Oppo A5i Pro
Xiaomi Redmi 15C 4G

Oppo A5i Pro Xiaomi Redmi 15C 4G

Common Features

  • Both products have water resistance.
  • Both products are 8 mm thick.
  • Neither product has a rugged build.
  • Neither product can be folded.
  • Both products have a touch screen.
  • Both products support Dolby Vision.
  • Both products support a maximum of 64-bit processing.
  • Both products have integrated graphics.
  • Both products have a total of 8 CPU threads.
  • Both products support TrustZone.
  • Both products have a 1080 x 30 fps video recording capability on the main camera.
  • Both products have a single LED flash on the main camera.
  • Both products have a CMOS sensor in the main camera.
  • Both products have continuous autofocus when recording movies.
  • Both products have phase-detection autofocus for photos.
  • Both products support slow-motion video recording.
  • Both products have a 6000 mAh battery.
  • Both products have wireless charging support.
  • Both products have a 3.5 mm audio jack.
  • Both products have a USB Type-C port.

Main Differences

  • Oppo A5i Pro weighs 193 g while Xiaomi Redmi 15C 4G weighs 205 g.
  • Oppo A5i Pro has a width of 76.2 mm while Xiaomi Redmi 15C 4G has a width of 79.5 mm.
  • Oppo A5i Pro has a height of 165.7 mm while Xiaomi Redmi 15C 4G has a height of 171.6 mm.
  • Oppo A5i Pro has a volume of 101.01072 cm³ while Xiaomi Redmi 15C 4G has a volume of 109.1376 cm³.
  • Oppo A5i Pro has an IP65 rating for Ingress Protection while Xiaomi Redmi 15C 4G has an IP64 rating.
  • Oppo A5i Pro has a 6.67″ display size while Xiaomi Redmi 15C 4G has a 6.9″ display size.
  • Oppo A5i Pro has a pixel density of 264 ppi while Xiaomi Redmi 15C 4G has a pixel density of 254 ppi.
  • Oppo A5i Pro has a resolution of 720 x 1604 px while Xiaomi Redmi 15C 4G has a resolution of 720 x 1600 px.
  • Oppo A5i Pro has a 90Hz refresh rate while Xiaomi Redmi 15C 4G has a 120Hz refresh rate.
  • Oppo A5i Pro uses Gorilla Glass 7i while Xiaomi Redmi 15C 4G uses Gorilla Glass 3.
  • Oppo A5i Pro has 128GB of internal storage while Xiaomi Redmi 15C 4G has 256GB of internal storage.
  • Oppo A5i Pro has 8GB of RAM while Xiaomi Redmi 15C 4G has 4GB of RAM.
  • Oppo A5i Pro is powered by Qualcomm Snapdragon 6 Gen 1 while Xiaomi Redmi 15C 4G is powered by MediaTek Helio G81 Ultra.
  • Oppo A5i Pro has an Adreno 710 GPU while Xiaomi Redmi 15C 4G has a Mali G52 MP2 GPU.
  • Oppo A5i Pro has a CPU speed of 4 x 2.2 & 4 x 1.8 GHz while Xiaomi Redmi 15C 4G has a CPU speed of 2 x 2 & 6 x 1.8 GHz.
  • Oppo A5i Pro scores 2748 in Geekbench 6 multi-core while Xiaomi Redmi 15C 4G scores 1391.
  • Oppo A5i Pro scores 943 in Geekbench 6 single-core while Xiaomi Redmi 15C 4G scores 420.
  • Oppo A5i Pro has a RAM speed of 2750 MHz while Xiaomi Redmi 15C 4G has a RAM speed of 1800 MHz.
  • Oppo A5i Pro has a 4 nm semiconductor size while Xiaomi Redmi 15C 4G has a 12 nm semiconductor size.
  • Oppo A5i Pro has a maximum memory bandwidth of 22 GB/s while Xiaomi Redmi 15C 4G has a maximum memory bandwidth of 13.41 GB/s.
  • Oppo A5i Pro has a 2 MB L2 cache while Xiaomi Redmi 15C 4G has a 0.3 MB L2 cache.
  • Oppo A5i Pro supports a maximum of 12GB RAM while Xiaomi Redmi 15C 4G supports a maximum of 8GB RAM.
  • Oppo A5i Pro has a 50 & 2 MP dual-lens main camera while Xiaomi Redmi 15C 4G has a 50 MP single-lens main camera.
  • Oppo A5i Pro has a wide aperture of 2.4 & 1.8f in the main camera while Xiaomi Redmi 15C 4G has a wide aperture of 1.8f.
  • Oppo A5i Pro has built-in optical image stabilization while Xiaomi Redmi 15C 4G does not.
  • Oppo A5i Pro has a 5MP front camera while Xiaomi Redmi 15C 4G has an 8MP front camera.
  • Oppo A5i Pro has a front camera wide aperture of 2.2f while Xiaomi Redmi 15C 4G has a front camera wide aperture of 2f.
  • Oppo A5i Pro runs Android 16 while Xiaomi Redmi 15C 4G runs Android 15.
  • Oppo A5i Pro has a charging speed of 45W while Xiaomi Redmi 15C 4G has a charging speed of 33W.
  • Oppo A5i Pro supports aptX while Xiaomi Redmi 15C 4G does not.
  • Xiaomi Redmi 15C 4G has a radio while Oppo A5i Pro does not.
  • Oppo A5i Pro has a Bluetooth version of 5 while Xiaomi Redmi 15C 4G has a Bluetooth version of 5.4.
  • Xiaomi Redmi 15C 4G has an external memory slot while Oppo A5i Pro does not.
  • Oppo A5i Pro has a download speed of 2900 MBits/s while Xiaomi Redmi 15C 4G has a download speed of 300 MBits/s.
  • Oppo A5i Pro has an upload speed of 900 MBits/s while Xiaomi Redmi 15C 4G has an upload speed of 100 MBits/s.
  • Oppo A5i Pro has a gyroscope while Xiaomi Redmi 15C 4G does not.
  • Oppo A5i Pro has a fingerprint scanner while Xiaomi Redmi 15C 4G has a fingerprint scanner.
Specs Comparison
Oppo A5i Pro

