What's the difference between domestic steamer and traditional steamer?

Compared with the traditional steamer, the nutrition loss of food is also very troublesome to operate. Now there are many brands of steamer, and the demand is large, so it will be simpler and more convenient to use. My family uses a Mars steamer, and I often cook steamed vegetables myself, so the nutrition of steamed vegetables can be well preserved, and the operation time is short and the taste is good.