Will this card record 4K video?

That depends on the speed class and UHS rating, which are not stated. For 4K, buy a card rated U3 or V30 from a brand that publishes its write speed.

Will it work in a Nintendo Switch?

A microSD card in this capacity is the right format for Switch storage. The console accepts microSDXC cards, so a 128 GB card should be recognized once formatted.

Does it come with an SD adapter?

The listing does not say. If you need to use it in a laptop's full-size SD slot, check the package contents before buying.

Is a 128 GB card enough for a phone?

For most people, yes. It holds thousands of photos and many hours of video, though heavy 4K recording fills it faster than 1080p.

How does it compare with SanDisk or Samsung cards?

Brand-name cards publish read and write speeds, speed classes and warranties. This card lists only capacity, so you cannot confirm performance before buying.