Oppo A5i Pro

Xiaomi Redmi 15C 4G

Xiaomi Redmi 15C 4G

Design:
water resistance Water resistant Water resistant
weight 193 g 205 g
thickness 8 mm 8 mm
width 76.2 mm 79.5 mm
height 165.7 mm 171.6 mm
volume 101.01072 cm³ 109.1376 cm³
Ingress Protection (IP) rating IP65 IP64
has a rugged build
can be folded

The Oppo A5i Pro and Xiaomi Redmi 15C 4G both feature water resistance, though the Oppo model has an IP65 rating, while the Redmi 15C 4G offers an IP64 rating. This suggests the Oppo phone has slightly better protection against dust and water.

When it comes to size and weight, the Oppo A5i Pro weighs 193 g, while the Xiaomi model is a bit heavier at 205 g. The Oppo is also narrower, with a width of 76.2 mm, compared to the 79.5 mm width of the Redmi. The height of the Oppo A5i Pro is 165.7 mm, which is shorter than the Redmi 15C 4G’s height of 171.6 mm, making the Xiaomi device slightly larger overall.

In terms of thickness, both devices are the same at 8 mm. The Oppo A5i Pro has a volume of 101.01072 cm³, whereas the Redmi 15C 4G has a larger volume of 109.1376 cm³, reflecting its larger overall dimensions.

Display:
Display type LCD, IPS LCD, IPS
screen size 6.67" 6.9"
pixel density 264 ppi 254 ppi
resolution 720 x 1604 px 720 x 1600 px
refresh rate 90Hz 120Hz
has branded damage-resistant glass
Gorilla Glass version Gorilla Glass 7i Gorilla Glass 3
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
Has a secondary screen
has a touch screen

Both the Oppo A5i Pro and Xiaomi Redmi 15C 4G feature LCD IPS displays. The Oppo model offers a 6.67″ screen, while the Redmi 15C 4G comes with a slightly larger 6.9″ display. In terms of pixel density, the Oppo has a higher value at 264 ppi compared to the Redmi’s 254 ppi, indicating a slightly sharper image on the Oppo’s screen.

The resolution of both displays is similar, with the Oppo A5i Pro featuring 720 x 1604 px and the Xiaomi Redmi 15C 4G having 720 x 1600 px. This small difference in resolution likely results in negligible visual impact in everyday use.

