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- RS4 vs C51s
itel RS4 vs Realme C51s
What RS4 does better (12) and where C51s wins (4) — every spec side by side.
Dimensions
Size comparison
RS4C51s
| RS4 | C51s | Difference | |
|---|---|---|---|
| Height | 163.5 mm | 167.2 mm | −3.7 mm |
| Width | 75.5 mm | 76.7 mm | −1.2 mm |
| Thickness | 8.2 mm | 7.5 mm | +0.7 mm |
| Weight | 198 g | 182 g | +16 g |
Drawn to the same scale from the official dimensions (front and side).
Why is RS4 better than C51s?
- RAM12 GB vs 6 GB2×
- Peak brightness1,300 nits vs 560 nits2.3×
- Storage (max)256 GB vs 128 GB2×
- Stereo speakersYes · C51s: No
- Wired charging45 W vs 33 W+36%
- Refresh rate120 Hz vs 90 Hz+33%
- CPU frequency2.2 GHz vs 1.8 GHz+22%
- Process6 nm vs 12 nm2×
- Pixel density269 ppi vs 260 ppi+3%
- Selfie camera8 MP vs 5 MP+60%
- Charged in 30 min80% vs 54%+48%
- Main camera aperturef/1.6 vs f/1.8+12%
Why is C51s better than RS4?
- Weight198 g vs 182 g+9%
- Screen size6.6″ vs 6.7″+3%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Thickness8.2 mm vs 7.5 mm+9%
Specifications
Side by side
| Design | ||
| Weight | 198 g | 182 g |
| Thickness | 8.2 mm | 7.5 mm |
| Height | 163.5 mm | 167.2 mm |
| Width | 75.5 mm | 76.7 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Ingress protection | — | IP54 |
| Water resistance (IPx) | — | IPx4 |
| Colours | Silvery White, Elegant Beige, Lurex Black | Shiny Green, Mighty Black |
| Display | ||
| Screen size | 6.6″ | 6.7″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,612 px | 1,600 px |
| Pixel density | 269 ppi | 260 ppi |
| Refresh rate | 120 Hz | 90 Hz |
| Peak brightness | 1,300 nits | 560 nits |
| Screen-to-body ratio | 84.2% | 85.5% |
| Performance | ||
| Chipset | Mediatek Helio G99 Ultimate | Unisoc Tiger T612 |
| Chip maker | MediaTek | Unisoc |
| Process | 6 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 1.8 GHz |
| GPU | Mali-G57 MC2 | Mali-G57 |
| AnTuTu score | 565,979 | — |
| Geekbench 6 (multi-core) | 1,829 | — |
| Memory | ||
| RAM | 12 GB | 6 GB |
| Storage (max) | 256 GB | 128 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | UFS 2.2 | — |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/1.6 | f/1.8 |
| Main sensor size | — | 1/2.76" |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 8 MP | 5 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,000 mAh |
| Battery type | Li-Po | — |
| Wired charging | 45 W | 33 W |
| Charged in 30 min | 80% | 54% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 5.1 | 5 |
| NFC | Yes | Yes |
| USB | USB Type-C | USB Type-C |
| USB version | 2 | — |
| Satellite navigation | GLONASS, GALILEO | GLONASS, GALILEO |
| Features | ||
| Stereo speakers | Yes | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 13 | Android 13 |
| Platform | Android | Android |
| Interface | itel OS 13 | realme UI T Edition |
