Xiaomi Redmi K40 Pro review

The Xiaomi Xiaomi Redmi K40 Pro ranks as the #322 phones globally, achieving a LibraScore of 65. Across all metrics, this product stands out most for its #483-ranked battery among 800 phones. Consider the Xiaomi Mix Fold or Xiaomi Mix 4, which offer higher scores while staying in the same price range.

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Key takeaways
The Redmi K40 Pro offers a 4520mAh battery with 33W fast charging, ensuring all-day use and rapid recharges.
The Redmi K40 Pro’s 120Hz OLED display delivers sharp, vibrant visuals with 386 PPI, 1300 nits brightness, and a curved design for immersive viewing.
The Redmi K40 Pro offers vibrant daylight photos with a 64MP main sensor but struggles in low light due to lack of OIS and subpar night mode.
The Redmi K40 Pro’s Snapdragon 888 and 6GB RAM deliver smooth performance, but thermal throttling may impact sustained heavy workloads.
Parameters
Width
76,4 mm
Height
163,7 mm
Depth
7,8 mm
Weight
196 g
Usable surface
85 %
Plastic, Glass
Colors
Black

Build Quality and Design

The Xiaomi Redmi K40 Pro boasts a sleek, premium design with a slim 7.8 mm profile and 196 g weight, blending glass backplate and plastic frame for a modern aesthetic. Its 6.7-inch 2.5D curved OLED screen, protected by Corning Gorilla Glass 5, offers a frameless, immersive look. The device features a refined Damascus-patterned variant, elevating its visual appeal. While the plastic side frame keeps costs down, it may lack the durability of metal, requiring a case to prevent scratches. The 120 Hz refresh rate display and IP-adjacent build quality deliver a polished feel, though the absence of water resistance remains a minor oversight. Overall, the K40 Pro balances elegance with practicality, making it a stylish yet functional flagship contender. Take a look at Xiaomi Redmi K40 - its improved design sets a new standard.

Battery Life

The Xiaomi Redmi K40 Pro features a 4520 mAh battery with 33W fast charging, ensuring all-day endurance and rapid recharging. Supported by efficient power management and QC3+/PD3.0 protocols, it sustains heavy usage without frequent top-ups. While the Snapdragon 888’s thermal throttling during intensive tasks may slightly affect battery longevity, the non-removable design maintains a sleek profile. This balance of capacity, speed, and reliability makes it ideal for users prioritizing uninterrupted performance and quick recovery between sessions. If you're after top-notch battery, consider Xiaomi MI 11i.

Display

The Xiaomi Redmi K40 Pro’s 6.7-inch OLED display delivers stunning visuals with a 120Hz refresh rate, 386 PPI resolution, and peak brightness of 1300 nits, ensuring vibrant, sharp content even in sunlight. Its 2.5D curved glass design enhances the immersive feel, while HDR10+ and DCI-P3 color gamut support deliver rich, lifelike hues. The 360Hz touch sampling rate ensures responsive gaming and scrolling, paired with a hole-punch notch for an uninterrupted view. Protected by Corning Gorilla Glass 5, the screen balances durability with sleek aesthetics. Features like True Tone adaptive color tuning and MEMC (Motion Estimation/Motion Compensation) further refine the viewing experience, making it ideal for multimedia, gaming, and everyday use. It’s worth checking out Xiaomi Mi 10S, delivering remarkable display.

Camera

The Xiaomi Redmi K40 Pro’s camera system balances versatility with practicality, led by a high-resolution main sensor and complementary lenses. The 64MP primary camera captures detailed, vibrant photos in daylight, leveraging a large 1/1.7" sensor and f/1.89 aperture for sharpness and dynamic range. However, low-light performance falters due to the absence of optical image stabilization (OIS) and suboptimal night mode color accuracy. A 8MP ultra-wide lens expands framing options, while a 5MP macro shooter handles close-up shots with moderate detail. The 20MP front-facing camera, paired with a 119° wide-angle lens, ensures clear selfies and group shots, though it lacks advanced computational enhancements. Software features like HDR and scene detection refine output, but the system prioritizes quantity over quality in secondary lenses. While capable for everyday use, the setup struggles to match flagship-level refinement in challenging lighting or low-light scenarios. Give Xiaomi 12S Pro a try—it’s designed to provide an unparalleled camera.

Price and Value

The Xiaomi Redmi K40 Pro offers flagship-grade performance and features at a budget-friendly price, making it a standout value pick. With a high-refresh-rate display, Snapdragon 888 power, and 4520mAh battery, it rivals pricier rivals while sacrificing minimal durability (plastic frame) and camera refinement. Ideal for users seeking premium specs without the premium cost.

Performance

The Xiaomi Redmi K40 Pro delivers robust performance with its Qualcomm Snapdragon 888 chipset, 6GB LPDDR5 RAM, and 128GB UFS 3.1 storage, ensuring smooth multitasking and quick app launches. An Antutu score of 903,000 places it among the top 85% of devices, handling demanding apps and games effortlessly. The integrated cooling system mitigates heat, though the Snapdragon 888’s thermal throttling during extended gaming or heavy workloads may slightly impact sustained performance. Despite this, the device remains responsive for everyday use, balancing speed and efficiency for a flagship-grade experience at a competitive price. Consider discovering the power of Xiaomi Mi 10S, featuring the latest advancements in performance.

Pros

1. Vibrant 6.7-inch OLED display with 120Hz refresh rate and 386 PPI for sharp, immersive visuals.

2. Flagship Snapdragon 888 chipset with 33W fast charging and 4520mAh battery for all-day performance.

3. Robust connectivity (Wi-Fi 6, 5G dual SIM, Bluetooth 5.2) and clean Android 14 software experience.

4. Excellent value proposition with premium features at a budget-friendly price.

Cons

1. Plastic frame compromises durability and premium feel compared to metal or glass alternatives.

2. Camera struggles in low-light scenarios due to lack of optical image stabilization (OIS).

3. Snapdragon 888's thermal throttling impacts sustained performance during heavy gaming/workloads.

4. No 3.5mm headphone jack, limiting compatibility with wired audio accessories.

5. Secondary cameras (ultra-wide and macro) lack refinement and detail compared to flagship competitors.

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