OnePlus Ace 6 (256GB / 16GB RAM) VS Xiaomi Redmi K90

Both the OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 are waterproof, with both devices having a waterproof depth rating of 1.5 meters. The OnePlus Ace 6 has an IP69 rating, which offers slightly more protection than the IP68 rating of the Xiaomi Redmi K90, though both offer similar water resistance for everyday use.

In terms of size and weight, the OnePlus Ace 6 is a bit heavier, weighing 213 g compared to the Xiaomi Redmi K90's 206 g. The OnePlus Ace 6 is also slightly thicker at 8.3 mm, while the Xiaomi Redmi K90 is 8 mm thick. The OnePlus Ace 6 is a little larger overall, with a width of 77 mm and a height of 163.4 mm, compared to the Xiaomi Redmi K90’s 75.3 mm width and 157.5 mm height. The volume of the OnePlus Ace 6 is 104.43 cm³, while the Xiaomi Redmi K90 is a bit smaller at 94.88 cm³.

Neither device features a rugged build or the ability to fold, so both are conventional smartphone designs in that sense. These differences in size and weight might influence user preference depending on how important portability or handling comfort is.

The OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 both feature OLED/AMOLED displays, providing vibrant colors and deep contrasts. The OnePlus Ace 6 has a larger 6.83″ screen, compared to the 6.59″ display on the Xiaomi Redmi K90. This gives the OnePlus device more screen real estate, which may be noticeable during media consumption or gaming. In terms of pixel density, the OnePlus Ace 6 offers 450 ppi, while the Xiaomi Redmi K90 comes in slightly lower at 419 ppi. This suggests the OnePlus device has a bit sharper display, although both should offer clear visuals.

The resolution of the OnePlus Ace 6 is 1272 x 2800 px, providing higher pixel clarity than the Xiaomi Redmi K90’s 1156 x 2510 px resolution. Both devices support HDR10 and HDR10+, with the OnePlus Ace 6 also supporting Dolby Vision for an enhanced dynamic range in supported content. Both displays have a peak brightness of 800 nits for typical use, though the Xiaomi Redmi K90 is listed with an impressive 3500 nits, which is likely a peak brightness rating under specific conditions, making it exceptionally bright in certain scenarios.

Both devices support an Always-On Display feature, allowing the user to glance at important information even when the screen is off. The OnePlus Ace 6 boasts a much higher 165Hz refresh rate, which provides smoother scrolling and gaming experiences compared to the Xiaomi Redmi K90’s 120Hz refresh rate. Lastly, both devices have branded damage-resistant glass and touch screens, with no secondary screen present on either model.

Both the OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 are equipped with the Qualcomm Snapdragon 8 Elite chipset and the Adreno 830 GPU, offering high-end performance. Their CPU speeds are identical, with 2 cores running at 4.32 GHz and 6 cores at 3.53 GHz. Both devices have a Geekbench 6 score of 10,059 for multi-core performance and 3,234 for single-core performance, indicating that their overall processing power and speed are very similar.

When it comes to RAM, both devices feature 16GB of RAM running at 5300 MHz, with the same 3 nm semiconductor size. The OnePlus Ace 6 offers 256GB of internal storage, while the Xiaomi Redmi K90 stands out with a much larger 1024GB of internal storage. Both devices support up to 24GB of RAM, but the OnePlus Ace 6 is limited to 256GB of storage, whereas the Xiaomi device provides much more room for apps and files.

Other performance-related specs are also identical between the two, such as the maximum memory bandwidth (85.1 GB/s), GPU clock speed (1100 MHz), use of big.LITTLE technology, and multithreading capabilities. Both devices have the same L1 cache (192 KB), L2 cache (12 MB), and L3 cache (8 MB). They also share the same power efficiency with a Thermal Design Power (TDP) of 8.2W and the same support for OpenGL, OpenGL ES, DirectX 12, and OpenCL version 3. Both devices have integrated LTE and support 64-bit architecture, making them both capable of handling a wide range of tasks smoothly.

The OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 both feature multi-lens main cameras, but the setups differ in number and specifications. The OnePlus Ace 6 has a dual-lens camera with 50 MP and 8 MP sensors, with wide apertures of f/2.2 and f/1.8, respectively. In comparison, the Xiaomi Redmi K90 has a triple-lens setup, consisting of 50 MP, 50 MP, and 8 MP sensors, with f/1.9, f/2.2, and f/2.2 apertures. The OnePlus device offers optical image stabilization (OIS), while the Xiaomi device lacks this feature.

For video recording, the OnePlus Ace 6 supports 4K (2160p) video at 30 fps, while the Xiaomi Redmi K90 provides a higher resolution of 8K (4320p) video at 30 fps. The OnePlus Ace 6 also supports HDR10 and Dolby Vision recording, which the Xiaomi Redmi K90 does not. Both devices offer features such as phase-detection autofocus, continuous autofocus, and support for slow-motion recording. The OnePlus Ace 6 has a 16 MP front camera, while the Xiaomi Redmi K90 has a 20 MP front camera, providing higher resolution for selfies and video calls on the latter.

