REDMOND RV-R670S WiFi: A robot vacuum cleaner with lidar and advanced wet cleaning

This review will examine the popular REDMOND RV-R670S WiFi robot vacuum. It features lidar navigation, dry and wet cleaning, and can be controlled not only via a mobile app but also a remote control. Prices range from $270 to $370. However, the average price is around $330, which is quite reasonable considering its capabilities, the reputable manufacturer, and the comprehensive warranty. Next, I'll thoroughly review and test the REDMOND RV-R670S WiFi, after which I'll express my opinion on whether this robot vacuum is worth buying. So, let's get started!

Equipment

The robot vacuum cleaner arrived in a branded box like this:

The package includes:

1. Charging base.
2. Power adapter.
3. Water tank with microfiber cloth installed.
4. Spare napkin.
5. Remote control.
6. Two spare side brushes.
7. Tool for servicing a robot vacuum cleaner.
8. Spare HEPA filter.
9. And the documentation for the robot vacuum cleaner is in Russian.

The kit is comprehensive. It includes all the necessary accessories and spare parts for the robot's first use.

Appearance

Now let's take a look at the REDMOND RV-R670S WiFi's design. It's round and made of glossy plastic. The body's diameter is slightly smaller than standard dimensions, measuring 33.5 cm. However, the height is standard for a lidar robot vacuum cleaner—9.5 cm.

The lidar cover is spring-loaded, preventing the robot vacuum from getting stuck under furniture. The control panel features two mechanical buttons: a forced return to the charging base and a start/pause button.

The dust container is removed from the rear. It holds up to 450 ml of dry waste. A shutter inside prevents accidental spillage when the container is removed. Do not rinse the dust container with water because the motor is located inside. The filtration system consists of a mesh filter and a HEPA filter.

Instead of a dust container, you can install a water tank that holds up to 300 ml of water. In addition to the water tank itself, the container also has a waste collection compartment. It's important to note that in wet cleaning mode, the REDMOND RV-R670S WiFi only sweeps, without suction. The cloth is attached with Velcro, and water flows through two holes. Incidentally, it's important to note that the water flow is electronically controlled.

Let's take a look at the robot vacuum's underside. It has three fall protection sensors. It has two side brushes, three-pronged and quick-release. The side brush makes it easy to clean the brush of tangled hair and fur.

The central brush has bristles and petals. Both sides can be removed to remove tangled hair and fur.

Overall, the build quality of the REDMOND RV-R670S WiFi is average, considering the price segment.

Technical specifications

The main characteristics of the REDMOND RV-R670S WiFi, as declared by the manufacturer:

• Li-Ion battery 3200 mAh.
• Suction power 2500 Pa.
• Cleaning area >100 sq.m.
• Battery life up to 120 min.
• Dust collector 450 ml.
• Water tank 300 ml.
• Obstacle clearance up to 2 cm.
• Dimensions 335*95 mm.
• Weight 3.5 kg.

Functional capabilities

Let's move on to a feature overview. The REDMOND RV-R670S WiFi can be controlled both via the proprietary REDMOND Robot mobile app and the remote control. The main functionality, of course, is available in the app, so let's start with that. Connecting the robot vacuum to a Wi-Fi network is straightforward. Follow the manufacturer's instructions.

On the main control panel, the robot vacuum creates a room map and even automatically divides it into rooms. In the map management section, you can select the desired map from the list of saved ones. This robot vacuum can store up to three maps in its memory.

To the right of the map are functions such as selecting a point on the map to direct the robot to, selecting a cleaning zone, and setting a virtual wall or no-go zone where the robot should not enter. Below the map are data on the last cleaning job and the battery percentage.

Below are functions such as starting the automatic cleaning process, adjusting the suction power and the degree of wetting of the cloth, forced return to the base for charging, as well as searching for the robot vacuum cleaner by sound signal, starting local cleaning and manual control.

In the settings section, you can adjust the volume of voice notifications. It's important to note that the REDMOND RV-R670S WiFi speaks Russian. You can also enable or disable the ledge-climbing mode, as well as the resume cleaning function after recharging at the base.

Additionally, you can change the robot vacuum's name, set up scheduled cleaning at specific times and days of the week, and choose a voice package. Incidentally, here's an important point: you can even record your own voice commands through the robot's microphone, allowing it to creatively voice each action, as is possible with custom voice packages. Xiaomi robot vacuum cleaners, which is why many people love them. If necessary, you can share control with other family members and update the firmware to the latest version.

