Samsung Galaxy A03 vs Oppo Realme C21Y

Here we compared two budget smartphones: the 6.5-inch Samsung Galaxy A03 (with Unisoc T606) that was released on November 26, 2021, against the Oppo Realme C21Y, which is powered by Unisoc T610 and came out 6 months before. 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 Samsung Galaxy A03
  • Compatible with Wi-Fi 5 wireless networks
  • Supports 15W fast charging
  • Supports Dolby Atmos sound technology
  • The phone is 6-months newer
Reasons to consider the Oppo Realme C21Y
  • Fingerprint scanner
  • Reverse charging feature
  • 15% faster in single-core GeekBench 5 test: 348 and 303 points

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

Display

Type PLS TFT IPS LCD
Size 6.5 inches 6.5 inches
Resolution 720 x 1600 pixels 720 x 1600 pixels
Aspect ratio 20:9 20:9
PPI 270 ppi 270 ppi
Refresh rate 60 Hz 60 Hz
HDR support No No
Screen protection Tempered glass Tempered glass
Screen-to-body ratio 81.8% 81.6%
Display tests
RGB color space 96% -
PWM Not detected -
Response time 45 ms -
Contrast 1641:1 -
Max. Brightness
416 nits
399 nits
Sources: NotebookCheck [3]

Design and build

Height 164.2 mm (6.46 inches) 164.5 mm (6.48 inches)
Width 75.9 mm (2.99 inches) 76 mm (2.99 inches)
Thickness 9.1 mm (0.36 inches) 9.1 mm (0.36 inches)
Weight 196 gramm (6.91 oz) 200 gramm (7.05 oz)
Waterproof No No
Rear material Plastic Plastic
Frame material Plastic Plastic
Colors Black, Blue, Red Black, Blue
Fingerprint scanner No Yes, rear
Screen-to-body ratio
81.8%
81.6%

Performance

Tests of Samsung Galaxy A03 and Oppo Realme C21Y in the benchmarks
SoC
Chipset Unisoc T606 Unisoc T610
Max. clock 1600 MHz 1800 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.6 GHz: Cortex-A55
- 2 cores at 1.6 GHz: Cortex-A75
- 6 cores at 1.82 GHz: Cortex-A55
- 2 cores at 1.82 GHz: Cortex-A75
L3 cache 1 MB 1 MB
Lithography process 12 nanometers 12 nanometers
Graphics Mali-G57 MC2 ARM Mali G52 MP2
GPU clock 850 MHz 614 MHz
FLOPS - ~71.2 GFLOPS
Memory
RAM size 3, 4 GB 3, 4 GB
Memory type LPDDR4X LPDDR4X
Memory clock - 1866 MHz
Channels 2 2
Storage
Storage size 32, 64, 128 GB 32, 64 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 1024 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
348
Geekbench 5 (Multi-Core)
1031
1304
AnTuTu Benchmark 9
179410
192652
CPU 59385 66485
GPU 26274 32103
Memory 34858 37779
UX 59038 57506
Total score 179410 192652
3DMark Wild Life Performance
Stability 97% -
Graphics test 2 FPS -
Graphics score 403 -
PCMark 3.0 score 6669 -
Sources: 3DMark [3]

Software

Operating system Android 11 Android 11
ROM One UI Core 3.1 Realme UI 2.0
OS size 13.5 GB -

Battery

Specifications
Capacity 5000 mAh 5000 mAh
Charge power 15 W 10 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No Yes
Fast charging Yes (20% in 40 min) No
Full charging time 3:35 hr 3:00 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 13 megapixels
Image resolution 8000 x 6000 4128 x 3096
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 2 (48 MP + 2 MP) 3 (13 MP + 2 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Phase autofocus
- 13 MP
- Aperture: f/2.2
- Focal length: 26 mm
- Sensor: 1/3.06" (CMOS)
- Phase autofocus
Macro lens - - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
Depth lens - 2 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode - Bokeh mode
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
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 5 (802.11 b/g/n/ac) Wi-Fi 4 (802.11 a/b/g/n)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, A2DP LE, HID, A2DP
USB type Micro USB Micro USB
USB version 2 2
USB features - Charging
- USB-Storage mode
- Charging
- USB-Storage mode
GPS GPS, GLONASS, Beidou, Galileo, QZSS 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 - No
Dolby Atmos Yes No
Speakers test
Max. loudness
81.9 dB

Other

Category Budget Budget
Announced November 2021 June 2021
Release date January 2022 July 2021
Sensors - Proximity sensor
- Accelerometer
- Ambient light sensor
- Proximity sensor
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the display, software, battery life, connectivity, and sound are more important to you, then choose the Samsung Galaxy A03. But if the performance is more of a priority – go for the Oppo Realme C21Y.

Cast your vote

So, which phone would you choose?
22 (45.8%)
26 (54.2%)
Total votes: 48

User opinions

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