Redmi Turbo 4: Flagship Experience at 1999, the King of Value Evolves

Redmi Turbo 4: Flagship Experience at 1999, the King of Value Evolves1999 has been a symbolic price point in the Chinese smartphone market, representing ultimate value for money. Xiaomi rose to prominence by offering flagship-level experiences at this price

Redmi Turbo 4: Flagship Experience at 1999, the King of Value Evolves

1999 has been a symbolic price point in the Chinese smartphone market, representing ultimate value for money. Xiaomi rose to prominence by offering flagship-level experiences at this price. Now, Redmi has inherited this price segment and continues to excel with its Turbo series. This week's Redmi Turbo 4 launch maintains the 1999 starting price, making it extremely attractive to budget-conscious consumers. This phone showcases impressive capabilities in design, performance, battery life, quality, and imaging, achieving an almost flawless "full-level" standard.

I. Design: Pure Straight Screen, Two-Tone Design, Powerful Visual Impact

Redmi Turbo 4 features refined improvements over the Turbo 3, boasting a completely redesigned and visually striking appearance. It adopts a purer straight-screen design, transitioning from a micro-curved back to a completely flat design, creating a simple yet elegant overall style. However, this isn't just minimalist; Redmi incorporates a striking red accent line on the back, cleverly separating the smooth surface from the diamond-patterned matrix area, creating a strong two-tone effect and a powerful visual impact.

The rear camera retains a vertical dual-camera design, but the flash area is significantly smaller and integrated with the camera module, forming a unified oblong shape. The two lenses aren't directly embedded but use a stepped design, creating a unique "turbine double ring" shape, cleverly concealing a light strip. When the phone is placed face down, the light strip flashes to indicate charging, incoming calls, or received messages a practical and stylish feature.

The phone features a right-angled side frame with curved edges, allowing it to stand steadily on a flat surface. The phone is only 8.06mm thick and weighs 203.5 grams, remarkably slim considering its 6550mAh large-capacity battery. Furthermore, the Redmi Turbo 4 boasts IP66+IP68+IP69K full-level water and dust resistance, with a waterproof depth of 2 meters, and even supports wet-hand operation usable directly after retrieval from water, showcasing Redmi's dedication to quality.

The front features a 6.67-inch 1.5K resolution "Qing Shan eye protection screen" supporting DC dimming and 1920Hz high-frequency PWM mixed dimming to effectively reduce screen flicker and eye strain. The screen supports 16,000 levels of automatic brightness adjustment, automatically adjusting color temperature based on ambient light for a more comfortable viewing experience. Screen quality is also excellent, with a measured global brightness of 980.3 nits and a peak brightness of 3200 nits, ensuring clear display even in bright sunlight. Moreover, the maximum brightness can be sustained for 15 minutes with lower power consumption than before.

II. Performance: Dimensity 8400-Ultra Debut, Flagship-Level Performance, Long-Lasting Battery Life

The Redmi Turbo series has always been known for its powerful performance, consistently utilizing high-performance chip platforms. The Redmi Turbo 4 is no exception, featuring the newly launched MediaTek Dimensity 8400-Ultra processor, marking its debut. It also boasts flagship-level LPDDR5X+UFS4.0 storage, ensuring smooth operation.

The Dimensity 8400-Ultra utilizes TSMC's second-generation 4nm process. Its CPU features a full-large-core design with eight A725 large cores, offering a 15% performance increase and a 35% power reduction compared to the previous generation A715 core. The eight cores are differentiated by frequency, resulting in a 1+3+4 architecture with frequencies of 3.25GHz, 3.0GHz, and 2.1GHz respectively. Furthermore, the Dimensity 8400-Ultra features enhanced cache specifications; the L2 cache for the three clusters is 1MB, 512KB, and 256KB respectively (same as Dimensity 9300), effectively reducing access latency and improving efficiency. The GPU is a Mali-G720 MC7 with a frequency of up to 1.3GHz, providing powerful graphics processing capabilities. The NPU is upgraded to NPU880, significantly improving AI computing power; and the image processing is upgraded to the Imagiq 1080 image processor, the same generation as the Dimensity 9400.

