CONCLUSION

   The original Liectroux ZK901 was a good robot vacuum but since its water tank arrived broken, I was only able to test its dry cleaning function which was actually surprisingly good. Well as you can clearly see the upgraded ZK901 Rev.B model surpasses its predecessor in all tests, noise levels included of course. This is due to the fact that the new brushless motor used is far more powerful so it only makes sense that it would also be noisier. Of course, the lithium-ion battery pack used (LG cells this time over) is also significantly larger in capacity which in turn explains the increase in battery life (even though the motor is more powerful). Overall, the ZK901 Rev.B did extremely well in terms of performance the entire 2 months I ended up using it so no complaints from me. Also, the first ZK901 arrived in white color so I didn’t know just how good the black would look like and after seeing it I clearly prefer it over the white version.

   Even though availability for the ZK901 Rev.B Robot Vacuum Cleaner by Liectroux is not good currently still you can find it online for around USD330/380Euros a price tag which is actually very balanced for what you’re getting. Unfortunately, even though performance is there and so are the features the lack of availability is really something I hope Liectroux resolves sooner rather than later. That being said the ZK901 Rev.B delivers on pretty much everything I expect from a mid-end robot vacuum cleaner and for that it gets the Golden Award.

PROS

- Good Build Quality
- Size / Height
- Suction Power (6500Pa)
- Battery Life
- Electronic Water Tank
- Left & Right Extra Length Cleaning Brushes
- Available Colors
- Price (USA)

CONS

- General Availability
- Charging Base Size (Vacuum Is Exposed)