Oppo A5i Pro 5G VS Xiaomi Redmi 15 5G

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G both feature water resistance, but the Oppo model has an IP65 rating, which is slightly higher than the Xiaomi’s IP64 rating, indicating better protection against dust and water. In terms of physical dimensions, the Oppo A5i Pro 5G weighs 194 g and has a thickness of 8 mm, while the Xiaomi Redmi 15 5G is a bit heavier at 224 g and slightly thicker at 8.6 mm. The Redmi 15 is also wider (82.1 mm) and taller (171.1 mm) compared to the Oppo (76.2 mm and 165.7 mm), resulting in a larger overall volume of 120.8 cm³ compared to the Oppo's 101.0 cm³.

Both phones lack a rugged build and neither can be folded, meaning their designs are more typical of modern smartphones in this price range. The Oppo A5i Pro 5G, with its smaller dimensions and lower weight, might feel more compact and easier to handle, while the Xiaomi Redmi 15 5G, being larger and heavier, may offer a different feel in hand.

In summary, the Oppo A5i Pro 5G is slightly more compact and has a higher IP rating, but the Xiaomi Redmi 15 5G offers a larger size and heavier build with a slightly lower IP rating.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G both feature LCD, IPS displays, but differ in several key areas. The Oppo A5i Pro 5G has a 6.67″ screen with a pixel density of 394 ppi, while the Xiaomi Redmi 15 5G offers a larger 6.9″ screen with a significantly lower pixel density of 254 ppi. In terms of resolution, the Oppo has a 720 x 1604 px display, which is lower than the Xiaomi's 1080 x 2340 px resolution, giving the Redmi 15 a higher clarity.

Both models support branded damage-resistant glass, but the Oppo uses the more advanced Gorilla Glass 7i, whereas the Xiaomi uses the older Gorilla Glass 3. Neither device supports HDR10, HDR10+, Dolby Vision, or an Always-On Display, and neither has a secondary screen. The refresh rate also differs: the Oppo has a 120Hz refresh rate, while the Redmi 15 offers a higher 144Hz refresh rate, making the Xiaomi's display potentially smoother during high-intensity use.

Both smartphones have touch screens, but the Oppo A5i Pro 5G’s display is smaller with a higher pixel density, while the Xiaomi Redmi 15 5G offers a larger display with a higher refresh rate but a lower pixel density and a lower resolution.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G share several key performance specs, but there are some differences in the details. Both phones have 256GB of internal storage and 8GB of RAM, and both feature a 6 nm semiconductor size. They are also equipped with 64-bit support, integrated LTE, and DirectX 12 compatibility, along with big.LITTLE technology for efficient CPU performance. However, the Oppo A5i Pro 5G runs on the MediaTek Dimensity 6300 chipset, while the Xiaomi Redmi 15 5G uses the Qualcomm Snapdragon 6s Gen 3 chipset.

When it comes to CPU performance, the Oppo A5i Pro 5G features a CPU with a configuration of 2 cores at 2.4 GHz and 6 cores at 2 GHz, while the Xiaomi Redmi 15 5G has a similar setup, but with the two high-performance cores clocked at 2.3 GHz. Both models feature an 8-thread CPU, but only the Oppo phone supports multithreading. The GPU clock speed is the same for both devices at 950 MHz, with the Oppo using the Arm Mali-G57 MC2 GPU and the Xiaomi utilizing the Adreno 619 GPU.

One notable difference is in the memory bandwidth: the Oppo A5i Pro 5G supports a maximum memory bandwidth of 17.07 GB/s, slightly surpassing the Xiaomi's 17 GB/s. Additionally, while both phones support 8GB of maximum RAM, the Oppo has a higher maximum memory capacity of 12GB, which may allow for better performance in certain scenarios, though it is limited to 8GB of RAM in the current configuration. The RAM speed is identical for both at 2133 MHz, and both phones use DDR4 memory.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G both offer 50 MP main cameras, but the Oppo features a dual-lens setup with a secondary 2 MP camera, while the Redmi 15 has a single-lens main camera. The Oppo’s main camera has a wide aperture of f/2.4 and f/1.8 for the two lenses, whereas the Xiaomi’s main camera has a wider f/1.8 aperture. Both phones include phase-detection autofocus and continuous autofocus for video recording, but the Oppo supports video at 1080 x 60 fps, offering smoother video than the Xiaomi's 1080 x 30 fps capability.

On the front, the Oppo A5i Pro 5G has a 5 MP camera with a f/2.2 wide aperture, while the Xiaomi Redmi 15 5G has an 8 MP front camera with a slightly smaller f/2 aperture. Neither device supports a front-facing LED flash, but both phones feature a flash on the main camera. The Oppo’s camera supports a range of features like manual exposure, manual ISO, serial shot mode, and can create panoramas in-camera. Both models have a timelapse function, but the Xiaomi lacks built-in optical image stabilization for the main camera, which the Oppo includes.

