i got the GPD pocket 1 with 8GB ram and a 128GB ssd. for comparison i had a 2012 macbook with 4GB ram and 128GB ssd. yes, the mac is snappier, but i always admired the irony of this tiny thing having similar specs. for extra fun i put an apple-logo sticker on it and used them side by side.
the battery died after about 2 years of use. and i could not find a replacement battery, so i got a onemix 1s whose battery died less than a year later. ironically i was then able to replace the gpd pocket battery, but not the onemix battery.
my next device though is going to be the pinephone with its keyboard extension. i found that i only use the pocket when outside when i don't want to carry a real laptop, and that happens rarely enough that an even smaller and much cheaper device should be enough. i still want a device with a keyboard because typing shell commands on a touchscreen is just painful.