Redmi 15 experience: leading the mainstream segment with 7000mAh battery and 144Hz display

With the combination of large battery capacity, silicon-carbon technology and high refresh rate screen, Redmi 15 brings a different experience compared to many competitors in the same price range.

In the mainstream smartphone segment, where specifications typically stop at a 5000mAh battery and a 60Hz screen, the Redmi 15 offers a significant difference. Priced under 5 million VND, it boasts a 7000mAh silicon-carbon battery – a technology usually found in high-end models – and a 6.9-inch screen with a 144Hz refresh rate. This combination makes the device a rare choice in its segment, creating a distinct user experience.

Design: Slim, lightweight, modern, and sophisticated on the Redmi 15.

The Redmi 15 boasts a slim 8.4mm profile and a weight of 214g, creating a rare balance for a product with a large battery capacity. The softly curved edges and neatly arranged buttons make operation convenient. The faux-metal back feels solid, while the camera module is compact and protrudes minimally from the surface, minimizing obstruction when the phone is placed on a table or in a pocket.

The accessory kit includes a 33W charger, a USB-C cable, and a protective case, fully meeting basic needs right from the start when owning the Redmi 15.

PHOTO: KHAI MINH

In terms of display, the Redmi 15 features a 6.9-inch DotDisplay with FHD+ resolution, delivering clear details. The 144Hz refresh rate ensures smooth touch interactions and reduces motion blur when scrolling or playing games. With a size close to that of a phablet, the display space is ample for basic tasks, online learning, and watching movies.

A closer look at the Redmi 15's design.

PHOTO: KHAI MINH

With a maximum brightness of 850 nits, it's sufficient for good visibility in outdoor light. Additionally, TÜV Rheinland certification for low blue light and flicker-free operation helps reduce eye strain during prolonged use. The compact, centrally located punch-hole selfie camera doesn't significantly obstruct the full-screen experience.

Performance: stable and with long battery life.

The Redmi 15 comes with HyperOS 2, adding many AI features such as AI Erase, AI Sky, Dynamic Shots, and Circle to Search. These tools make image editing quick and intuitive, while providing an experience closer to that of high-end devices. The integration with Google Gemini also expands the utility for users in work and study.

In terms of CPU, this device uses the Snapdragon 685, a mid-range processor that delivers stable performance. Popular applications and light online games run smoothly. In tests with Free Fire, the frame rate remained close to 60 FPS, providing a stable experience.

Powered by Xiaomi HyperOS 2 and featuring stable hardware, the Redmi 15 meets a wide range of needs, from entertainment to content storage.

PHOTO: KHAI MINH

The Redmi 15 is one of the few budget smartphones equipped with silicon-carbon battery technology. Its 7000mAh battery allows for an average of two days of use, significantly better than the common 5000mAh batteries in this segment. A notable feature is its battery management system, offering three different usage modes: performance-battery balance, and maximum power saving. In the highest power saving mode, the device can achieve over 100 hours of operation on a full charge, suitable for situations requiring long periods of basic connectivity.

Information on the battery and reverse charging capabilities of the Redmi 15.

PHOTO: KHAI MINH

One notable feature is its 33W fast charging support, along with 18W reverse charging for other devices. In real-world testing when reverse charging another device, the power output ranged from 12-15W. The Redmi's full charging time is also displayed for easy user monitoring.

Finally, the 50MP camera on the Redmi 15 delivers sharp images in good lighting conditions. It also features IP64 water resistance and Wet Touch 2.0 technology, ensuring smooth operation even when the screen or your hands are wet.

Overview

The Redmi 15 offers a rare combination in the budget segment: a durable 7000mAh silicon-carbon battery, a smooth 144Hz large display, and IP64 water resistance. While the Snapdragon 685's performance is only average and not quite on par with higher-end mid-range models, it's still sufficient for everyday tasks and popular games.

With these features, the Redmi 15 stands out in the sub-5 million VND smartphone category, targeting users who need a durable device with long battery life and the ability to flexibly meet various daily needs.

Source: https://thanhnien.vn/trai-nghiem-redmi-15-dan-dau-phan-khuc-pho-thong-with-7000mah-battery-and-144hz-screen-185250828004641338.htm