Is the Lenovo Yoga all-in-one good for gaming?

It can run modern games at 1080p on medium settings thanks to the RTX 4050, but the 4K panel is better suited to work than high-refresh gaming. Serious gamers should look at a desktop tower with a stronger GPU.

Can I upgrade the RAM or storage?

All-in-ones like this usually allow a storage swap and sometimes RAM access, but Lenovo's design is not built for easy upgrades. Buy the 32 GB and 2 TB configuration you need up front.

Is the 4K screen worth it at 31.5 inches?

Yes for text, spreadsheets and photo editing, where the extra sharpness shows. For pure video watching or casual use, a 1440p screen would be cheaper and easier to drive.

Does it come with a keyboard and mouse?

Lenovo all-in-ones typically ship with a wireless keyboard and mouse, but bundle contents vary by listing. Check the box contents with the seller before ordering.

Why might a listing for this spec be cheaper than other stores?

A listing far under the usual price for this spec can mean a refurbished unit, a third-party seller or a clearance. Confirm condition and warranty before buying.