Realme C51 vs Tecno Spark 40C
44
out 100
VS
55
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Compared 2 smartphones : Realme C51 Manufactured in August, 2023, with display 6.74 with chipsetUnisoc Tiger T612, vs Tecno Spark 40C, Manufactured in August, 2025 with chipsetMediaTek Helio G81. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Realme C51
- Larger display: 6.74in
- Lighter design: 186g vs 190g
Reasons to choose Tecno Spark 40C
- Higher pixel density: 263ppi
- Higher refresh rate: 120Hz
- Higher battery capacity: 6000mAh vs 5000mAh
- Newer Bluetooth version: 5.3 vs 5
- Supports Dolby Atmos
- Infrared port
Versions
| Memory Options | - 3/64 GB - 4/64 GB - 4/128 GB - 6/256 GB |
- 4/128 GB - 8/128 GB - 8/256 GB |
Review
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
Adjust each parameter’s importance to find the best match for you.
Tests & specs
Specs & test comparisonDisplay
| Type | IPS LCD | IPS LCD |
| Size | 6.74 in | 6.67 in |
| Resolution | 720x1600 pixels | 720x1600 pixels |
| Aspect ratio | 20:9 | 20:9 |
| Pixel density | 260 ppi | 263 ppi |
| Refresh rate | 90 Hz | 120 Hz |
| Adaptive refresh rate | No | Yes (60-120 Hz) |
| Max brightness | 560 nits | n/a |
| HDR support | No | No |
| Touch Sampling Rate | 180 Hz | n/a |
| Screen-to-body ratio | 85.6 % | 84.2 % |
Design & Build
| Height | 167.2 mm (6.58 in) | 165.6 mm (6.52 in) |
| Width | 76.7 mm (3.02 in) | 77 mm (3.03 in) |
| Thickness | 7.99 mm (0.31 in) | 8.4 mm (0.33 in) |
| Weight | 186 g (6.56 oz) | 190 g (6.7 oz) |
| Water resistance | No | IP64 |
| Back panel | Plastic | Plastic |
| Frame | Plastic | Plastic |
| Colors | - Black - Green |
- White - Black - Gray - Blue |
| Fingerprint sensor | Yes In-Button | Yes, In-Button |
Screen-to-body ratio
Performance
| Chipset | Unisoc Tiger T612 | MediaTek Helio G81 |
| Max Frequency | 1800 MHz | 2000 MHz |
| CPU Cores | 8 (2 + 6) | 8 (2 + 6) |
| Architecture | - 6/1.8 (Cortex-A55) - 2/1.8 (Cortex-A75) |
- 6/1.7 (Cortex-A55) - 2/2 (Cortex-A75) |
| Process | TSMC | TSMC |
| Transistor Size | 12 nm | 12 nm |
| Neural Processor | n/a | Yes |
| Graphics | Mali-G57 MP1 | Mali-G52 MP2 |
| GPU Cores | 32 | 48 |
| GPU Frequency | 614 MHz | 820 MHz |
| FLOPS | 78.6 GFLOPS | 78.7 GFLOPS |
| Geekbench 6 (Single-Core) | 415 | 444 |
| Geekbench 6 (Multi-Core) | 1476 | 1372 |
| CPU | 85532 | 76856 |
| GPU | 23310 | 35386 |
| Memory | 66023 | 64168 |
| UX | 69972 | 69127 |
| NanoReview Score | 244837 | 245537 |
Memory
| RAM Size | 4 GB | 4 GB |
| Memory Type | LPDDR4X | LPDDR4X |
| Memory Frequency | 1866 MHz | 1800 MHz |
| Channels | 2 | 2 |
| Storage Capacity | - 64 GB - 128 GB | 128 GB |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Memory Card | MicroSD | MicroSD |
Software
| OS | Android 13 | Android 15 |
| UI Skin | Realme UI T | HIOS 15.1 |
Battery
| Volume | 5000 mAh | 6000 mAh |
| Max Charging Power | 33 W | 18 W |
