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- 503 vs Redmi A3 Pro
TCL 503 vs Xiaomi Redmi A3 Pro
What 503 does better (2) and where Redmi A3 Pro wins (13) — every spec side by side.
vs
2.5Display5.4
2.3Camera5.1
3.5Battery5.2
2.9Features6.4
Dimensions
Size comparison
503Redmi A3 Pro
| 503 | Redmi A3 Pro | Difference | |
|---|---|---|---|
| Height | 163.9 mm | 171.9 mm | −8 mm |
| Width | 75.5 mm | 77.8 mm | −2.3 mm |
| Thickness | 8.9 mm | 8.2 mm | +0.7 mm |
| Weight | 186 g | 204 g | −18 g |
Drawn to the same scale from the official dimensions (front and side).
Why is 503 better than Redmi A3 Pro?
- Weight186 g vs 204 g+10%
- Pixel density267 ppi vs 260 ppi+3%
Why is Redmi A3 Pro better than 503?
- Main camera8 MP vs 50 MP6.2×
- Refresh rate60 Hz vs 90 Hz+50%
- Storage (max)64 GB vs 128 GB2×
- NFCNo · 503: Yes
- RAM3 GB vs 4 GB+33%
- Battery capacity5,000 mAh vs 5,160 mAh+3%
- CPU frequency1.6 GHz vs 2 GHz+25%
- Storage (base)64 GB vs 128 GB2×
- Screen size6.6″ vs 6.9″+4%
- Bluetooth4.2 vs 5.4+29%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Main camera aperturef/2 vs f/1.8+11%
Specifications
Side by side
| Design | ||
| Weight | 186 g | 204 g |
| Thickness | 8.9 mm | 8.2 mm |
| Height | 163.9 mm | 171.9 mm |
| Width | 75.5 mm | 77.8 mm |
| Frame | Plastic | — |
| Back | Plastic | — |
| Colours | Space Gray, Midnight Blue | Blue, Black |
| Display | ||
| Screen size | 6.6″ | 6.9″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,612 px | 1,640 px |
| Pixel density | 267 ppi | 260 ppi |
| Refresh rate | 60 Hz | 90 Hz |
| Peak brightness | 350 nits | — |
| Screen-to-body ratio | 84.6% | 84% |
| Performance | ||
| Chipset | Unisoc SC9863A | Mediatek Helio G81 Ultra |
| Chip maker | Unisoc | MediaTek |
| Process | 28 nm | — |
| CPU cores | 8 | 8 |
| CPU frequency | 1.6 GHz | 2 GHz |
| GPU | PowerVR GE8322 | Mali-G52 MC2 |
| Memory | ||
| RAM | 3 GB | 4 GB |
| Storage (max) | 64 GB | 128 GB |
| Storage (base) | 64 GB | 128 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 8 MP | 50 MP |
| Main camera aperture | f/2 | f/1.8 |
| Main sensor size | 1/4.0" | — |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 5 MP | — |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,160 mAh |
| Wired charging | 10 W | 10 W |
| Wireless charging | No | No |
| Connectivity | ||
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 4.2 | 5.4 |
| NFC | No | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Side |
| Sensors | Fingerprint (rear-mounted), accelerometer | Fingerprint (side-mounted), accelerometer, compass |
| SAR (head) | — | 1.43 W/kg |
| Software | ||
| OS at launch | Android 14 (Go edition) | Android 14 |
| Platform | Android | Android |
| Interface | — | HyperOS |