That's all the app's functionality. In my opinion, it lacks advanced features like selecting specific rooms for cleaning, even with scheduled cleaning settings, and the ability to change room boundaries in map mode.

The remote control has duplicated functions such as on/off, automatic cleaning mode, forced return to the base for charging, manual control, start/pause, suction power adjustment, and the choice of two additional cleaning modes: local or perimeter.

It's also worth noting that the REDMOND RV-R670S WiFi can be controlled via Yandex.Alice. That's a plus.

Navigation

Finally, let's move on to the tests. First, we'll test the robot vacuum's navigation in a room with obstacles. The cleaning cycle begins with a perimeter walk. The robot didn't get stuck on the dryer's feet; it was able to move over them and continue cleaning. After moving along the walls, it proceeds to clean the entire accessible area in a serpentine pattern. The REDMOND RV-R670S WiFi swept around chair legs and a box. After the entire area was covered, the robot vacuum returned to the charging base without a problem. The test was successful.

As for navigating within the house, the robot vacuum goes room by room, first along the perimeter, then in a serpentine pattern. There were no uncleaned areas after cleaning, though it did have some trouble navigating fluffy carpets. It didn't manage to do so on the first try. However, the navigation itself is good, as is the cleaning speed.

Suction power

The suction power is quite average. The REDMOND RV-R670S WiFi was able to suck up debris from a 2 mm deep crevice, just like most similar devices. But this is generally sufficient for automatically maintaining cleanliness in your home.

Dry cleaning of laminate flooring

The collection quality of various types of debris from hard floors is also average. Corners remain unswept, and a small amount of debris remains along the baseboards near the corners. However, the majority of debris is still collected. We can see some hair and fur tangled around the brush, while the rest is collected in the dust bin.

Cleaning the carpet

The carpet cleaning performance was above average. After cleaning, the carpet was free of debris, including hair and lint. The test was passed successfully.

Wet cleaning

There are no particular complaints about the quality of the dirt removal. The robot vacuum was able to remove slightly dried dirt. Only a narrow, unwashed area along the baseboard remained, which robot vacuums are currently unable to clean due to their design.

Obstacle clearance

According to the manufacturer, the REDMOND RV-R670S WiFi can overcome obstacles up to 20 mm high, but in reality, during testing, it only managed to overcome a 15 mm threshold, and a 2 cm threshold proved too difficult. This model's maneuverability isn't the best.

Driving on dark surfaces

There are also problems with dark surfaces. The robot vacuum cleaner detects a black rug as a height difference. However, it's worth noting that this is a problem with most robot vacuum cleaners.

Noise level

Finally, we measured the noise level of the REDMOND RV-R670S WiFi in different modes. In floor polishing mode, with the suction disabled, the noise level is around 55-58 dB, which is quite quiet. At minimum power, the noise level is around 60-62 dB, at medium power, it reaches 64 dB, and at maximum power, the peak was 68 dB. Overall, the noise level is standard for a robot vacuum cleaner.

Let's sum it up

REDMOND RV-R670S WiFi has been thoroughly reviewed and tested. our evaluation system he was able to dial 66 out of 100 pointsThe result is standard, considering the cost.

Overall rating of robot vacuum cleaners tested on robovac.washerhouse.com: https://robovac.washerhouse.com/en/rejtingi/robovac-obshhij-rejting-robotov-pylesosov-robo.html.

As for my personal opinion about this robot, I definitely liked it:

1. Good navigation.
2. Saving multiple cleaning maps in memory.
3. Possibility of control not only through the application, but also with the remote control, as well as via Alice.
4. Moving in a herringbone pattern in floor cleaning mode.
5. Support for voice alerts in Russian, as well as creative voice commands recorded by the owner.
6. Complete set.
7. Availability of full warranty support from the manufacturer.

Among the disadvantages I would like to highlight:

1. The robot cannot vacuum and wash the floor at the same time.
2. Not very good obstacle clearance.
3. Fear of dark surfaces, which the robot vacuum cleaner recognizes as elevation changes.
4. There are no advanced features in the map control mode (for example, selecting rooms for cleaning, manually changing room boundaries, or setting up an individual cleaning mode for each room).

Overall, this robot vacuum left a positive impression after reviewing it. If these comments aren't too critical for you, I recommend considering this model, especially considering the price below $300, which is quite reasonable for a robot with good navigation, all the important features, and high-quality manufacturer support.

On that note, I'd like to end this video review. If you have any questions, please ask them in the comments. Happy shopping, everyone. Bye!