The best tablet is the one that best suits your needs.
Think about what exactly you intend to do with the device. Don't fall for cheap offers and advertisements. Perhaps this article will help you choose the right features for your future tablet. Overall, tablets are suitable for the following tasks: online communication, reading books, browsing websites, and watching TV shows and movies. More powerful devices are also good for education and office work.

Operating System
HarmonyOS is an Android-based system developed by Huawei. There are quite a few tablets on this operating system, but the platform continues to evolve with new models regularly released.
For Android devices, it's easiest to find cheap but productive and quality tablets. Additionally, users have access to a large number of services, games, and programs for various tasks. However, most programs on this platform may not receive timely updates. As a result, the latest features and software fixes in devices appear with delays...
Tablets running Windows 10 or 11 are comparable in capabilities to laptops, especially when you attach a keyboard and mouse. Plus points include the ability to install full-fledged games and programs like the Microsoft Office suite. A good choice for those needing a device for work.
iPadOS devices are in the higher price segment. However, they are always high-end devices with the latest features. These system devices receive regular updates for several years after their market release.
Classic tablets are monolithic devices without moving parts. Some of them can be connected to accessories such as speakers, headphones, keyboards, and mice.
In addition, there are tablet and laptop hybrids. They are also called transformers.

Display Size
Based on the diagonal length of the screen, tablets can be divided into three categories: compact (7-8 inches), medium (9-10 inches), and large (11-13 inches).
Compact tablets are excellent for communication, most games, book reading, and web surfing. They are more convenient for these tasks than smartphones. However, with a 7-8-inch screen diagonal, it is not always sufficient for watching TV shows and movies.
Medium-sized tablets are a good balance between quality and price. They also work well if a laptop is not at hand.

Resolution and Screen Matrix
Screen resolution is measured by the number of pixels that make up the screen. The higher this setting, the sharper the image. So, it can be important for a tablet.
I would definitely not recommend getting a device with a low resolution. And if you are interested in tablets with a screen diagonal of 9 inches or more, then it is highly desirable to choose the highest possible resolution.
The matrix determines the technology on which the screen is based. This affects the overall image quality, so it's best not to overlook this parameter. Take a closer look at tablets with IPS (PLS) or OLED (AMOLED, Super AMOLED) matrices. They provide the best image quality. Other options are cheaper but much more inferior in quality.
The pixels of an OLED display can completely turn off. Thus, they transmit an image with a true black color. In this regard, there is no equal to an OLED matrix, besides, it consumes less energy than IPS. However, OLED displays can be significantly more expensive.

Storage Size
The storage capacity determines the amount of data that can be stored on a tablet. If you are buying a device for web surfing, chatting, and multimedia content streaming, then 32-64 GB of internal memory will be enough for you.
But to store music and movies on a tablet, install games and many programs, you may need much more free space.
The memory size affects the cost of the tablet. To save money, you can choose a device with a small amount of internal memory but with a slot for a memory card. It's convenient to store music and video files as well as data from some applications. But, for example, Apple tablets may not support memory cards, so it's better to choose the memory size right away.

Connectivity
You may want to connect headphones, keyboards, mice, and other devices to your tablet. In this case, choose a device that meets your requirements and habits, for example, one that supports the Bluetooth wireless standard version 5.0 or analog output. This will provide fast data exchange with the accessories you use every day.

Performance
The speed of a tablet largely depends on the architecture of the processor and its frequency, as well as the amount of RAM. But if you don't plan to use the tablet for "heavy" games or professional graphic work, then don't dwell on these characteristics, as they can be misleading. For example, an 8-core processor does not yet indicate that it is very fast, just as 4 cores do not mean slow. Even average hardware performance by modern standards is sufficient for most user tasks. Moreover, if the manufacturer poorly optimized the software, the tablet may slow down even with a high-end processor and a large amount of RAM. This is especially true for Android devices.

Battery Capacity
The battery life of a tablet depends on the battery capacity. But it is difficult to judge by this parameter how often the device will need to be charged.
However, on manufacturer websites, you can often read how many hours the device can last in a certain operating mode. Use this indicator as a guideline.

Camera
Manufacturers and sellers focus on the number of megapixels of the camera, as if this indicator completely determines the quality of video and images. This is not the case, so don't be fooled by large numbers.
Also, cameras on tablets are not as important as on smartphones since shooting long videos from a tablet is quite inconvenient.

Popular Manufacturers
1. Apple - known for their iPad series running on iPadOS, offering high-end design and technology.
2. Samsung - offers a wide range of tablets from budget to high-end, running on the Android operating system and often including their custom user interface.
3. Huawei - offers tablets running on both Android and HarmonyOS operating systems, with high performance and modern design.
4. Microsoft - known for their Surface series running on the Windows operating system, offering laptop functionality combined with tablet portability.
5. Lenovo - provides a wide range of tablets from budget to high-end, running on both Android and Windows operating systems.
6. Amazon - known for their Fire tablet series, which offer good value for money and run on the custom FireOS operating system.
These manufacturers are popular and offer a wide choice in various price categories and with different features. The main thing is to choose a tablet that best suits your needs and budget.