News written by James Delahunty (December, 2022)

Samsung sent us their modern, top-level robot vacuum cleaner for our test and review.

The Samsung Jet Bot 90 AI+ has a whopping price tag of around €1,400, and is the Korean CE giant's first attempt to push itself to the top of the world of robot vacuum cleaners.

We tested the robovac, which first went on sale in 2021, for a month and a half. As always, in our test we examine not only the cleaning power of the vacuum cleaner, but also its ease of use and especially the practicality of the device in a Finnish home.

The first half of the test period was spent in a typical and "easy" Finnish home, from the point of view of a robovac. The other half was a more challenging environment, including the presence of a pet that sheds hair, a bunch of carpets of varying thickness and shape, and a significant number of different obstacles that can make life difficult for a robot vacuum cleaner.

Due to our extensive past experience testing robot vacuum cleaners, we have a good understand of the potential challenges and problem areas that a robovac can encounter while doing its duty.

1. Samsung Jet Bot 90 Ai+ appearance and design
2. Technical information
3. Self-emptying charging dock
4. Samsung deployment
5. Samsung SmartThings smartphone app
6. Specialty: Camera surveillance
7. Activities
8. How should a robot vacuum cleaner be used?
9. Battery life
10. Carpets
11. Furniture
12. Other obstacles - and their avoidance
13. Pets
14. Problems
15. Cleaning traces
16. Summary
17. Is the Samsung Jet Bot 90 AI+ worth buying?
18. Pros
19. Cons
20. The stars

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We were given one of Samsung's new generation of robotic vacuum cleaners for a review: the new Samsung Jet Bot 80+, which is also sold under the name Samsung Jet Bot+.

It is a robot vacuum cleaner with a self-emptying dust container, which was released in the European market in 2021. Before this current series, Samsung was out of the robot vacuum business for years - bot now the company has decided to make a return to the market.

As usual, we put the robot to a work for more than three months. During our test period, the vacuum cleaner took care of cleaning the floor surfaces of two different apartments, as the only tool used for cleaning the floors.

Important to our test (as usual) is how suitable the product is for pet owners. Therefore, the test appropriately included everyday experience with how the Robo copes with pet hair and other problems that pets bring with them to the home.

The selling price for this product is around €500 in Finland, so it is placed in a difficult price segment in that sense: in the 500 euro range, top products are also available from competitors that manufacture robot vacuum cleaners, and they have more of a reputation in the market than Samsung.

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When browsing mobile phones, headphones, Bluetooth speakers, etc. a device's IP classification is often mentioned. This refers to the devices waterproof and dust-resistance rating. There are a large number of IP classifications however, and most people don't know much about them. Here, we take a look at what the numbers mean.

A typical mobile phone IP rating can be, for example, IP68. Correspondingly, you often see IP57 rating in headphones. This is actually two separate numbers: the first number means dust resistance the second number means water resistance. The higher the number, the better!

The tests are carried out in official laboratory conditions and an official, approved IP classification is given to the device after the tests are concluded.

The first number of the IP classification, dust resistance, is defined as follows:

Number	What does it mean?
0	No protection against dust at all.
1	Protection against objects up to 5 cm in size, i.e. particles larger than five centimeters cannot enter the device's structures.
2	Protection against 12.5 mm particles. That is, objects larger than a good centimeter cannot enter the device's structures.
3	Protection against 2.5 mm particles. Small, but clearly visible, quarter-centimeter-sized particles cannot enter the device's structures.
4	Protection against 1 mm particles. Pieces with a diameter of a millimeter - and pieces larger than that - cannot enter the device's structures.
5	Protected from dust. In practice, no dust gets inside the device to the extent that it would hinder the operation of the device. Dust accumulations may occur.
6	Perfectly protected against dust. Dustproof.

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Many home network problems are related to a slow Wi-Fi connection, which causes tension for all family members using a wireless network. At worst, the problems cause video stuttering, slow download speeds, and can even make remote work difficult or impossible.

Fortunately, a lot of wireless network problems are relatively easy to solve. In this guide, we listed easy tips to improve your own WLAN connection, which should work with all Internet operators.

1. What causes WiFi problems?
2. Start by measuring Internet speed
3. Does the problem affect all devices?
   • Problems with only one device? What to do?
4. Change the WLAN channel
5. Switch from 2.4GHz to 5GHz network
6. Channel width
7. Find the right place for the base station
8. Is someone else using your network?
9. Mesh network, will it help?
10. Change base station
11. Use wired Internet connection

What are the common causes of WiFi problems?

In practice, the most typical problems are caused by bad placement of the base station, obstacles and neighbors. The base station is the part of the network that transmits the WLAN signal: in many homes this is the same thing as a modem or router, which itself has a WLAN base station / router.

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Do you feel like your phone battery is draining too quickly? The phone is relatively new, but the battery doesn't last as long as you think it should? There can be many reasons for this - and some of them have clear and easy solutions.

In this guide, we go through the most typical reasons for rapid battery drain with phones, and look at potential reasons or solutions.

1. Display brightness settings
2. Display speed and accuracy
3. Network problems
   1. Force the phone to a specific network
   2. Turn off Wi-Fi
4. A program or background process gone wild
5. Monitor application's battery usage
6. Cold weather
7. Wait a while...
8. Check condition of battery
9. The battery is defective or exhausted

Screen brightness

The most battery-consuming part of your device is its display. Smartphone screens have become much larger and brighter. Therefore, the screen brightness has a huge impact on battery consumption (and how long the device will run on a single charge.)

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Sometimes, Android updates can go horribly wrong. The intentions of manufacturers are usually good. After all, new updates bring about new features, performance improvements, security improvements, etc. Every now and then, however, a new Android update can pose significant problems for end users.

For an example of when things can go wrong, you only have to look at OnePlus' infamous Android 12 update debacle. This system update was completely rejected by users of updated devices. It significantly altered the user interface of the operating system - according to many users, for the worse. In addition, some users reported that the update was plagued with bugs.

This news made a lot of users of affected headsets ponder a delay to updating the device.

But.. What happens if you don't update your phone to the latest Android version?

In summary: In the short term, nothing really!

However, after six months or more, thing start happening under the hood that the user cannot see, but which can be potentially significant issues.

Device and Data Security degrade with time

A manufacturer will stop supporting older versions of Android with updates, because a new version is available for the device and they want you to update. Unfortunately, this can include security updates too.

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