In summary, the Dimensity 8400-Ultra delivers exceptional performance with a 41% increase in CPU multi-core performance and a 44% reduction in power consumption; GPU performance is increased by 24% with a 42% reduction in power consumption. The Redmi Turbo 4 achieves an AnTuTu benchmark score of 1,809,530 at room temperature, with GeekBench 6 single-core and multi-core scores of 1641 and 6579 respectively. At the 1999 price point, this performance is unmatched.

In terms of cooling, the Redmi Turbo 4 upgrades to a 5000-square-millimeter 3D Ice Peak circulating cooling pump system, with the vapor chamber directly contacting the SoC and high-performance graphite for rapid heat dissipation. Redmi states that the Turbo 4 achieves steady-state thermal equilibrium at a 5W power consumption scenario, maintaining high-performance output.

In gaming tests, Genshin Impact at the highest graphics setting achieved an average frame rate of 59.57fps over 30 minutes, with smooth gameplay and minimal frame rate fluctuations affecting the visual experience. The average power consumption was 5.53W, demonstrating relatively low power consumption. The front temperature was 41.2C, and the back temperature was 43.2C, indicating that the Turbo 4 maintains stable thermal equilibrium in mainstream games and effectively controls heat generation during extended gameplay for a comfortable gaming experience. With the support of the "Rage Engine," the Redmi Turbo 4 offers a flagship-level gaming experience and supports super-resolution capabilities, enabling 1.5K resolution gameplay.

III. Battery Life: 6550mAh Large Battery, 90W Fast Charging, Powerful Endurance

The Redmi Turbo 4 delivers a surprise in battery life, featuring a 6550mAh high-capacity silicon-oxygen anode battery with an energy density of 825Wh/L and long lifespan, retaining over 80% capacity after 1600 charge cycles. A 3-hour battery life test showed 72% remaining battery, suggesting a theoretical continuous usage time of nearly 11 hours, demonstrating strong battery life even compared to phones specifically designed for endurance.

In terms of fast charging, the Redmi Turbo 4 uses 90W wired fast charging and is compatible with PD fast charging protocol. Tests show that charging from 1% to 50% takes 15 minutes, and charging to 100% takes 40 minutes, with a full charge achieved in 50 minutes. Considering its massive battery capacity, this charging speed is highly satisfactory. Even a 15-minute quick charge is enough to power several hours of use. Additionally, the Turbo 4's battery has low-temperature tolerance; a built-in dual boost chip allows for boosting in low-temperature environments, ensuring the proper operation of components.

IV. Imaging: 50MP Main Camera, Casual Shots, Effortless Rescue of "Bad Shots"

The Redmi Turbo 4 features a dual rear camera setup: main camera + ultra-wide, sufficient for most users' photography needs. For a 1999 phone, the main camera's imaging capabilities are crucial. The Turbo 4 uses a 50MP Samsung LYT-600 sensor with a large F/1.5 aperture and a 1/1.95-inch sensor size, already quite impressive at this price point. Supported by flagship-level algorithms, the Turbo 4 shows significant improvements in portraiture, color, and tone.

Practical usage demonstrates the Redmi Turbo 4's highly accurate color reproduction, satisfactory clarity at 2x zoom, and precise HDR algorithm triggering in daily shooting. Overall, casual shots produce good photo results, more than sufficient for users prioritizing performance and experience.

Furthermore, the Redmi Turbo 4 enhances Live Photo capabilities, supporting editing, cover selection, and direct sharing to social media platforms. In terms of post-processing, in addition to existing features like image expansion and blemish removal, it also adds image quality restoration and reflection removal, enabling the easy rescue of even "bad shots."

V. Conclusion: 1999, Unmatched Value for Money

Our experience with the Redmi Turbo 4 confirms it as a well-rounded excellent phone. Its 1999 starting price dictates its positioning; while all aspects might not be entirely flagship-level, each performs admirably, with no obvious shortcomings. The Redmi Turbo 4's specifications include NFC, X-axis linear motor, stereo speakers, and an under-screen fingerprint sensor, making the claim of "no shortcomings" entirely accurate.

Key highlights of the Redmi Turbo 4 include the Dimensity 8