| Battery Type | Li-Po | Li-Po |
| Removable | No | No |
| Wireless Charging | No | No |
| Reverse Charging | No | No |
| Fast Charging | Yes (50% in 28 min) | Yes |
| Full Charge Time | 1:12 h | n/a |
Main camera
| Matrix | 50 MP | 13 MP |
| Photo resolution | 8192x6144 pixels | n/a |
| Zoom | Digital | Digital |
| Flash | LED | Dual LED |
| Stabilization | Digital | Digital |
| 8K Recording | No | No |
| 4K Recording | No | No |
| 1080p Recording | Yes (Up to 30 fps) | Yes (Up to 30 fps) |
| Slow Motion | 30 fps (480p) | n/a |
| Lenses count | Standard: 50 MP Depth: 0.08 MP |
Standard: 13 MP Depth |
| Features | - Bokeh effect - Pro mode |
- Bokeh effect - Pro mode |
| Matrix | 50 MP | 13 MP |
| Aperture | f/1.8 | f/1.8 |
| Focal length | 27 mm | 27 mm |
| Sensor | Samsung S5KJN1 | n/a |
| Sensor size | 1/2.76 | n/a |
| Pixel size | 0.64 μm | n/a |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
Front camera
| Matrix | 5 MP | 8 MP |
| Photo resolution | 3264x2448 pixels | n/a |
| Aperture | f/2.2 | n/a |
| Focal length | 28 mm | n/a |
| Sensor | Samsung S5K5E9 | CMOS |
| Sensor size | 1/5 | n/a |
| Pixel size | 1.12 μm | n/a |
| Autofocus | No | No |
| Stabilization | Digital | No |
| Video resolution | 720p at 30 fps | 1080p (Full HD) at 30 fps |
| TOF 3D sensor | No | No |
Connectivity
| Wi-Fi version | Wi-Fi 5 (802.11 a/b/g/n/ac) | Wi-Fi 5 (802.11 a/b/g/n/ac) |
| Wi-Fi features | - Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
- Dual Band - Wi-Fi Direct - Wi-Fi Hotspot - Wi-Fi Display |
| Bluetooth version | 5 | 5.3 |
| Bluetooth features | LE | LE |
| USB type | USB Type-C | USB Type-C |
| USB version | 2 | 2 |
| USB features | - Charging - USB Storage Mode - OTG |
- Charging - USB Storage Mode - OTG |
| DisplayPort | n/a | No |
| GPS | - GPS - GLONASS - Beidou - Galileo |
- GPS - GLONASS - Galileo |
| NFC* | Varies by region | Varies by region |
| Infrared Port | No | Yes |
| SIM Count* | 2 | 2 |
| SIM Type | Nano | Nano |
| SIM Mode | Dual SIM Standby | Dual SIM Standby |
| eSIM Support * | No | No |
| Hybrid Slot | No | No |
| 2G Bands | GSM 850/900/1800/1900MHz | n/a |
| 3G Bands | WCDMA 1/5/8 | n/a |
| LTE Bands* | LTE (B1/B3/B5/B8/B38/B40/B41) | n/a |
| LTE category | 7 | n/a |
| 5G Support | No | No |
Sound
| Speakers | Mono | n/a |
| 3.5 mm Jack | Yes | Yes |
| FM Radio | No | Yes |
| Dolby Atmos | No | Yes |
Other
| Class | Budget | Budget |
| Announced | July, 2023 yr | July, 2025 yr |
| Release Date | August, 2023 yr | August, 2025 yr |
| Launch Price ($) | 160 | n/a |
| MSRP ($) | n/a | 100 |
| Sensors | - Proximity Sensor - Accelerometer - Compass - Fingerprint sensor |
- Proximity Sensor - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
| Charger Included | Yes 33 W | Yes, 45 W |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
After analyzing the data, we consider Tecno Spark 40C the clear winner in this comparison.
Survey
Total Votes: 0
