview.html