Oppo A20
Xiaomi Redmi 15C 4G

Oppo A20 Xiaomi Redmi 15C 4G

Common Features

  • Both devices have a water-resistant design.
  • Neither product has a rugged build.
  • Both phones have a non-foldable design.
  • Both devices feature an LCD, IPS display type.
  • Neither product supports HDR10+.
  • Both products have a touch screen.
  • Both devices support 64-bit architecture.
  • Both devices have 4GB of RAM.
  • Both products have a battery level indicator.
  • Both phones support fast charging.
  • Both devices have a rechargeable battery.
  • Both products have a socket for a 3.5 mm audio jack.
  • Both devices support two SIM cards.
  • Both devices have an external memory slot.
  • Both devices feature a USB Type-C port.
  • Both devices have NFC support.
  • Both products have a fingerprint scanner.
  • Both devices have a video light.
  • Both phones have a CMOS sensor for the main camera.
  • Both devices feature phase-detection autofocus for photos.

Main Differences

  • Oppo A20 weighs 186 g while Xiaomi Redmi 15C 4G weighs 205 g.
  • Oppo A20 has a thickness of 7.68 mm, while Xiaomi Redmi 15C 4G has a thickness of 8 mm.
  • Oppo A20 is 76.08 mm wide, while Xiaomi Redmi 15C 4G is 79.5 mm wide.
  • Oppo A20 has a height of 165.77 mm, while Xiaomi Redmi 15C 4G has a height of 171.6 mm.
  • Oppo A20 has an IP54 rating, while Xiaomi Redmi 15C 4G has an IP64 rating.
  • Oppo A20 has a 6.67″ screen size, while Xiaomi Redmi 15C 4G has a 6.9″ screen size.
  • Oppo A20 has a pixel density of 264 ppi, while Xiaomi Redmi 15C 4G has a pixel density of 254 ppi.
  • Oppo A20 has a resolution of 720 x 1604 px, while Xiaomi Redmi 15C 4G has a resolution of 720 x 1600 px.
  • Oppo A20 has a 90Hz refresh rate, while Xiaomi Redmi 15C 4G has a 120Hz refresh rate.
  • Oppo A20 does not have branded damage-resistant glass, while Xiaomi Redmi 15C 4G does.
  • Oppo A20 supports HDR10, while Xiaomi Redmi 15C 4G does not.
  • Oppo A20 has 128GB of internal storage, while Xiaomi Redmi 15C 4G has 256GB of internal storage.
  • Oppo A20 uses the Qualcomm Snapdragon 6 Gen 1 chipset, while Xiaomi Redmi 15C 4G uses the MediaTek Helio G81 Ultra chipset.
  • Oppo A20 has the Adreno 710 GPU, while Xiaomi Redmi 15C 4G has the Mali G52 MP2 GPU.
  • Oppo A20 has CPU speeds of 4 x 2.2 & 4 x 1.8 GHz, while Xiaomi Redmi 15C 4G has CPU speeds of 2 x 2 & 6 x 1.8 GHz.
  • Oppo A20 scores 2748 in Geekbench 6 multi-core and 943 in single-core, while Xiaomi Redmi 15C 4G scores 1391 in multi-core and 420 in single-core.
  • Oppo A20 has RAM speed of 2750 MHz, while Xiaomi Redmi 15C 4G has RAM speed of 1800 MHz.
  • Oppo A20 uses a 4 nm semiconductor size, while Xiaomi Redmi 15C 4G uses a 12 nm semiconductor size.
  • Oppo A20 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 A20 has 2 MB of L2 cache, while Xiaomi Redmi 15C 4G has 0.3 MB of L2 cache.
  • Oppo A20 supports a maximum memory amount of 12GB, while Xiaomi Redmi 15C 4G supports a maximum memory amount of 8GB.
  • Oppo A20 has a Thermal Design Power (TDP) of 7W, while Xiaomi Redmi 15C 4G has a TDP of 5W.
  • Oppo A20 has an 8 & 0.3 MP main camera, while Xiaomi Redmi 15C 4G has a 50 MP main camera.
  • Oppo A20 has a dual-lens main camera, while Xiaomi Redmi 15C 4G has a single-lens main camera.
  • Oppo A20 has a 5 MP front camera, while Xiaomi Redmi 15C 4G has an 8 MP front camera.
  • Oppo A20 features built-in optical image stabilization, while Xiaomi Redmi 15C 4G does not.
  • Oppo A20 has 4 flash LEDs, while Xiaomi Redmi 15C 4G has 1 flash LED.
  • Oppo A20 has a BSI sensor, while Xiaomi Redmi 15C 4G does not.
  • Oppo A20 has a 2.2f wide aperture for the front camera, while Xiaomi Redmi 15C 4G has a 2f wide aperture for the front camera.
  • Oppo A20 runs Android 14, while Xiaomi Redmi 15C 4G runs Android 15.
  • Oppo A20 cannot offload apps, while Xiaomi Redmi 15C 4G can offload apps.
  • Oppo A20 has a 5100 mAh battery, while Xiaomi Redmi 15C 4G has a 6000 mAh battery.
  • Oppo A20 supports 45W charging speed, while Xiaomi Redmi 15C 4G supports 33W charging speed.
  • Oppo A20 has stereo speakers, while Xiaomi Redmi 15C 4G does not.
  • Oppo A20 has aptX, aptX HD, and LDAC support, while Xiaomi Redmi 15C 4G does not.
  • Xiaomi Redmi 15C 4G has a radio, while Oppo A20 does not.
  • Oppo A20 supports Wi-Fi 4, Wi-Fi 5, and Wi-Fi 6, while Xiaomi Redmi 15C 4G supports Wi-Fi 4 and Wi-Fi 5.
  • Oppo A20 supports Bluetooth 5, while Xiaomi Redmi 15C 4G supports Bluetooth 5.4.
  • Oppo A20 has download speeds of 2900 MBits/s and upload speeds of 900 MBits/s, while Xiaomi Redmi 15C 4G has download speeds of 300 MBits/s and upload speeds of 100 MBits/s.
  • Oppo A20 has a gyroscope, while Xiaomi Redmi 15C 4G does not.
Specs Comparison
Oppo A20

