Xiaomi Redmi 9A vs Oppo Realme C20

Here we compared two budget smartphones: the 6.53-inch Xiaomi Redmi 9A (with MediaTek Helio G25) that was released on June 30, 2020, against the Oppo Realme C20, which is powered by MediaTek Helio G35 and came out 7 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi 9A
  • More recent OS version: Android 11 versus 10
Reasons to consider the Oppo Realme C20
  • Compatible with Wi-Fi 5 wireless networks
  • Newer Bluetooth version (v5.1)
  • 31% better performance in AnTuTu Benchmark (122K versus 93K)
  • Reverse charging feature
  • 33% faster in single-core GeekBench 5 test: 179 and 135 points
  • The phone is 7-months newer

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type IPS LCD IPS LCD
Size 6.53 inches 6.5 inches
Resolution 720 x 1600 pixels 720 x 1600 pixels
Aspect ratio 20:9 20:9
PPI 269 ppi 270 ppi
Refresh rate 60 Hz 60 Hz
Max rated brightness 400 nits 450 nits
HDR support No No
Screen protection Tempered glass Corning Gorilla Glass 3
Screen-to-body ratio 81.1% 80.8%
Display tests
RGB color space 92.9% -
Response time 40 ms -
Contrast 1318:1 -
Peak brightness test (auto)
432 nits
Sources: NotebookCheck [3]

Design and build

Height 164.9 mm (6.49 inches) 165.2 mm (6.5 inches)
Width 77 mm (3.03 inches) 76.4 mm (3.01 inches)
Thickness 9 mm (0.35 inches) 8.9 mm (0.35 inches)
Weight 194 gramm (6.84 oz) 190 gramm (6.7 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Gray, Blue, Green Gray, Blue
Fingerprint scanner No No
Screen-to-body ratio
81.1%
80.8%

Performance

Tests of Xiaomi Redmi 9A and Oppo Realme C20 in the benchmarks
SoC
Chipset MediaTek Helio G25 MediaTek Helio G35
Max. clock 2000 MHz 2300 MHz
CPU cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4 cores at 1.5 GHz: Cortex-A53
- 4 cores at 2 GHz: Cortex-A53
- 4 cores at 1.8 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A53
Lithography process 12 nanometers 12 nanometers
Graphics IMG PowerVR GE8320 IMG PowerVR GE8320
GPU clock 650 MHz 680 MHz
FLOPS ~41.8 GFLOPS ~54.4 GFLOPS
Memory
RAM size 2 GB 2 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage size 32 GB 32 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 256 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
135
Realme C20 +33%
179
Geekbench 5 (Multi-Core)
466
Realme C20 +112%
990
AnTuTu Benchmark 9
93412
Realme C20 +31%
122231
CPU 36605 40291
GPU 12376 16984
Memory 24580 27120
UX 20429 37983
Total score 93412 122231

Software

Operating system Android 10 (Can be upgraded to Android 11) Android 10
ROM MIUI 12.5 Enhanced Realme UI 1.0
OS size 11 GB -

Battery

Specifications
Capacity 5000 mAh 5000 mAh
Charge power 10 W 10 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No Yes
Fast charging No No (50% in 70 min)
Full charging time 2:55 hr 3:00 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 13 megapixels 8 megapixels
Image resolution 4128 x 3096 3264 x 2448
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No No
1080p video recording Up to 30FPS Up to 30FPS
Slow motion No No
Lenses 1 (13 MP) 1 (8 MP)
Wide (main) lens - 13 MP
- Aperture: f/2.2
- Focal length: 28 mm
- Pixel size: 1 micron
- Phase autofocus
- 8 MP
- Aperture: f/2.0
- Focal length: 26 mm
- Pixel size: 1.12 micron
- Sensor: 1/4" (CMOS)
- Phase autofocus
Selfie camera
Megapixels 5 megapixels 5 megapixels
Image resolution 2560 x 1960 2560 x 1960
Aperture f/2.2 f/2.2
Focal length - 27 mm
Pixel size 1.12 microns 1.12 microns
Sensor type CMOS CMOS
Sensor size - 1/5"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 4 (802.11 a/b/g/n) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.1
Bluetooth features LE, HID, A2DP LE, HID, A2DP
USB type Micro USB Micro USB
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou
NFC* No No
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 4 7
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos No No
Speakers test
Max. loudness
76.5 dB

Other

Category Budget Budget
Announced June 2020 January 2021
Release date August 2020 January 2021
SAR (head) 0.398 W/kg -
SAR (body) 0.901 W/kg -
Sensors - Proximity sensor
- Accelerometer
- Ambient light sensor
- Proximity sensor
- Accelerometer
- Ambient light sensor
- Compass
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance and connectivity are more important to you, then choose the Oppo Realme C20. But if the software and sound are more of a priority – go for the Xiaomi Redmi 9A.

Cast your vote

So, which phone would you choose?
2 (33.3%)
4 (66.7%)
Total votes: 6

User opinions

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