OnePlus 15 VS Xiaomi Redmi K90 Pro Max

The OnePlus 15 and Xiaomi Redmi K90 Pro Max both offer waterproofing with an IP rating, but the specifics differ slightly. The OnePlus 15 has an IP69 rating, which generally provides higher protection against dust and water compared to the IP68 rating of the Xiaomi Redmi K90 Pro Max. However, both phones support waterproofing at depths of up to 1.5 meters.

When it comes to physical dimensions, the two devices are quite close. The OnePlus 15 weighs 215 g, while the Redmi K90 Pro Max is slightly heavier at 218 g. In terms of size, the Redmi K90 Pro Max is also a bit taller and wider, measuring 163.3 mm in height and 77.8 mm in width compared to the OnePlus 15's 161.4 mm and 76.7 mm. Both phones have similar volumes, with the OnePlus 15 at 100.27 cm³ and the Redmi K90 Pro Max at 100.37 cm³, making them virtually the same in terms of bulk.

As for thickness, the Xiaomi phone is slightly thinner at 7.9 mm, whereas the OnePlus 15 is 8.1 mm thick. Both phones do not feature a rugged build and cannot be folded, which may limit their appeal to users who prioritize these features in a device.

Both the OnePlus 15 and Xiaomi Redmi K90 Pro Max feature OLED/AMOLED displays, delivering high-quality visuals. However, their screen sizes differ slightly: the OnePlus 15 has a 6.78″ display, while the Redmi K90 Pro Max has a slightly larger 6.9″ screen. In terms of pixel density, the OnePlus 15 offers 450 ppi, which is higher than the 416 ppi of the Redmi K90 Pro Max, meaning the OnePlus 15 could offer slightly sharper visuals.

The resolution on the OnePlus 15 is 1272 x 2772 px, while the Redmi K90 Pro Max has a 1200 x 2608 px resolution. While the difference in resolution isn't vast, the OnePlus 15's higher resolution may result in a slightly crisper image. For refresh rates, the OnePlus 15 has a 165Hz refresh rate, which is higher than the 120Hz rate of the Redmi K90 Pro Max, offering smoother motion in supported apps and games. On the other hand, the Redmi K90 Pro Max has a higher touch sampling rate of 480Hz, compared to the 330Hz touch sampling rate of the OnePlus 15, which could translate into a more responsive touch experience.

Both phones come with branded damage-resistant glass, support HDR10 and HDR10+, and feature Always-On Display, so users will enjoy similar durability and screen quality enhancements. Both phones also support Dolby Vision, enhancing HDR content playback. Neither phone has a secondary screen, and both are equipped with touch screens.

Both the OnePlus 15 and Xiaomi Redmi K90 Pro Max offer impressive performance specifications. Both feature the Qualcomm Snapdragon 8 Elite Gen 5 chipset, paired with an Adreno 830 GPU, providing strong processing power and graphics capabilities. The CPUs on both devices consist of 2 cores running at 4.6 GHz and 6 cores at 3.62 GHz, ensuring efficient performance with big.LITTLE technology. The GPU clock speed is identical on both devices, set at 1200 MHz.

In terms of RAM, both phones come with 16GB of RAM, running at 5300 MHz, and support DDR5 memory. They also both feature a maximum memory bandwidth of 85.1 GB/s and utilize 2 memory channels. Additionally, they have a maximum memory capacity of 24GB, although both come with 1024GB of internal storage. As for the benchmark results, the Xiaomi Redmi K90 Pro Max scores slightly higher in AnTuTu with 4,350,000 points, compared to the OnePlus 15’s 3,434,000. On Geekbench 6, the OnePlus 15 scores 11,199 in multi-core and 3,726 in single-core, while the Xiaomi Redmi K90 Pro Max has a multi-core score of 10,059 and a single-core score of 3,234, indicating a slight edge for the OnePlus 15 in single-core performance.

Both devices also feature integrated LTE, support for 64-bit processing, and DirectX 12. They have identical OpenGL and OpenGL ES versions (3.2) and support OpenCL version 3. Neither device supports a secondary display, and both use integrated graphics. Other performance-related features include support for ECC memory, TrustZone, multithreading, and HMP, all of which are identical across both devices. The thermal design power (TDP) is 8.2W for both phones, suggesting they have similar energy efficiency.

The OnePlus 15 and Xiaomi Redmi K90 Pro Max both feature impressive triple-lens main cameras, each with 50 MP sensors. However, their apertures differ slightly, with the OnePlus 15 using a combination of 1.8f, 2f, and 2.8f for its lenses, while the Redmi K90 Pro Max offers 1.7f, 2.4f, and 3f apertures. Both phones also offer optical zoom, but the OnePlus 15 provides 3.5x zoom, while the Redmi K90 Pro Max offers a slightly higher 5x optical zoom.

