Realme C85 Pro VS Xiaomi Redmi K90 (256GB / 12GB RAM)

The Realme C85 Pro and Xiaomi Redmi K90 both offer waterproofing, but the depth ratings differ. The Realme C85 Pro has a more impressive IP69 rating, meaning it is resistant to dust and can withstand immersion up to 6 meters in water. In comparison, the Xiaomi Redmi K90 holds an IP68 rating, offering protection against dust and immersion in water up to 1.5 meters.

When it comes to weight, the two devices are almost identical, with the Realme C85 Pro weighing 205 g and the Xiaomi Redmi K90 slightly heavier at 206 g. Both phones are relatively light for their size, with the Xiaomi being marginally heavier.

Dimensions show some difference as well. The Realme C85 Pro has a width of 78 mm, a height of 164.4 mm, and a thickness of 8.1 mm. The Xiaomi Redmi K90 is slightly more compact with a width of 75.3 mm, a height of 157.5 mm, and a thickness of 8 mm. The Realme C85 Pro is taller and slightly thicker, while the Xiaomi Redmi K90 is a bit more narrow and shorter. Volume-wise, the Realme C85 Pro is also larger at 103.87 cm³ compared to the Xiaomi’s 94.88 cm³, reflecting its larger dimensions.

The display specifications of the Realme C85 Pro and Xiaomi Redmi K90 show notable differences. The Realme C85 Pro features a 6.8″ LCD, IPS screen with a resolution of 1080 x 2344 px and a pixel density of 254 ppi. In contrast, the Xiaomi Redmi K90 boasts a 6.59″ OLED/AMOLED display, offering a higher resolution of 1156 x 2510 px and a much sharper pixel density of 419 ppi.

Both phones support a 120Hz refresh rate, ensuring smooth scrolling and gameplay. However, the Xiaomi Redmi K90 has a distinct advantage in display features with support for HDR10, HDR10+, Dolby Vision, and an Always-On Display, while the Realme C85 Pro lacks support for these technologies.

Another difference is in the display protection. The Xiaomi Redmi K90 includes branded damage-resistant glass, while the Realme C85 Pro does not specify any such protection. Both devices have a touchscreen, and neither includes a secondary screen.

The Realme C85 Pro and Xiaomi Redmi K90 are equipped with different performance configurations. Both phones feature 256GB of internal storage, but the Realme C85 Pro comes with 8GB of RAM, while the Xiaomi Redmi K90 offers a larger 12GB of RAM. This difference may affect multitasking and memory-intensive tasks.

The Realme C85 Pro is powered by the Qualcomm Snapdragon 685 4G chipset, with an octa-core CPU (4 x 2.8 GHz & 4 x 1.9 GHz) and an Adreno 610 GPU running at a clock speed of 1260 MHz. In comparison, the Xiaomi Redmi K90 has a more powerful Qualcomm Snapdragon 8 Elite chipset, featuring a higher clocked octa-core CPU (2 x 4.32 GHz & 6 x 3.53 GHz) and an Adreno 830 GPU with a clock speed of 1100 MHz.

In terms of benchmark performance, the Xiaomi Redmi K90 significantly outperforms the Realme C85 Pro. The Xiaomi scores 10059 in Geekbench 6 (multi-core) and 3234 (single-core), while the Realme C85 Pro scores 1510 (multi-core) and 473 (single-core). Additionally, the Xiaomi Redmi K90 benefits from faster RAM speed (5300 MHz vs. 2133 MHz) and a smaller 3 nm semiconductor size, compared to the Realme’s 6 nm. The Xiaomi’s maximum memory bandwidth is also much higher at 85.1 GB/s, compared to the Realme's 17 GB/s. Other performance features, such as the support for DirectX 12, integrated LTE, and maximum memory amounts (24GB for Xiaomi vs. 16GB for Realme), further highlight the differences in their processing power.

The Realme C85 Pro and Xiaomi Redmi K90 differ significantly in their camera setups. The Realme C85 Pro features a single 50 MP main camera with a 1.8f wide aperture, while the Xiaomi Redmi K90 has a multi-lens main camera setup with a 50 MP primary sensor, a 50 MP secondary sensor, and an 8 MP third sensor, with wide apertures of 1.9f, 2.2f, and 2.2f, respectively. The Xiaomi's multi-lens system provides more versatility in capturing different types of shots.

For the front cameras, the Realme C85 Pro is equipped with an 8 MP front camera, while the Xiaomi Redmi K90 has a much higher resolution 20 MP front camera. Both phones include features like phase-detection autofocus, continuous autofocus for video, and manual exposure. However, the Xiaomi also offers laser autofocus, while the Realme does not.