Additional features such as raw photo support, manual exposure, touch autofocus, and timelapse recording are present on both devices. The Xiaomi Redmi K90 supports 2.5x optical zoom, which is not available on the OnePlus Ace 6. Neither device has a front-facing LED flash, dual-lens front camera, or 3D photo/video recording capabilities. Both devices support in-camera panorama creation, and neither has a front-facing camera under the display.

Both the OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 run on Android 16, offering a consistent software experience between the two. Both devices share a wide range of features, including clipboard warnings, location privacy options, camera/microphone privacy options, theme customization, and the ability to block app tracking. Additionally, both have on-device machine learning, notification permissions, media picker, and the ability to play games while downloading.

When it comes to battery management, both devices have battery health checks and extra dim modes, but neither supports Wi-Fi password sharing. Features like dark mode, dynamic theming, offloading apps, customizable notifications, Live Text, and full-page screenshots are also available on both devices. The ability to use PiP (Picture-in-Picture) mode, support for split screen, and having widgets are also shared across the two phones. Both devices are free and open source, offer offline voice recognition, and have voice commands. They also support multi-user systems and track the current position of the device.

However, there are a few differences. Neither device supports Quick Start, but the OnePlus Ace 6 has a child lock feature, while the Xiaomi Redmi K90 includes a focus mode, which is not available on the OnePlus Ace 6. Both devices do not receive direct OS updates, and neither can be used as a PC. Overall, the operating systems on both devices are very similar, with only a few feature variations.

The OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 differ in battery capacity and charging features. The OnePlus Ace 6 has a larger 7800 mAh battery, compared to the Xiaomi Redmi K90's 7100 mAh battery. While both devices support fast charging, the OnePlus Ace 6 has a higher charging speed of 120W, whereas the Xiaomi Redmi K90 supports 100W fast charging. Additionally, the OnePlus Ace 6 features wireless charging, but the Xiaomi Redmi K90 does not. However, the Xiaomi Redmi K90 supports reverse wireless charging, while the OnePlus Ace 6 does not.

Both devices have a non-removable rechargeable battery and include a battery level indicator. Neither device has a removable battery. Both phones also support fast charging, which ensures quick power replenishment when needed.

Overall, while the OnePlus Ace 6 offers a larger battery capacity and faster charging, the Xiaomi Redmi K90 provides reverse wireless charging, a feature the OnePlus device lacks.

Both the OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 lack a 3.5 mm audio jack, meaning users will need to rely on wireless or USB-C headphones. Both devices feature stereo speakers, providing a better audio experience than mono speakers. In terms of wireless audio technology, the OnePlus Ace 6 supports aptX HD and aptX Adaptive, offering high-quality Bluetooth audio. The Xiaomi Redmi K90, however, does not support aptX HD or aptX Adaptive, and it also lacks aptX Lossless support.

Neither device supports LDAC or has a radio. The OnePlus Ace 6 does not support aptX Lossless, while the Xiaomi Redmi K90 does not support any form of aptX technology, including aptX HD, aptX Adaptive, or aptX Lossless.

Overall, while both devices offer stereo speakers, the OnePlus Ace 6 stands out with support for higher-end Bluetooth audio codecs like aptX HD and aptX Adaptive, whereas the Xiaomi Redmi K90 lacks these features.

The OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 are similar in many connectivity and feature aspects. Both devices support 5G, have dual SIM card slots, and are equipped with USB Type-C ports. They also both support Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), and Wi-Fi 7 (802.11be), ensuring excellent wireless network connectivity. Bluetooth 5.4 is available on both devices, providing fast and stable connections with wireless accessories.

Neither phone includes an external memory slot, but both feature NFC and fingerprint scanners for security. In terms of sensors, both devices come with a gyroscope, accelerometer, infrared sensor, compass, and GPS, offering a robust set of navigation and motion-tracking capabilities. Neither device includes features like a barometer, HDMI output, or a built-in projector, and neither offers 3D facial recognition or an iris scanner.

Both devices have identical download and upload speeds of 10,000 MBits/s and 3,500 MBits/s, respectively. They also share support for Galileo, but neither supports motion or optical tracking. The Xiaomi Redmi K90 has USB version 3.2, while the OnePlus Ace 6 uses USB version 2. Despite these differences in USB versions, both offer a solid suite of connectivity features for users looking for a reliable smartphone experience.

The OnePlus Ace 6 (256GB / 16GB RAM) and Xiaomi Redmi K90 are quite similar in their miscellaneous features. Both devices are equipped with a video light, which can help illuminate subjects for better photo and video quality in low light conditions. Neither phone features sapphire glass on the display, curved displays, or e-paper displays, so both offer a more traditional flat display experience without the advanced display technologies that these features would provide.

In summary, both devices share the same set of features in this group, with no significant differences in terms of display or additional functionalities like e-paper or curved displays. They both provide video light for enhanced photo and video capabilities in darker environments.

These phones appear to have a very similar approach in terms of their miscellaneous features, making them equally equipped for basic photo and video lighting needs without specialized display technologies.