Overall, the Oppo A5i Pro 5G provides more versatility in its camera setup, especially with the dual-lens main camera and higher video recording capabilities. The Xiaomi Redmi 15 5G, however, has a higher resolution front camera and a simpler, single-lens main camera configuration.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G both run on Android-based operating systems, with the Oppo A5i Pro 5G featuring Android 16 and the Xiaomi Redmi 15 5G running on Android 15. Despite this difference, both devices share a broad range of similar features. They both support clipboard warnings, location privacy options, camera/microphone privacy options, theme customization, app tracking blocking, on-device machine learning, and notification permissions. Additionally, both support features like dark mode, media picker, battery health check, extra dim mode, dynamic theming, and split-screen functionality.

Both devices also support customizable notifications, Live Text, full-page screenshots, PiP (Picture in Picture), widgets, offline voice recognition, voice commands, device location tracking, and a multi-user system. Neither phone receives direct OS updates, but both are free and open source. Neither device supports Wi-Fi password sharing, has focus modes, or supports the Quick Start feature. Additionally, both offer the ability to offload apps, have manual exposure control, and include a child lock feature.

While both devices are quite similar, the key difference lies in the Android version, with the Oppo A5i Pro 5G running Android 16 and the Xiaomi Redmi 15 5G on Android 15, which could imply a slight difference in feature availability or future updates. There are no other significant differences in the core functionalities provided by the operating systems.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G have sizable batteries, with the Oppo A5i Pro 5G featuring a 6000 mAh battery and the Xiaomi Redmi 15 5G offering a larger 7000 mAh battery. Both devices support fast charging, but the Oppo supports a higher charging speed of 45W, while the Xiaomi supports 33W fast charging. Neither device supports wireless charging or reverse wireless charging, and both phones have a rechargeable battery, a battery level indicator, and a non-removable battery.

Both smartphones are similar in terms of battery features, though the Xiaomi Redmi 15 5G offers slightly more battery capacity, while the Oppo A5i Pro 5G provides faster charging capabilities.

Overall, the Xiaomi offers a larger battery, but the Oppo charges faster, which could make a difference depending on your needs for battery life versus charging speed.

The Oppo A5i Pro 5G and Xiaomi Redmi 15 5G have different audio configurations. The Oppo A5i Pro 5G does not have a 3.5 mm audio jack socket but features stereo speakers, and supports advanced Bluetooth audio codecs such as aptX, LDAC, and aptX HD. However, it does not support aptX Adaptive, aptX Lossless, or a radio. On the other hand, the Xiaomi Redmi 15 5G retains a 3.5 mm audio jack, but lacks stereo speakers and support for any of the aptX audio codecs (aptX, LDAC, aptX HD, aptX Adaptive, aptX Lossless). The Xiaomi model also includes a radio, which the Oppo does not have.

In summary, while the Oppo A5i Pro 5G offers stereo speakers and better Bluetooth codec support, the Xiaomi Redmi 15 5G gives users the option for wired audio through the 3.5 mm jack and includes a radio feature.

Both devices have their distinct audio strengths, with the Oppo favoring wireless audio technology and the Xiaomi offering a more traditional wired connection and radio support.

Both the Oppo A5i Pro 5G and Xiaomi Redmi 15 5G support 5G connectivity, dual SIM cards, and feature NFC, USB Type-C, and Bluetooth, though with slight differences. The Oppo A5i Pro 5G has Bluetooth version 5.4, while the Xiaomi Redmi 15 5G uses Bluetooth version 5.1. The download speed for the Oppo is 3300 MBits/s, surpassing the Xiaomi's 2500 MBits/s. Both phones feature a fingerprint scanner, GPS, compass, accelerometer, and a cellular module, ensuring solid connectivity features.

In terms of additional sensors, the Oppo A5i Pro 5G includes a gyroscope and supports Galileo navigation, while the Xiaomi Redmi 15 5G lacks a gyroscope but also supports Galileo. Neither phone has an infrared sensor, barometer, HDMI output, 3D facial recognition, iris scanner, or built-in projector. Both phones also lack emergency SOS via satellite and crash detection.

Both smartphones have similar overall connectivity features, with the Oppo offering a slightly faster download speed, a newer Bluetooth version, and the addition of a gyroscope. The Xiaomi, however, provides comparable features without the extra sensor.

Both the Oppo A5i Pro 5G and Xiaomi Redmi 15 5G share a few key features in the Miscellaneous category. Both devices include a video light for better low-light photography, but neither has sapphire glass, a curved display, or an e-paper display. These specifications are identical between the two phones.

In summary, the Oppo A5i Pro 5G and Xiaomi Redmi 15 5G are very similar in terms of extra features, with both providing a video light and lacking other premium display or material features.

Ultimately, there are no significant differences between the two products in this category, as they both offer the same set of features.