It's something like 13 years old, and ~$60.
It can run almost every website that hasn't been web-dev'ed into oblivion.
It balks at anything with memory leaks and inefficient CPU/GPU load.
It can run YouTube/Facebook/Twitter (surprisingly, for the last).
It can't run https://github.com/
It… what? I don’t know about Facebook, but GitHub is a good deal lighter than YouTube and Twitter. GitHub is one of the extremely few websites developed by a large number of people that aren’t atrociously resource-heavy and JavaScript-dependent.
It cannot run it at all, because of all the graphics nonsense going on.
I suggest doing the final test of your your site on:
* A friends old laptop, on their wifi, still logged in as them, and with them clicking the buttons with you watching over their shoulder.
* The same, but a friends old android phone, preferably with 'samsung browser'.
Remember the low res 1366x768 screen.
The low... um. One of us is in a bubble. I'm typing this on a laptop with a 1280x800 screen and it's perfectly fine. Like, not super spacious but I code and browse the web on this box and I don't have any problems. (To be clear, it might well be me in the bubble; this laptop is over a decade old)
The point is to feel the pain. By any modern sensibility both resolutions are pretty awful, and experiencing it on a $200 consumer laptop is icing On the cake. Although I have clients who routinely test applications on ancient 800x600 displays due to legacy constraints.
Keep in mind that hardware improves roughly on line with Moore's Law. The gradation from low-end to mid-market might only be a few years of development.
The 10-year-old system is probably going to be much worse than a current low-end buy.
Moore’s law hasn’t been kind to x86 laptops, and the tricks used to speed things up are missing from low end celeron processors and binned SSDs. The cheap hardware and poor touchpads add to the charm.
I would bet that the 10 year old Lenovo would be surprisingly better than the shitty 2021 device.
There's been SSDs, increased cache, increased memory speed, and more cores.
You might want to go back a bit more than 10 years, but yes, even a reasonably high-grade older system in my experience really dogs out on the current Web.
My software engineer teammates get specially approved 4K displays and “engineering” laptops. People who use the apps are often restricted to “business” laptops. Conference rooms still use old projectors that are even lower resolution. We have no control over the displays our customers use.
I’ve been teaching my engineers to use the responsive design tools in their browsers. For UI components that render differently based on @media queries, it’s been helpful to add stories for those breakpoints to our Storybook component library.
When recording a demo video, try to record at a lower resolution like 720p to save bandwidth and make it easier for people with small screens to watch.
I don't recommend garage sales, however. People tend to overvalue their electronics. I tried to buy a radio that was worth maybe $20 from some guy. He wouldn't part with it for less than $150 because it reminded him of his father. That's nice, but I'm not paying $130 for your memories.