For refresh rates, the Oppo A5i Pro supports 90Hz, while the Redmi 15C 4G offers a higher 120Hz refresh rate. Both phones feature branded damage-resistant glass, with the Oppo using Gorilla Glass 7i and the Redmi using Gorilla Glass 3. Neither device supports HDR10, HDR10+, Dolby Vision, or Always-On Display, and neither has a secondary screen. Both phones include a touch screen, ensuring a similar user experience in that regard.

Performance:
internal storage 128GB 256GB
RAM 8GB 4GB
Chipset (SoC) name Qualcomm Snapdragon 6 Gen 1 MediaTek Helio G81 Ultra
GPU name Adreno 710 Mali G52 MP2
CPU speed 4 x 2.2 & 4 x 1.8 GHz 2 x 2 & 6 x 1.8 GHz
Geekbench 6 result (multi) 2748 1391
Geekbench 6 result (single) 943 420
Has integrated LTE
RAM speed 2750 MHz 1800 MHz
semiconductor size 4 nm 12 nm
Supports 64-bit
DirectX version DirectX 12 DirectX 12
Has integrated graphics
OpenGL ES version 3.2 3.2
Uses big.LITTLE technology
CPU threads 8 threads 8 threads
Has TrustZone
maximum memory bandwidth 22 GB/s 13.41 GB/s
OpenCL version 2 2
memory channels 2 2
L2 cache 2 MB 0.3 MB
eMMC version 5.1 5.1
maximum memory amount 12GB 8GB
Thermal Design Power (TDP) 7W 5W
DDR memory version 5 4
shading units 128 32
L3 cache 2 MB 1 MB

The Oppo A5i Pro comes with 128GB of internal storage and 8GB of RAM, while the Xiaomi Redmi 15C 4G offers 256GB of storage but only 4GB of RAM. This difference in storage capacity may be beneficial for users needing more space, though the Oppo’s higher RAM could potentially offer smoother performance in multitasking scenarios.

When it comes to processing power, the Oppo A5i Pro is equipped with the Qualcomm Snapdragon 6 Gen 1 chipset, paired with an Adreno 710 GPU. The Redmi 15C 4G, on the other hand, uses the MediaTek Helio G81 Ultra chipset with a Mali G52 MP2 GPU. The Oppo’s processor features a higher CPU speed with 4 cores running at 2.2 GHz and 4 cores at 1.8 GHz, compared to the 2 cores at 2.0 GHz and 6 cores at 1.8 GHz in the Redmi.

The Oppo A5i Pro significantly outperforms the Redmi 15C 4G in Geekbench 6 results, with scores of 2748 (multi) and 943 (single), compared to the Redmi’s 1391 (multi) and 420 (single). The Oppo also boasts faster RAM speed at 2750 MHz, compared to 1800 MHz in the Xiaomi model. Other specs, such as support for 64-bit architecture, DirectX 12, integrated graphics, and OpenGL ES 3.2, are shared between the two devices. However, the Oppo’s chipset has a smaller 4 nm semiconductor size, providing potential energy efficiency advantages over the Redmi’s 12 nm size. The Oppo also supports a maximum of 12GB of RAM, while the Redmi is limited to 8GB. Additionally, the Oppo has a higher maximum memory bandwidth of 22 GB/s, compared to the Redmi’s 13.41 GB/s.

Cameras:
megapixels (main camera) 50 & 2 MP 50 MP
wide aperture (main camera) 2.4 & 1.8f 1.8f
Has a dual-lens (or multi-lens) main camera
megapixels (front camera) 5MP 8MP
has built-in optical image stabilization
video recording (main camera) 1080 x 30 fps 1080 x 30 fps
Has a dual-tone LED flash
number of flash LEDs 1 1
has a BSI sensor
has a CMOS sensor
has continuous autofocus when recording movies
Has phase-detection autofocus for photos
supports slow-motion video recording
has a built-in HDR mode
has manual exposure
has a flash
optical zoom 0x 0x
has manual ISO
has a serial shot mode
has manual focus
has a front camera
Has laser autofocus
Shoots 360° panorama
has manual white balance
shoots raw
has touch autofocus
has manual shutter speed
can create panoramas in-camera
wide aperture (front camera) 2.2f 2f
Has timelapse function
Has a front-facing LED flash
has a dual-lens (or multi-lens) front camera
supports HDR10 recording
supports Dolby Vision recording
has a front-facing camera under the display
Has a RGB LED flash
has 3D photo/video recording capabilities