Oppo A20

Xiaomi Redmi 15C 4G

Xiaomi Redmi 15C 4G

Design:
water resistance Water resistant Water resistant
weight 186 g 205 g
thickness 7.68 mm 8 mm
width 76.08 mm 79.5 mm
height 165.77 mm 171.6 mm
volume 96.858482688 cm³ 109.1376 cm³
Ingress Protection (IP) rating IP54 IP64
has a rugged build
can be folded

The Oppo A20 and Xiaomi Redmi 15C 4G both offer water resistance, but they differ in their Ingress Protection (IP) ratings. The Oppo A20 has an IP54 rating, meaning it is resistant to dust and can handle water splashes. The Xiaomi Redmi 15C 4G, on the other hand, has a higher IP64 rating, which indicates it is also resistant to dust and can withstand water splashes with greater durability.

In terms of physical dimensions, the Oppo A20 is lighter and thinner. It weighs 186 g, with a thickness of 7.68 mm, and has a volume of 96.86 cm³. In comparison, the Xiaomi Redmi 15C 4G is heavier at 205 g, slightly thicker at 8 mm, and has a larger volume of 109.14 cm³. The Redmi 15C is also slightly wider and taller, measuring 79.5 mm in width and 171.6 mm in height, compared to the Oppo A20’s 76.08 mm width and 165.77 mm height.

Both devices have non-foldable designs and lack a rugged build, so their durability in extreme conditions would be comparable based on their standard build quality.

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
supports HDR10
supports HDR10+
Always-On Display
supports Dolby Vision
Has a secondary screen
has a touch screen

The Oppo A20 and Xiaomi Redmi 15C 4G both feature LCD IPS displays, but they differ in several aspects. The Oppo A20 has a 6.67-inch screen, while the Redmi 15C is slightly larger at 6.9 inches. The Oppo A20 offers a pixel density of 264 ppi, which is slightly higher than the Redmi 15C’s 254 ppi. Both devices have a 720 x 1600+ resolution, with the Oppo A20 at 720 x 1604 px and the Redmi 15C at 720 x 1600 px, making their resolutions very similar.

One significant difference is the refresh rate: the Oppo A20 supports a 90Hz refresh rate, while the Redmi 15C supports a higher 120Hz refresh rate. The Oppo A20 also supports HDR10, while the Redmi 15C does not, though neither device supports HDR10+ or Dolby Vision.

