Xiaomi Redmi 9C vs Realme C21Y
Here we compared two budget smartphones: the 6.53-inch Xiaomi Redmi 9C (with MediaTek Helio G35) that was released on June 30, 2020, against the Realme C21Y, which is powered by Unisoc T610 and came out 12 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.
Key differences
Reasons to consider the Realme C21Y
- 59% better performance in AnTuTu Benchmark (250K versus 157K)
- The phone is 1-year newer
- Reverse charging feature
Review
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
Scores with a red asterisk (
*
) are approximate and may change in the future as we gather more data.
Value for money
Tests and specifications
Comparison table of technical specifications and testsDisplay
| 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 |
| Adaptive refresh rate | No | No |
| Max rated brightness | 400 nits | 400 nits |
| HDR support | No | No |
| Screen protection | Tempered glass | Tempered glass |
| Screen-to-body ratio | 81.1% | 81.6% |
| RGB color space | 92.9% | - |
| PWM | 17120 Hz | - |
| Response time | 47 ms | - |
| Contrast | 881:1 | - |
Peak brightness test (auto)
Design and build
| Height | 164.9 mm (6.49 inches) | 164.5 mm (6.48 inches) |
| Width | 77 mm (3.03 inches) | 76 mm (2.99 inches) |
| Thickness | 9 mm (0.35 inches) | 9.1 mm (0.36 inches) |
| Weight | 196 g (6.91 oz) | 200 g (7.05 oz) |
| Waterproof | No | No |
| Rear material | Plastic | Plastic |
| Frame material | Plastic | Plastic |
| Colors | Gray, Blue, Green, Purple | Black, Blue |
| Fingerprint scanner | Yes, rear | Yes, rear |
Screen-to-body ratio
Performance
| Chipset | MediaTek Helio G35 | Unisoc T610 |
| Max clock | 2300 MHz | 1800 MHz |
| CPU cores | 8 (4 + 4) | 8 (2 + 6) |
| Architecture |
- 4 cores at 1.8 GHz: Cortex-A53
- 4 cores at 2.3 GHz: Cortex-A53 |
- 6 cores at 1.82 GHz: Cortex-A55
- 2 cores at 1.82 GHz: Cortex-A75 |
| Lithography process | 12 nanometers | 12 nanometers |
| Graphics | PowerVR GE8320 | Mali-G52 MP2 |
| GPU shading units | 32 | 48 |
| GPU clock | 680 MHz | 614 MHz |
| FLOPS | ~43.5 GFLOPS | ~58.9 GFLOPS |
Benchmarks
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
| CPU | 56191 | 85494 |
| GPU | 10892 | 40815 |
| Memory | 43135 | 58863 |
| UX | 45809 | 63605 |
| Total score | 157574 | 250602 |
Memory
| RAM size | 2, 3, 4 GB | 3, 4 GB |
| Memory type | LPDDR4X | LPDDR4X |
| Memory clock | - | 1866 MHz |
| Channels | 2 | 2 |
| 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 256 GB | Up to 256 GB |
Software
| Operating system | Android 10 (Can be upgraded to Android 11) | Android 11 |
| ROM | MIUI 12 | Realme UI 2.0 |
| OS size | 18 GB | - |
Battery
| Capacity | 5000 mAh | 5000 mAh |
| Max 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 |
| Full charging time | 2:59 hr | 3:00 hr |
Camera
| Matrix | 13 megapixels | 13 megapixels |
| Image resolution | 4128 x 3096 | 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 (13 MP + 2 MP) | 3 (13 MP + 2 MP + 2 MP) |
| Wide (main) lens |
- 13 MP
- Aperture: f/1.8 - Pixel size: 1.12 micron - Sensor: 1/3.1" (CMOS) - 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 |
- 2 MP
- Aperture: f/2.4 - Pixel size: 1.75 micron |
| Depth lens | - |
- 2 MP
- Aperture: f/2.4 |
| Camera features | - Bokeh mode | - Bokeh mode |
| 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 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, 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 |
| GPS | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou |
| NFC * | Yes | No |
| Infrared port | No | No |
| 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 | No |
| Dolby Atmos | No | No |
Speakers test
Max loudness
Other
| Category | Budget | Budget |
| Announced | June 2020 | June 2021 |
| Release date | September 2020 | July 2021 |
| SAR (head) | 0.355 W/kg | - |
| SAR (body) | 0.729 W/kg | - |
| Sensors |
- Proximity sensor
- Accelerometer - Ambient light sensor - Fingerprint |
- 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, performance, and gaming are more important to you, then choose the Realme C21Y . But if the software and sound are more of a priority – go for the Xiaomi Redmi 9C .