The Oppo A5i Pro and Xiaomi Redmi 15C 4G both feature a 50 MP main camera, but the Oppo A5i Pro pairs it with an additional 2 MP camera, giving it a dual-lens setup. In contrast, the Redmi 15C 4G has a single-lens main camera. Both cameras have similar video recording capabilities, offering 1080p video at 30 fps. The Oppo model has a slightly wider aperture on its main camera at 2.4f and 1.8f for the two lenses, while the Redmi 15C 4G's main camera has a 1.8f aperture.

For front cameras, the Oppo A5i Pro offers a 5 MP sensor with a 2.2f wide aperture, while the Xiaomi Redmi 15C 4G has an 8 MP front camera with a 2f aperture. The Oppo also supports more advanced features like built-in optical image stabilization, which the Redmi lacks, though both devices have continuous autofocus when recording movies and phase-detection autofocus for photos.

Both phones come with a flash, but neither has a dual-tone LED flash. Both have manual exposure, manual ISO, serial shot mode, and manual focus, with the ability to create panoramas in-camera. Neither supports shooting in RAW format, HDR10 recording, or Dolby Vision recording. The Oppo A5i Pro includes a front-facing camera under the display, while the Xiaomi does not, and neither supports 360° panorama or 3D photo/video recording capabilities.

Operating system:
Android version Android 16 Android 15
has clipboard warnings
has location privacy options
has camera/microphone privacy options
has Mail Privacy Protection
has theme customization
can block app tracking
blocks cross-site tracking
has on-device machine learning
has notification permissions
has media picker
Can play games while they download
has dark mode
has Wi-Fi password sharing
has battery health check
has an extra dim mode
has focus modes
has dynamic theming
can offload apps
Has customizable notifications
has Live Text
has full-page screenshots
supports split screen
gets direct OS updates
has PiP
Can be used as a PC
Has sharing intents
has a child lock
Supports widgets
Is free and open source
Has offline voice recognition
has voice commands
Tracks the current position of a mobile device
is a multi-user system
has Quick Start

The Oppo A5i Pro and Xiaomi Redmi 15C 4G both run on Android-based operating systems, with the Oppo device using Android 16 and the Xiaomi device using Android 15. Both phones have similar features such as clipboard warnings, location privacy options, camera/microphone privacy options, theme customization, app tracking block, and on-device machine learning.

Both devices also support dark mode, Wi-Fi password sharing (although it is not available on either model), battery health check, extra dim mode, and dynamic theming. Additionally, they share features like customizable notifications, Live Text, full-page screenshots, split-screen support, and Picture-in-Picture (PiP). Both models allow offloading apps and have widgets, child lock, offline voice recognition, voice commands, and track the current position of the device. They also support multi-user systems and are free and open source.

There are a few features that only the Oppo A5i Pro has, such as the ability to use PiP and create dynamic theming. Both models do not get direct OS updates or have Quick Start functionality. Overall, while both share many similar features, the Oppo A5i Pro has slightly more advanced features due to its newer Android version.

Battery:
battery power 6000 mAh 6000 mAh
has wireless charging
Supports fast charging
charging speed 45W 33W
has reverse wireless charging
has a removable battery
has a battery level indicator
has a rechargeable battery

Both the Oppo A5i Pro and Xiaomi Redmi 15C 4G are equipped with a 6000 mAh battery, providing a large power capacity for extended usage. Neither device supports wireless charging or reverse wireless charging, and both have rechargeable, non-removable batteries. They also come with a battery level indicator to keep track of battery status.

The key difference between the two models lies in their charging speeds. The Oppo A5i Pro supports fast charging at 45W, while the Xiaomi Redmi 15C 4G supports fast charging at 33W. Both devices offer fast charging capabilities, but the Oppo A5i Pro has a higher charging speed, potentially allowing for faster recharges.

Overall, while the two models are similar in battery power and key features, the Oppo A5i Pro offers a faster charging speed than the Redmi 15C 4G.

