I just purchased a RG 350P and an RG 350M and I have to say I like the 350P way better. Why? Because the screen has a lower resolution. This means the 8 and 16 bit systems (and most 32 bit PS1 games) run at their native 1:1 resolution, instead of stretched and upscaled to fit a 640x480 or higher res screen. The games look so razor sharp and crisp, and "pixel perfect" on the 320x240 screens.
I really like the 350P; it almost runs Super Mario RPG at full speed (if using a 2017 release of pocketSNES instead of one of the newer ones), but I would enjoy a somewhat larger screen. the N3DS XL when hacked has a bigger screen, and the low resolution means it runs SNES, NES, Genesis, etc at their native pixel perfect resolution. However I don't really like the speakers on the n3DS XL, and I would prefer a Linux/Dingoo device.
Is there a device out there with a 320x240 screen that's larger than the 350P? This has been surprisingly hard to google. Preferably with an IPS or even an OLED screen (I hate the blurryness of TN panels with retro games). I really fear that most of the new devices that will come out in the future will have 640x480 or higher res screens which is really unfortunate in my humble opinion. Not everyone wants to emulate Dreamcast on the go. I just want SNES games to look pixel perfect!
I would really appreciate any info. Thanks so much!