Tecno Spark 20C vs Xiaomi Redmi 15 4G
Compared 2 smartphones : Tecno Spark 20C Manufactured in December, 2023, with display 6.6 with chipsetMediaTek Helio G36, vs Xiaomi Redmi 15 4G, Manufactured in August, 2025 with chipsetQualcomm Snapdragon 685. Below are specs, tests, pros and cons for each device
Key Differences
Reasons to choose Tecno Spark 20C
- Lighter design: 185g vs 224g
Reasons to choose Xiaomi Redmi 15 4G
- Larger display: 6.9in
- Higher pixel density: 374ppi
- Higher refresh rate: 144Hz
- Higher battery capacity: 7000mAh vs 5000mAh
- Infrared port
Versions
| Memory Options | - 4/128 GB - 4/256 GB - 8/128 GB |
- 6/128 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 | 6.6 in | 6.9 in |
| Resolution | 720x1612 pixels | 1080x2340 pixels |
| Aspect ratio | 20:9 | 19.5:9 |
| Pixel density | 267 ppi | 374 ppi |
| Refresh rate | 90 Hz | 144 Hz |
| Adaptive refresh rate | No | Yes |
| Max brightness | 450 nits | n/a |
| HDR support | No | No |
| Screen-to-body ratio | 85 % | 83.1 % |
Design & Build
| Height | 163.69 mm (6.44 in) | 171.1 mm (6.74 in) |
| Width | 75.6 mm (2.98 in) | 82.1 mm (3.23 in) |
| Thickness | 8.55 mm (0.34 in) | 8.6 mm (0.34 in) |
| Weight | 185 g (6.53 oz) | 224 g (7.9 oz) |
| Water resistance | No | IP64 |
| Back panel | Plastic | Plastic |
| Frame | Plastic | Plastic |
| Colors | - White - Black - Gold - Yellow |
- Black - Gray - Purple |
| Fingerprint sensor | Yes In-Button | Yes, In-Button |
Screen-to-body ratio
Performance
| Chipset | MediaTek Helio G36 | Qualcomm Snapdragon 685 |
| Max Frequency | 2200 MHz | 2800 MHz |
| CPU Cores | 8 (4 + 4) | 8 (4 + 4) |
| Architecture | - 4/1.8 (Cortex-A53) - 4/2.2 (Cortex-A53) |
- 4/1.9 (Cortex-A53) - 4/2.8 (Cortex-A73) |
| Process | TSMC | TSMC |
| Transistor Size | 12 nm | 6 nm |
| Neural Processor | No | Hexagon 686 |
| Graphics | PowerVR GE8320 | Adreno 610 |
| GPU Cores | 32 | 128 |
| GPU Frequency | 680 MHz | 1260 MHz |
| FLOPS | 43.5 GFLOPS | 322.6 GFLOPS |
| Geekbench 6 (Single-Core) | 189 | 475 |
| Geekbench 6 (Multi-Core) | 781 | 1514 |
| CPU | 48839 | 114885 |
| GPU | 17599 | 57988 |
| Memory | 46814 | 103236 |
| UX | 37517 | 104881 |
| NanoReview Score | 150769 | 380990 |
Memory
| RAM Size | - 4 GB - 8 GB |
6 GB |
| Memory Type | LPDDR4X | LPDDR4X |
| Memory Frequency | 1600 MHz | 2133 MHz |
| Channels | 2 | 2 |
| Storage Capacity | - 128 GB - 256 GB | 128 GB |
| Storage Type | eMMC 5.1 | UFS 2.2 |
| Memory Card | MicroSD | MicroSD |
Software
| OS | Android 13 | Android 15 |
| UI Skin | HiOS 12.6 | HyperOS 2.0 |
Battery
| Volume | 5000 mAh | 7000 mAh |
| Max Charging Power | 18 W | 33 W |
| Battery Type | Li-Po | n/a |
| Removable | No | No |
| Wireless Charging | No | No |
| Reverse Charging | No | No |
| Fast Charging | Yes (50% in 40 min) | Yes |
| Full Charge Time | 1:50 h | n/a |
Main camera
| Matrix | 50 MP | 50 MP |
| Zoom | Digital | Digital |
| Flash | Dual LED | LED |
| Stabilization | Digital | Digital |
| 8K Recording | No | No |
| 4K Recording | No | No |
| 1080p Recording | Yes (Up to 30 fps) | Yes (Up to 30 fps) |
| Lenses count | Standard: 50 MP Depth: 0.08 MP |
Standard: 50 MP Depth |
| Features | - Bokeh effect - Pro mode |
Bokeh effect |
| Matrix | 50 MP | 50 MP |
| Aperture | n/a | f/1.8 |
| Sensor size | 1/2.8 | n/a |
| Autofocus | Phase autofocus | Phase autofocus |
| Stabilization | Digital | Digital |
Front camera
| Matrix | 8 MP | 8 MP |
| Aperture | n/a | f/2.0 |
| Sensor | CMOS | n/a |
| Autofocus | No | No |
| Stabilization | No | Digital |
| Video resolution | 1080p (Full HD) 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 |
| 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 |
| GPS | - GPS - GLONASS - Galileo |
- GPS - GLONASS - Beidou - Galileo |
| NFC* | No | Yes |
| 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 |
| LTE category | 7 | n/a |
| 5G Support | No | No |
Sound
| Speakers | Stereo | n/a |
| 3.5 mm Jack | Yes | Yes |
| FM Radio | Yes | No |
| Dolby Atmos | No | n/a |
Other
| Class | Budget | Budget |
| Announced | November, 2023 yr | August, 2025 yr |
| Release Date | December, 2023 yr | August, 2025 yr |
| Launch Price ($) | 130 | n/a |
| MSRP ($) | n/a | 150 |
| Sensors | - Proximity Sensor - Gyroscope - Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
- Accelerometer - Ambient Light Sensor - Compass - Fingerprint sensor |
| Charger Included | Yes 18 W | Yes, 33 W |
*
Attention!
Config, frequencies, NFC, and other specs may vary by region.
Results
After analyzing the data, we consider Xiaomi Redmi 15 4G the clear winner in this comparison.
Survey
Total Votes: 1