Additionally, the Oppo A20 lacks branded damage-resistant glass, while the Xiaomi Redmi 15C features this protection. Both devices do not support an Always-On Display or have a secondary screen, but both are equipped with touch screens.

Performance:
internal storage 128GB 256GB
RAM 4GB 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 A20 and Xiaomi Redmi 15C 4G differ significantly in performance specifications. The Oppo A20 features the Qualcomm Snapdragon 6 Gen 1 chipset, paired with an Adreno 710 GPU, while the Redmi 15C is powered by the MediaTek Helio G81 Ultra chipset and a Mali G52 MP2 GPU. The Oppo A20 also has a higher CPU speed, with 4 cores at 2.2 GHz and 4 cores at 1.8 GHz, compared to the Redmi 15C’s 2 cores at 2 GHz and 6 cores at 1.8 GHz.

In terms of memory, both devices come with 4GB of RAM, but the Oppo A20 offers faster RAM speed at 2750 MHz, compared to the Redmi 15C’s 1800 MHz. The Oppo A20 also has a more advanced 4nm semiconductor size, whereas the Redmi 15C uses a 12nm semiconductor. The Oppo A20 supports up to 12GB of maximum memory, while the Redmi 15C supports a maximum of 8GB, although the Oppo A20 has less internal storage at 128GB compared to the 256GB storage in the Redmi 15C.

Geekbench 6 results show a clear performance gap, with the Oppo A20 scoring 2748 in multi-core and 943 in single-core, while the Redmi 15C lags behind with scores of 1391 and 420, respectively. Both devices support 64-bit processing and DirectX 12, but the Oppo A20 has a higher maximum memory bandwidth (22 GB/s) compared to the Redmi 15C’s 13.41 GB/s. The Oppo A20 also has larger L2 and L3 caches (2MB each), while the Redmi 15C has smaller caches (0.3MB and 1MB). Both devices support big.LITTLE technology and have integrated graphics.

Cameras:
megapixels (main camera) 8 & 0.3 MP 50 MP
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 4 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 A20 and Xiaomi Redmi 15C 4G differ significantly in their camera setups. The Oppo A20 has a dual-lens main camera with 8 MP and 0.3 MP sensors, while the Redmi 15C only has a single 50 MP main camera. The Oppo A20’s front camera is 5 MP, while the Redmi 15C has an 8 MP front camera. Both devices offer features like phase-detection autofocus for photos, continuous autofocus for videos, and the ability to record 1080p video at 30 fps.

In terms of additional camera features, the Oppo A20 offers more flexibility with a wider range of manual controls, including manual exposure, ISO, white balance, and focus. It also supports slow-motion video, HDR, and timelapse recording, whereas the Redmi 15C lacks optical image stabilization and has a single LED flash, compared to the Oppo A20's four LEDs. Both devices have a flash, but neither offers a front-facing LED flash.

Additionally, both phones lack advanced features like HDR10 or Dolby Vision recording, 360° panorama shooting, or 3D photo/video capabilities. The Oppo A20 can create panoramas in-camera, while the Redmi 15C has the same capability, but with no dual-lens front camera for added depth effects.

Operating system:
Android version Android 14 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 A20 and Xiaomi Redmi 15C 4G both run on Android, but with different versions. The Oppo A20 uses Android 14, while the Redmi 15C runs on Android 15. Both devices share several privacy and security features, including clipboard warnings, location privacy options, and camera/microphone privacy options. They also support theme customization, blocking app tracking, and have on-device machine learning capabilities.

Both phones offer features like dark mode, battery health check, extra dim mode, and customizable notifications. They also support full-page screenshots, split-screen functionality, and PiP (picture-in-picture) mode. Additionally, both phones have offline voice recognition, voice commands, and the ability to track the current position of the device. Neither device offers Quick Start or gets direct OS updates, and both are free and open source.

There are some differences between the two, with the Redmi 15C having the ability to offload apps, while the Oppo A20 does not. The Oppo A20 also supports dynamic theming, whereas this feature was not listed for the Redmi 15C. Both phones support widgets, sharing intents, and have a child lock, but neither can be used as a PC, and both have no value for Mail Privacy Protection or cross-site tracking blocking.

