Which Viomi Robot Vacuum Cleaner Should You Get?
Written by: Justine Liew

Odoo • Image and Text

If you haven’t already read our article about the robot vacuum cleaner buying guide, you can always read it here

Robot vacuum cleaners have come a long way and have been trending amongst must-have household items. These tiny devices have a straightforward concept; they keep your floors clean so that you wouldn’t have to lift a finger, perfect for busy people like you and me. 

This article will focus on Viomi’s range of robot vacuum cleaners; the Viomi V2 Pro, the Viomi V3, and the Viomi S9 vacuum cleaners that hopefully will give you a better insight on which model suits you best.

Viomi V2 Pro

Odoo • Image and Text

Let’s start by looking at the Viomi V2 Pro vacuum cleaner. It has a suction power of 2150 Pa that is perfect for cleaning carpets, pet hair, and other dust particles lying around. The V2 Pro also comes equipped with LIDAR and SLAM navigation systems that let the device methodically and efficiently clean your house, thanks to its mapping feature. Robot vacuums still produce noise, but it is relatively quiet compared to canister vacuums. V2 Pro offers 69-78 decibels, depending on the operating mode. 


Besides that, housing a 3200 mAh battery, the V2 Pro can last 80-120 minutes through a cleaning or mopping session. During which the device has ten sensors to avoid knocking into furniture and creating unnecessary noise. Moreover, with app control, you can see the floor layout that the V2 Pro has mapped out and can control the device remotely. Initially, the Viomi app (also known as the Mi Home App) was poorly designed, but the new firmware update fixed all bugs and provided additional customization features.  


If you are looking for a mid-high range level or are a first-time buyer, the Viomi V2 Pro Robot Vacuum cleaner
would be your best bet!

Viomi V3

Odoo • Image and Text

Another great option to look at is the Viomi V3 robot vacuum. The V3 offers versatility thanks to its 2-in-1 cleaning mop and vacuum feature. With a higher suction power of 2600 Pa, you can expect a much cleaner floor or carpeted floors, especially when you have pets roaming around! The V3 also utilizes the LIDAR and SLAM navigation algorithm to continually map out its position and draw the following cleaning session map. During which its in-built sensors will prevent the device from hitting against items or walls ahead. 


Also, with a 4900 mAh battery capacity, the device can run up to 150 minutes before it runs low on battery and needs recharging. With the app control function, you can opt to schedule a cleaning session or even adjust the operating modes. This updated model has received positive reviews about its performance and features that keep you worry-free when you’re too busy to clean your house.


The price point is slightly higher than its V2 Pro predecessor, but the Viomi V3 Robot Vacuum
is still well within the mid-high range level, which won’t leave you disappointed!

Viomi S9

Odoo • Image and Text

Moving on, we’ll talk about the newly released Viomi S9 robot vacuum. Unlike its predecessors, the S9 comes in two colour variants for you to choose from; Black and White. Featuring a 2700 Pa suction power, cleaning stubborn debris out of carpets has never been easier. Although with higher suction power, it tends to be a little bit noisier. It can also run up to 100-270 minutes on a single charge due to its 5200 mAh battery capacity. 


One distinct feature that the V2 Pro and V3 models don’t have is the docking and suction station. The S9 can dispose of the dust into the suction station when it returns to charge, so you won’t have to empty the dusty box after every round. Like other Viomi models, the S9 adopts the same LDS 2.0 laser and SLAM navigation to pinpoint the cleaning area. On top of that, the device also recognizes a voice command that you only have to set it up once.


If you have the budget to splurge, by all means, the Viomi S9 Robot Vacuum cleaner is an excellent premium choice. [COMING SOON]


Overview of Viomi Robot Vacuum Cleaners

Here is a side-by-side comparison of Viomi’s range of robot vacuum cleaners from mid-high to premium range that you can read through to understand their similarities and differences.

Mid-High Range

Viomi V2 Pro

  • Price: $649
  • Navigation: LDS + SLAM
  • Suction Power: 2150 Pa
  • Battery: 3200mAh
  • Working Time (Min):
    80-140
  • Climbing: 2cm
  • Dust Box (ml): 550 - only vacuum function
  • Water Tank (ml): 550 - only mop function
  • Dust + 2-in-1 Tank (ml): 300 + 200 (Vauum & Mop Function)
  • Electric Water Volume Control: N/A
  • Camera: N/A
  • Cleaning Area: N/A
  • App Water Volume Control: YES
  • Motor: UNDEFINED
  • Filter: HEPA
  • Noise: 69 - 78 dB
  • Size: Ø350 * 94.5 mm

High-Premium Range

Viomi V3

  • Price: $899
  • Navigation: LDS + SLAM
  • Suction Power: 2600 Pa
  • Battery: 4900mAh
  • Working Time (Min):
    150-180
  • Climbing: 2cm
  • Dust Box (ml): 550 - only vacuum function
  • Water Tank (ml): 550 - only mop function
  • Dust + 2-in-1 Tank (ml): 300 + 200 (Vauum & Mop Function)
  •  Electric Water Volume Control: N/A
  • Camera: N/A
  •  Cleaning Area: N/A
  •  App Water Volume Control: YES
  •  Motor: 18000 RPM
  •  Filter: HEPA
  •  Noise:  <78 dB
  •  Size: Ø350 * 94.5 mm

High-Premium Range

Viomi S9

  • Price: $799
  • Navigation: LDS + SLAM
  • Suction Power: 2700 Pa
  • Battery: 5200mAh
  • Working Time (Min):
    100-270
  • Climbing: 2cm
  • Dust Box (ml): 
    300
  •  Water Tank (ml):
    250
  • Dust + 2-in-1 Tank (ml):
    YES

  • Electric Water Volume Control: YES
  • Camera: N/A
  • Cleaning Area: 320 m2
  •  App Water Volume Control: N/A
  • Motor: 950 W
  • Filter: HEPA 
  • Noise: <70 dB 
  •  Size: Ø350 * 98 mm

Final Verdict

With robot vacuum cleaners rising on the trend, the options are endless. Some people may not mind that their devices make a louder noise, as long as it gets the job done, while others may want it to be less noisy so they can clean their house at night. Everyone has their own opinion about which Viomi Robot Vacuum cleaner suits them best.

On top of your research, we hope that this piece has given you a clearer understanding of the three different robot vacuum models that Viomi has launched. They each have their benefits, especially when newer models tend to be brighter than the older ones.