Is the Switch 2 worth it over the original Switch?

If you play in handheld mode or want smoother, sharper games, yes. The screen is larger and 1080p, the Joy-Con attach magnetically, and storage doubles to 256 GB. Owners of an original Switch who mostly play docked on older games have less reason to switch.

Does it really output 4K?

Yes, when docked to a compatible TV, but only in games that support 4K output. Others run at lower resolutions or rely on upscaling. Handheld play tops out at 1080p.

Can I use my old Switch games and controllers?

Compatible original Switch titles run on the Switch 2. Original Joy-Con and Pro Controllers pair wirelessly, but they do not attach to the new console and lack the mouse feature.

How much storage do I get, and can I expand it?

The console has 256 GB of total system memory, part of which is reserved for system data. A microSD Express card adds space for downloaded games.

The console, one left and one right Joy-Con 2, two wrist straps, the dock, the Joy-Con 2 grip, the power adapter, an ultra-high-speed HDMI cable and the important information booklet.