For video recording, both phones support 4320 x 30 fps resolution. However, the OnePlus 15 has additional features like HDR10 and Dolby Vision recording, which the Redmi K90 Pro Max lacks. Both phones include features like continuous autofocus during video recording, phase-detection autofocus for photos, and support for slow-motion video. They also both have manual exposure and focus options, as well as the ability to shoot raw images.

Both devices have a 32 MP front camera with similar features, including wide apertures—2.4f for the OnePlus 15 and 2.2f for the Redmi K90 Pro Max. Neither device includes a front-facing LED flash, and neither has a dual-lens front camera. Both phones also support timelapse and panorama modes, and neither has a front-facing camera under the display. While both phones support touch autofocus, the OnePlus 15 offers more advanced video recording capabilities with HDR10 and Dolby Vision, features the Redmi K90 Pro Max lacks.

Both the OnePlus 15 and Xiaomi Redmi K90 Pro Max run on Android 16, offering a similar core software experience. They share a wide range of privacy and security features, including clipboard warnings, location privacy options, camera/microphone privacy options, and the ability to block app tracking. Neither device supports Mail Privacy Protection or blocks cross-site tracking, but both offer on-device machine learning, notification permissions, and media pickers.

Both phones support theme customization, dark mode, dynamic theming, and allow users to offload apps. They also feature customizable notifications, Live Text, full-page screenshots, and split-screen functionality. Additionally, both devices have PiP (Picture-in-Picture) support, a child lock, widgets, offline voice recognition, voice commands, and multi-user system capabilities. Both phones also track the current position of the device and support sharing intents.

In terms of features that are not shared, neither phone offers Quick Start, focus modes, or Wi-Fi password sharing. Both phones do not get direct OS updates, so users will need to wait for any major updates from the manufacturer. Overall, the software experience on both devices appears highly similar, with very few differences between the two in terms of core operating system features.

The OnePlus 15 and Xiaomi Redmi K90 Pro Max both feature large batteries, with the OnePlus 15 offering a 7300 mAh capacity and the Redmi K90 Pro Max slightly higher at 7560 mAh. Both phones support wireless charging at 50W, and both support fast charging, though the OnePlus 15 offers a faster charging speed of 120W compared to the 100W of the Redmi K90 Pro Max.

Both devices also support reverse wireless charging, but there is a difference in speed: the OnePlus 15 has a reverse charging speed of 10W, while the Redmi K90 Pro Max offers a faster reverse wireless charging speed of 22.5W. Neither phone has a removable battery, but both include a battery level indicator and have rechargeable batteries.

Overall, while both devices have very similar battery features, the OnePlus 15 stands out with its faster charging capabilities, while the Redmi K90 Pro Max offers a slightly larger battery and faster reverse wireless charging.

Both the OnePlus 15 and Xiaomi Redmi K90 Pro Max lack a 3.5 mm audio jack, meaning users will need to rely on wireless audio solutions or USB-C headphones. However, both devices come with stereo speakers, ensuring an enhanced audio experience for media playback.

When it comes to wireless audio technologies, the OnePlus 15 supports aptX HD and aptX Adaptive, allowing for high-quality Bluetooth audio streaming. In contrast, the Redmi K90 Pro Max does not support any of the aptX series, including aptX, aptX HD, aptX Adaptive, or aptX Lossless. Neither phone supports LDAC for high-resolution audio streaming over Bluetooth, and neither has a radio.

Overall, the OnePlus 15 offers more advanced Bluetooth audio capabilities with aptX HD and aptX Adaptive, while the Redmi K90 Pro Max is limited in this area with no support for any aptX technologies.

The OnePlus 15 and Xiaomi Redmi K90 Pro Max both support 5G connectivity, and they are equipped with similar Wi-Fi capabilities, supporting Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), and Wi-Fi 7 (802.11be). Both phones also offer dual SIM support and have USB Type-C ports with USB version 3.2, making them compatible with fast data transfer. Additionally, both phones feature NFC for easy connectivity with other devices and accessories.

When it comes to Bluetooth, the OnePlus 15 features Bluetooth version 6, while the Xiaomi Redmi K90 Pro Max is equipped with Bluetooth version 5.4. Both phones have identical download and upload speeds, with download speeds reaching 10,000 MBits/s and upload speeds of 3,500 MBits/s.

In terms of additional features, both devices include a fingerprint scanner, GPS, a compass, a gyroscope, an accelerometer, and an infrared sensor. The OnePlus 15 has a barometer, while the Redmi K90 Pro Max lacks this feature. Neither phone supports a microSD card for external memory, has 3D facial recognition, an iris scanner, a stylus, motion tracking, optical tracking, or a built-in projector. Both phones also support Galileo for satellite navigation.

Both the OnePlus 15 and Xiaomi Redmi K90 Pro Max feature a video light, allowing for enhanced lighting during video recording. Neither device includes sapphire glass displays, curved displays, or e-paper displays, so users won’t have those specific features in either model. The devices are quite similar in this category, offering essentially the same set of features.

Overall, both devices are equipped with the same key miscellaneous features, without any significant differences between them in this group.