Audio:
has a socket for a 3.5 mm audio jack
has stereo speakers
has aptX
has LDAC
has aptX HD
has aptX Adaptive
has aptX Lossless
Has a radio

Both the Oppo A5i Pro and Xiaomi Redmi 15C 4G feature a 3.5 mm audio jack, making them compatible with wired headphones and audio devices. Neither of the devices comes with stereo speakers, which means audio output is limited to mono sound. However, the Oppo A5i Pro supports aptX for better audio quality over Bluetooth, while the Xiaomi Redmi 15C 4G lacks support for aptX or any other high-definition Bluetooth audio codecs such as LDAC, aptX HD, aptX Adaptive, or aptX Lossless.

Additionally, the Xiaomi Redmi 15C 4G has a radio, which is absent on the Oppo A5i Pro. This feature might be important for users who enjoy listening to FM radio directly on their phone.

In summary, the Oppo A5i Pro offers Bluetooth audio improvements with aptX, while the Xiaomi model offers radio functionality but lacks advanced Bluetooth audio support.

Connectivity & Features:
release date June 2025 August 2025
has 5G support
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
SIM cards 2 SIM 2 SIM
Bluetooth version 5 5.4
has an external memory slot
Has USB Type-C
USB version 2 2
has NFC
download speed 2900 MBits/s 300 MBits/s
upload speed 900 MBits/s 100 MBits/s
Has a fingerprint scanner
has emergency SOS via satellite
has crash detection
is DLNA-certified
has a gyroscope
supports ANT+
Has a heart rate monitor
has GPS
has a compass
supports Wi-Fi
Has an infrared sensor
has an accelerometer
has a cellular module
Has a barometer
has an HDMI output
Uses 3D facial recognition
Has an iris scanner
Stylus included
supports Galileo
Has motion tracking
Has optical tracking
Has a built-in projector

Both the Oppo A5i Pro and Xiaomi Redmi 15C 4G support 2 SIM cards and offer Wi-Fi versions Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac). However, the Xiaomi model features Bluetooth 5.4, while the Oppo A5i Pro uses Bluetooth 5. This slight difference may offer some minor connectivity improvements in the Redmi. The Oppo A5i Pro has a faster download speed of 2900 MBits/s compared to the Xiaomi's 300 MBits/s, while the Xiaomi model has a higher upload speed of 100 MBits/s compared to the Oppo’s 900 MBits/s.

Both devices come with a USB Type-C port and use USB version 2, and both have NFC, fingerprint scanners, GPS, and a compass. The Oppo A5i Pro has a gyroscope, but the Xiaomi model lacks it. Additionally, both phones support Galileo and have accelerometers. The Xiaomi Redmi 15C 4G, however, has an external memory slot, which the Oppo model does not provide.

Neither phone includes features such as 5G support, emergency SOS via satellite, crash detection, infrared sensors, or barometers. They also lack HDMI output, 3D facial recognition, iris scanners, or built-in projectors. In summary, both devices offer similar core connectivity features, with minor differences like the Oppo’s faster download speed and the Xiaomi’s external memory slot support.

Miscellaneous:
has a video light
Has sapphire glass display
Has a curved display
Has an e-paper display

Both the Oppo A5i Pro and Xiaomi Redmi 15C 4G are equipped with a video light, which can help improve lighting for photos and videos in low-light conditions. Neither device features sapphire glass displays, curved displays, or e-paper displays. These attributes are consistent across both products, with no differences in these specific areas.

In summary, both phones share the same set of features in this category, offering a video light but lacking advanced display technologies like sapphire glass, curved displays, or e-paper displays.

Comparison Summary

This is a specification comparison between Oppo A5i Pro and Xiaomi Redmi 15C 4G. Both models share features such as water resistance, 8 mm thickness, and a 3.5 mm audio jack. However, the Oppo A5i Pro has a 6.67″ display with a 90Hz refresh rate, while the Xiaomi Redmi 15C 4G has a larger 6.9″ display with a 120Hz refresh rate. The Oppo A5i Pro is powered by a Qualcomm Snapdragon 6 Gen 1 chipset with 8GB of RAM, while the Xiaomi Redmi 15C 4G uses a MediaTek Helio G81 Ultra chipset with 4GB of RAM. Additionally, the Oppo A5i Pro features a 50 & 2 MP dual-lens main camera with optical image stabilization, while the Xiaomi Redmi 15C 4G has a 50 MP single-lens main camera.