In late July, a new type of certificate marked with L3 began circulating among the marketing teams of Chinese smartphone manufacturers. This mark is based on a national standard published by China's Ministry of Industry and Information Technology in May for artificial intelligence-enabled terminals.
The first batch of test results, released on July 17, included 11 qualified devices. These comprised nine smartphones and two tablets from brands such as Huawei, Motorola, Honor, vivo, OPPO, Xiaomi, and Stepfun.
It is important to note that this certification is not a regulatory barrier; a phone does not need to pass any tests to be released with the L3 mark, nor did the models not included in the first batch fail any tests. The standard serves as a guideline for carriers, application developers, and procurement groups, helping to determine which devices can perform planning tasks, make calls, and remember user preferences, versus those that remain mere voice interfaces of chatbots.
The L3 marking is also not the pinnacle of the hierarchy. The MIIT document defines five dimensions—perception, cognition, execution, memory, and learning—as well as 14 sub-capabilities with clear levels from L1 to L4. However, the first batch was only assessed up to level L3. Nevertheless, manufacturers are actively using this terminology, referring to L3 as the current highest level.
Technically, this description is accurate, but it omits the second half: level L4 has been intentionally left blank because the rules governing agent delegation, error handling, and cross-platform interaction have not yet been developed. This distinguishes phone agents from autonomous driving systems, despite the common L1 to L4 scale. Automotive ratings are determined by the transfer of responsibility between the driver and the vehicle, whereas phone ratings focus on task complexity, tool orchestration, and memory.
A phone capable of planning a multi-day trip, including booking hotels, calendars, and payments, must still return control to the user for any irreversible actions. Thus, the empty space at L4 indicates not an incompleteness of the models, but that cooperation rules are not yet ready.
For end consumers, the situation is simple. Most flagship phones already meet the L2 level, which functions as a chatbot with good tool-calling capabilities. L3 devices are already available for purchase, such as the Huawei Pura X Max and the Motorola line from Lenovo. Furthermore, using L3 features does not require purchasing a new device. The next significant step will involve not hardware upgrades, but the adoption of regulations.
Xiaomi reinforces its presence in the Brazilian market by making powerful smartphones at accessible prices available, and the current offers on Amazon demonstrate this proposal. Three models were selected, ranging from the entry-level to the mid-range category, ideal for those who want to upgrade their device while maintaining a good level of performance.
The Redmi 15C was launched targeting users looking for a reliable device for daily use without difficulties. Equipped with 8GB of RAM and 256GB of internal storage, it offers ample space to store photos, videos, and applications. Its Midnight Black design gives it an elegant and sober look, while the Redmi line's hardware ensures smooth operation during daily tasks.
The Redmi Note 15 represents a significant advance compared to previous versions of the series, focusing on more efficient cameras, a high refresh rate screen, and long battery life, features that qualify it well in the mid-range segment. In the Blue variant, the device combines good performance with a distinct look. Its configuration of 8GB of RAM and 256GB of storage is ready for intensive users.
In the same generation, the Redmi Note 15 is also available in Black, a classic option for those who prefer a discreet and durable finish. The specifications of this model are identical to the Blue version, including 8GB of RAM, 256GB of storage, in addition to the attributes that highlighted the Note 15 in the category, such as fast processing, multi-functional camera, and battery life superior to the average for its price range.
Since stock on Amazon can change frequently, it is recommended to check the links immediately to confirm the availability of each model. For those planning to switch phones, these three Xiaomi devices provide an excellent ratio between cost and performance, and the current conditions can be checked directly on the store through the indicated buttons.