Battery:
battery power 5100 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

The Oppo A20 and Xiaomi Redmi 15C 4G both feature non-removable rechargeable batteries, but they differ in battery power and charging capabilities. The Oppo A20 has a 5100 mAh battery, while the Redmi 15C comes with a larger 6000 mAh battery. Both devices support fast charging, but the Oppo A20 offers faster charging at 45W, compared to the 33W fast charging supported by the Redmi 15C.

Neither device supports wireless charging or reverse wireless charging, and both include a battery level indicator to monitor remaining charge. Both phones also feature rechargeable batteries, ensuring they can be used for extended periods before needing a charge.

Despite the larger battery in the Redmi 15C, the Oppo A20’s faster 45W charging speed may appeal to users looking for quicker recharge times.

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 A20 and Xiaomi Redmi 15C 4G offer a 3.5 mm audio jack, but they differ in audio features beyond that. The Oppo A20 comes with stereo speakers, aptX, and LDAC support, making it a better choice for high-quality wireless audio streaming. However, it does not support aptX HD, aptX Adaptive, or aptX Lossless. On the other hand, the Redmi 15C does not feature stereo speakers, but it has a radio, which is not available on the Oppo A20.

Both devices lack support for the advanced aptX variants like aptX HD, aptX Adaptive, and aptX Lossless, and neither offers a radio feature (except for the Redmi 15C). While the Oppo A20 excels in wireless audio streaming capabilities with aptX and LDAC support, the Redmi 15C stands out with its radio functionality.

In terms of basic audio features, both devices provide the essential 3.5 mm audio jack, but the Oppo A20 offers a more premium audio experience with stereo speakers and higher-end Bluetooth audio support.

Connectivity & Features:
release date June 2025 August 2025
has 5G support
Wi-Fi version Wi-Fi 4 (802.11n), Wi-Fi 6 (802.11ax), 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

The Oppo A20 and Xiaomi Redmi 15C 4G share several connectivity features, but they differ in some aspects. Neither device supports 5G, but both offer dual SIM card slots. The Oppo A20 supports Wi-Fi versions 4 (802.11n), 5 (802.11ac), and 6 (802.11ax), while the Redmi 15C only supports Wi-Fi versions 4 (802.11n) and 5 (802.11ac). In terms of Bluetooth, the Oppo A20 has Bluetooth 5, whereas the Redmi 15C uses the slightly newer Bluetooth 5.4.

Both phones include NFC, USB Type-C, and an external memory slot. The Oppo A20 supports faster download speeds of 2900 MBits/s, while the Redmi 15C’s maximum download speed is slightly lower at 300 MBits/s. The upload speed for the Oppo A20 is 900 MBits/s, compared to the Redmi 15C’s 100 MBits/s, showing a clear difference in upload capabilities.

Other features are quite similar: both devices have a fingerprint scanner, GPS, a compass, an accelerometer, and support for Galileo. Neither has emergency SOS via satellite, crash detection, DLNA certification, infrared sensors, or a barometer. They also share the lack of a 3D facial recognition system, an iris scanner, stylus, motion tracking, optical tracking, or a built-in projector. However, the Oppo A20 offers a gyroscope, which the Redmi 15C lacks.

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

The Oppo A20 and Xiaomi Redmi 15C 4G are quite similar in terms of miscellaneous features. Both devices are equipped with a video light, which can be useful for low-light video recording. Neither device offers sapphire glass displays, curved displays, or e-paper displays. These features are not present on either phone.

In terms of display characteristics, both phones are identical, lacking advanced features such as sapphire glass, curved edges, or e-paper displays. The only differentiating factor here is the presence of a video light on both devices, which could be beneficial for video recording in darker environments.

Overall, these devices share the same set of features in this category, with no major differences between them.

Comparison Summary

This is a specification comparison between the Oppo A20 and Xiaomi Redmi 15C 4G. Both devices feature a water-resistant design, a touch screen, and support fast charging. The Oppo A20 has a 6.67″ screen size and a 90Hz refresh rate, while the Xiaomi Redmi 15C 4G offers a larger 6.9″ display with a 120Hz refresh rate. The Oppo A20 has a Qualcomm Snapdragon 6 Gen 1 chipset and 128GB of storage, whereas the Xiaomi Redmi 15C 4G uses the MediaTek Helio G81 Ultra and features 256GB of internal storage. Additionally, the Oppo A20 has stereo speakers and aptX support, while the Xiaomi Redmi 15C 4G lacks these features but includes a radio.