Shark/Ninja, the largest US manufacturer of household appliances, scores with the IZ400's thorough suction power, which copes well with large areas and even dog hair. When the floor nozzle of the heavy vacuum cleaner is locked into place, the Stratos takes up little storage space with the suction pipe folded down...

Very well made cordless vacuum cleaner with a high detection rate in intelligent automatic mode. However, the appliance is particularly powerful in the maximum power setting. Unfortunately, the appliance only has an average battery life.