Bosch vs Philips. We clean scarves with a vacuum cleaner

Power comparison of Bosch BGS21X320 bagless vacuum cleaners versus Philips 2000 series XB2125/09. Opening the lid of an Apple MacBook A1342 laptop. I pick up a box of screws. In the end, which of the pilisos without a bag is more powerful?

What can not be vacuumed with a vacuum cleaner?
Ash, sawdust, and concrete dust contain such fine dust particles that even a small amount of them will completely clog the filters of the vacuum cleaner and impair suction.

What is the difference between a vacuum cleaner with a bag and without a bag?
suction power: air passes directly through the bag, so the vacuum cleaner cleans better; devices with bags are quieter: the bag plays the role of an additional noise absorber, cyclone vacuum cleaners, as a rule, are noisier; the price of such vacuum cleaners is lower than for cyclones and water filters.