Before you buy, you need to determine what your needs are, and how much you’re willing to spend. Things you’ll want to consider include:
1.How much you’re willing to spend.（under 200 usd, tesvor x500 is your best choice.）
2.The size of the space you want to clean.(for Multi-room Cleaning, Tesvor X500 Pro is the best choice.)
3.If you need a vacuum to clean up pet hair.(tesvor t8 is the best choice)
4.If you want to control the vacuum using your smartphone.