Oppo A5i Pro VS Xiaomi Redmi 15 5G

Both the Oppo A5i Pro and Xiaomi Redmi 15 5G offer water resistance, but with different Ingress Protection (IP) ratings: the Oppo A5i Pro is rated IP65, while the Xiaomi Redmi 15 5G is rated IP64. This indicates that the Oppo device has a slightly higher level of protection against dust and water. In terms of size and weight, the Oppo A5i Pro is lighter at 193 g and slightly smaller in thickness, measuring 8 mm thick. The Xiaomi Redmi 15 5G, on the other hand, weighs 224 g and is a bit thicker at 8.6 mm. The Redmi also has a larger volume (120.8 cm³) compared to the Oppo’s 101.0 cm³, indicating a bulkier build.

When it comes to dimensions, the Oppo A5i Pro is narrower (76.2 mm) and shorter (165.7 mm) than the Xiaomi Redmi 15 5G, which measures 82.1 mm in width and 171.1 mm in height. Both phones have no rugged build and cannot be folded, as specified in their designs.

Overall, the Oppo A5i Pro is more compact and lighter than the Xiaomi Redmi 15 5G, which has a larger and heavier build. Both have water resistance, but with slight differences in their IP ratings.

Both the Oppo A5i Pro and Xiaomi Redmi 15 5G feature LCD, IPS displays, but their screen sizes differ. The Oppo A5i Pro has a 6.67″ display, while the Xiaomi Redmi 15 5G offers a slightly larger 6.9″ screen. In terms of pixel density, the Oppo A5i Pro has a higher 264 ppi compared to the Redmi’s 254 ppi, meaning the Oppo’s display could potentially appear slightly sharper. The resolution also varies between the two: the Oppo A5i Pro has a 720 x 1604 px resolution, while the Xiaomi Redmi 15 5G boasts a higher 1080 x 2340 px resolution, providing more detail and clarity.

When it comes to refresh rate, the Oppo A5i Pro supports a 90Hz refresh rate, whereas the Xiaomi Redmi 15 5G supports a much higher 144Hz refresh rate, making the Redmi’s display potentially smoother in fast-moving visuals. Both devices have branded damage-resistant glass, with the Oppo A5i Pro using Gorilla Glass 7i, and the Xiaomi Redmi 15 5G using an older version, Gorilla Glass 3.

Neither phone supports HDR10, HDR10+, Dolby Vision, or Always-On Display, and both lack a secondary screen. They also both include a touch screen, providing a similar level of interaction. Overall, the Xiaomi Redmi 15 5G has a larger display with a higher resolution and refresh rate, while the Oppo A5i Pro offers slightly better pixel density and a more advanced Gorilla Glass version for durability.

The Oppo A5i Pro and Xiaomi Redmi 15 5G both come with 8GB of RAM, but their storage capacities differ. The Oppo A5i Pro has 128GB of internal storage, while the Xiaomi Redmi 15 5G offers 256GB, providing more space for apps, media, and files. Regarding the chipset, the Oppo A5i Pro is powered by the Qualcomm Snapdragon 6 Gen 1, whereas the Xiaomi Redmi 15 5G features the Qualcomm Snapdragon 6s Gen 3. Both devices have a similar CPU configuration, with the Oppo running at 4 x 2.2 GHz and 4 x 1.8 GHz, while the Redmi operates at 2 x 2.3 GHz and 6 x 2 GHz.

Both smartphones use big.LITTLE technology with 8 CPU threads, integrated LTE, and support for 64-bit architecture. The Oppo A5i Pro's GPU is the Adreno 710, while the Xiaomi Redmi 15 5G uses the Adreno 619. The Oppo's GPU clock speed is 800 MHz, compared to the Xiaomi’s 950 MHz, meaning the Redmi may deliver slightly faster graphical performance. In terms of memory performance, the Oppo has a higher RAM speed of 2750 MHz, while the Redmi’s RAM speed is 2133 MHz, which could impact their performance in memory-intensive tasks.

The semiconductor size differs as well: the Oppo A5i Pro is built on a 4 nm process, while the Xiaomi Redmi 15 5G uses a 6 nm process. The Oppo also has a higher maximum memory bandwidth (22 GB/s) compared to the Redmi’s 17 GB/s, although both use dual memory channels and have eMMC 5.1. Additionally, the Oppo A5i Pro supports up to 12GB of RAM, while the Xiaomi Redmi 15 5G supports a maximum of 8GB of RAM. Finally, the Oppo has a slightly higher Thermal Design Power (TDP) of 7W, while the Redmi is rated at 4W.