In terms of video recording, the Realme C85 Pro can record in 1080p at 60 fps, whereas the Xiaomi Redmi K90 supports higher resolution video recording at 4320p (8K) at 30 fps. Both devices support slow-motion recording, HDR mode, and timelapse functions. Additionally, the Xiaomi provides optical zoom at 2.5x, which the Realme lacks, and it also supports raw shooting, unlike the Realme C85 Pro.

The Realme C85 Pro and Xiaomi Redmi K90 run on different versions of Android. The Realme C85 Pro is equipped with Android 15, while the Xiaomi Redmi K90 uses the newer Android 16. Despite this version difference, both phones share many similar operating system features, including clipboard warnings, location privacy options, camera/microphone privacy options, theme customization, and the ability to block app tracking.

Both devices support dark mode, battery health checks, dynamic theming, app offloading, customizable notifications, Live Text, full-page screenshots, and split-screen functionality. They also share features like PiP (Picture-in-Picture), voice commands, offline voice recognition, multi-user system support, and the ability to track the current position of the device. Neither phone gets direct OS updates.

There are a few additional similarities, such as both having Wi-Fi password sharing, extra dim mode, media pickers, and the ability to play games while they download. However, neither device supports Quick Start, Mail Privacy Protection, or blocks cross-site tracking. The Xiaomi Redmi K90 and Realme C85 Pro both have a child lock, support widgets, and are free and open source, but the Realme C85 Pro lacks focus modes, which the Xiaomi does not.

The Realme C85 Pro and Xiaomi Redmi K90 are both equipped with large batteries, but with slightly different capacities and charging speeds. The Realme C85 Pro has a 7000 mAh battery, while the Xiaomi Redmi K90 offers a slightly larger 7100 mAh battery. Both devices support fast charging, but the Xiaomi charges at a much faster rate of 100W compared to the 45W charging speed of the Realme C85 Pro.

Neither phone supports wireless charging, and both devices lack removable batteries. However, the Xiaomi Redmi K90 stands out with its ability to support reverse wireless charging, which is not available on the Realme C85 Pro. Both phones feature a battery level indicator and have rechargeable batteries, ensuring they are ready for daily use without the need for frequent replacements.

Overall, while both devices provide strong battery performance, the Xiaomi Redmi K90 offers faster charging and the added benefit of reverse wireless charging, which the Realme C85 Pro does not have.

Both the Realme C85 Pro and Xiaomi Redmi K90 lack a 3.5 mm audio jack, meaning users must rely on wireless audio or USB-C for wired connections. The Realme C85 Pro does not have stereo speakers, whereas the Xiaomi Redmi K90 does feature stereo speakers, offering a more immersive audio experience.

Neither phone supports high-quality audio codecs such as aptX, LDAC, aptX HD, aptX Adaptive, or aptX Lossless, so audio quality through Bluetooth will be similar between the two devices. Additionally, neither phone includes an FM radio.

In summary, while both phones have basic audio features, the Xiaomi Redmi K90 stands out with its stereo speaker setup, which the Realme C85 Pro lacks.

The Realme C85 Pro and Xiaomi Redmi K90 offer different levels of connectivity and features. The Realme C85 Pro lacks 5G support, while the Xiaomi Redmi K90 includes 5G, providing faster network speeds. Wi-Fi support is similar on both phones, with the Realme supporting Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), and the Xiaomi supporting a broader range that includes Wi-Fi 6 (802.11ax) and Wi-Fi 7 (802.11be), offering better Wi-Fi options for the Xiaomi.

Both phones use 2 SIM cards and feature Bluetooth 5, but the Xiaomi Redmi K90 has a slightly newer Bluetooth version, 5.4, compared to the Realme's 5. The Realme C85 Pro has an external memory slot, while the Xiaomi does not, limiting storage expansion on the latter. Additionally, the Xiaomi offers significantly faster download and upload speeds (10,000 MBit/s download, 3500 MBit/s upload) compared to the Realme’s 390 MBit/s download and 150 MBit/s upload.

In terms of sensors, both phones include essential features like GPS, a compass, accelerometer, and a fingerprint scanner. The Xiaomi has an added infrared sensor, which is not available on the Realme C85 Pro. The Realme C85 Pro, however, supports Galileo positioning. Neither phone supports features like 3D facial recognition, iris scanners, or a built-in projector. Both devices are capable of using a USB Type-C port, but the Xiaomi offers USB version 3.2, whereas the Realme uses USB version 2.

Both the Realme C85 Pro and Xiaomi Redmi K90 feature a video light, making them suitable for low-light video recording. Neither of the phones comes with sapphire glass display protection, and neither has a curved display or an e-paper display. This means both devices have flat displays and standard glass, without the unique features seen on some premium models.

In summary, the Realme C85 Pro and Xiaomi Redmi K90 share the same core miscellaneous features, with both supporting a video light but lacking advanced display technologies such as sapphire glass, curved displays, or e-paper displays.