Viomi Alpha 2 Pro
No store we follow ships this model to the United States. This page says what it can do, and which similar robots you can buy here.
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Before you buy, compare it with 2 recommended alternatives
No store here sells this model today, so beside it the highest-scored model with the same kind of station that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Viomi Alpha 2 Pro Best on 1 fact | Cheapest of the top 10 Roborock Q7 M5+ Best on 1 fact | Highest score here Dreame D20 Plus Best on 3 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | $214Amazon.com best | $309Amazon.com |
| Score | not in our ranking | best | |
| Rank | – | rank 8 of 16 with a self-emptying station | rank 1 of 16 with a self-emptying station |
| Customer rating | – | ★ 4.0 · 25,402 reviews | ★ 4.2 · 3,684 reviews best |
| Mopping | |||
| Mop type same on all | flat or vibrating pad | flat or vibrating pad | flat or vibrating pad |
| Mop lift on carpet higher is better | – | no | – |
| Automatic mop detach | – | no | – |
| Washes the mop | – | no | no |
| Hot-air drying | – | no | – |
| Station | |||
| Station same on all | self-emptying station | self-emptying station | self-emptying station |
| Dust bag lasts longer is better | – | up to 49 days | up to 150 days best |
| Plumbing hookup | – | no | – |
| Brush and obstacles | |||
| Anti-tangle brush | – | yes | yes |
| Climbs thresholds up to higher is better same on all | 0.8 in (20 mm) | 0.8 in (20 mm) | 0.8 in (20 mm) |
| Climbing system for high thresholds | – | no | – |
| Size, noise and age | |||
| Robot height lower is better | 3.7 in (9.5 cm) best | 3.9 in (9.9 cm) | 3.8 in (9.7 cm) |
| Noise not judged | 68 dB | 65 dB | – |
| On the market since | – | May 2025 | – |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Viomi Alpha 2 Pro specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Mopping 1 fact
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- flat or vibrating pad
Navigation and obstacles 1 fact
- Climbs thresholds up to
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 0.8 in (20 mm)
Robot 3 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 3.7 in (9.5 cm)
- Dust bin in the robot
How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.
- 200 ml
- Noise
The noise in decibels, in the setting its source names: makers mostly give the standard setting, stores often the highest. 65 dB is like a vacuum at half power, 55 dB like a conversation.
- 68 dB
Battery 1 fact
- Runtime per charge
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 200 min
Smart features and warranty 1 fact
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant
Sources: bol.com
Frequently asked questions about the Viomi Alpha 2 Pro
Can the Viomi Alpha 2 Pro mop?
Yes, with a flat mop cloth under the robot.
Does the Viomi Alpha 2 Pro work with Alexa, Google Home or Siri?
It works with Alexa and Google Assistant.
How high a threshold can the Viomi Alpha 2 Pro climb?
Thresholds up to 0.8 in (20 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Viomi Alpha 2 Pro fit under low furniture?
The robot is 3.7 in (9.5 cm) tall, so it fits under furniture with at least 3.8 in of clearance.
How long does the Viomi Alpha 2 Pro run on one charge?
200 minutes on its quietest setting.