I got myself a Dell Precision 7750, but without the discrete GPU option as the price was getting ridiculous. My main requirements were similar to yours: - SIM

I got myself a Dell Precision 7750, but without the discrete GPU option as the price was getting ridiculous. My main requirements were similar to yours: - SIM card: Supports 4G but you have to disassemble the laptop to insert the SIM. A dongle may have been a better option, as I doubt the SIM module can be upgraded to a 5G one when they come available. - I quite like the keyboard - Screen is great - Fast charging with the Dell adapter only - Loads of GPU options - Standard components are user upgradable. I installed 128GB RAM (max) and another SSD myself. It supports a total of 4 SSDs - There was no AMD CPU option at the time I bought it, but those seemed rare/unavailable from other vendors too.