The Oppo A5i Pro and Xiaomi Redmi 15 5G both feature a 50 MP main camera, though the Oppo includes an additional 2 MP lens, making it a dual-lens setup, while the Redmi has a single-lens main camera. The main camera's wide aperture on the Oppo is 2.4f for the 50 MP lens and 1.8f for the 2 MP lens, while the Xiaomi's main camera has a slightly wider aperture of 1.8f. Both cameras support 1080p video recording at 30 fps and share features like phase-detection autofocus, continuous autofocus during video recording, manual exposure, and the ability to create panoramas in-camera.

The front cameras also differ in megapixel count, with the Oppo A5i Pro sporting a 5 MP front camera with a 2.2f aperture, while the Xiaomi Redmi 15 5G features an 8 MP front camera with a 2f aperture. Both phones support HDR, slow-motion video recording, timelapse, and have a front flash. Neither device offers built-in optical image stabilization for either the front or rear cameras, and both lack a dual-lens front camera or a front-facing camera under the display. Both phones also have CMOS sensors, and neither supports RAW photo shooting, HDR10 recording, or Dolby Vision recording.

In terms of other camera features, both phones include manual ISO and focus settings, along with serial shot modes and touch autofocus. Neither supports laser autofocus, 360° panorama, RGB LED flash, or 3D photo/video recording capabilities.

The Oppo A5i Pro and Xiaomi Redmi 15 5G both run on Android, with the Oppo device using Android 16 and the Xiaomi running Android 15. Both devices share a similar set of features related to privacy, such as 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 they both support on-device machine learning, notification permissions, media pickers, and customizable notifications.

In terms of system functionality, both devices support dark mode, can offload apps, and feature dynamic theming. They both have battery health checks, an extra dim mode, Live Text, full-page screenshots, and PiP (Picture-in-Picture) functionality. They also support split-screen multitasking and widgets. However, neither device receives direct OS updates and lacks Quick Start features.

Additional shared features include the ability to play games while downloading, offline voice recognition, voice commands, and multi-user system support. Both devices can track the current position of the mobile device, have sharing intents, and support a child lock. Both are free and open source, offering similar core functionality for users seeking customizable and privacy-focused options.

The Oppo A5i Pro and Xiaomi Redmi 15 5G both have non-removable rechargeable batteries, but their capacities differ. The Oppo A5i Pro comes with a 6000 mAh battery, while the Xiaomi Redmi 15 5G features a larger 7000 mAh battery, offering potentially longer battery life. Both devices support fast charging, but the Oppo A5i Pro supports a higher charging speed of 45W compared to the 33W charging speed of the Xiaomi Redmi 15 5G.

Neither phone supports wireless charging or reverse wireless charging, and both include a battery level indicator to keep track of battery status. Additionally, both phones have a rechargeable battery, ensuring long-term usability.

Both the Oppo A5i Pro and Xiaomi Redmi 15 5G feature a 3.5 mm audio jack, allowing users to connect wired headphones or other audio accessories. Neither device includes stereo speakers, which means audio output will be mono from the built-in speakers. The Oppo A5i Pro supports aptX for high-quality wireless audio streaming, while the Xiaomi Redmi 15 5G lacks aptX support and does not feature any of the higher-end aptX technologies, such as aptX HD, aptX Adaptive, or aptX Lossless.

Additionally, the Xiaomi Redmi 15 5G has a radio feature, which the Oppo A5i Pro does not offer. Both devices lack LDAC support, which is often used for high-resolution audio streaming over Bluetooth.

The Oppo A5i Pro and Xiaomi Redmi 15 5G differ in terms of 5G support: the Oppo device does not have 5G support, while the Xiaomi Redmi 15 5G does. Both phones support 2 SIM cards, have USB Type-C ports (with USB version 2), and feature NFC. The Oppo A5i Pro supports a faster download speed of 2900 Mbits/s, compared to the Redmi’s 2500 Mbits/s, but the Redmi offers faster upload speeds at 1500 Mbits/s, compared to the Oppo’s 900 Mbits/s.

Bluetooth support is slightly different: the Oppo A5i Pro supports Bluetooth 5, while the Xiaomi Redmi 15 5G has Bluetooth 5.1, providing a minor improvement in connectivity. Both phones have a fingerprint scanner, GPS, a compass, accelerometer, and support Wi-Fi. Neither has an infrared sensor, barometer, HDMI output, or a built-in projector. Both devices do not use 3D facial recognition or an iris scanner, and neither includes a stylus.

Additional features of the Oppo A5i Pro include a gyroscope, Galileo support, and the ability to track the device’s position, while the Xiaomi lacks a gyroscope but supports Galileo as well. Neither device supports motion or optical tracking. Neither phone offers emergency SOS via satellite, crash detection, or DLNA certification, though both have a cellular module and share a similar set of core connectivity features.

Both the Oppo A5i Pro and Xiaomi Redmi 15 5G include a video light, which can help with low-light video recording. Neither device features sapphire glass displays, curved displays, or e-paper displays, meaning both phones have standard flat displays without the special features seen in some other devices.

The specs for these features are identical for both products, with no differences in this group.