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- O2 vs Redmi A4
Lava O2 vs Xiaomi Redmi A4
What O2 does better (5) and where Redmi A4 wins (7) — every spec side by side.
Dimensions
Size comparison
O2Redmi A4
| O2 | Redmi A4 | Difference | |
|---|---|---|---|
| Height | 165 mm | 171.9 mm | −6.9 mm |
| Width | 76.1 mm | 77.8 mm | −1.7 mm |
| Thickness | 8.7 mm | 8.2 mm | +0.5 mm |
| Weight | 200 g | 212 g | −12 g |
Drawn to the same scale from the official dimensions (front and side).
Why is O2 better than Redmi A4?
- RAM8 GB vs 6 GB+33%
- Storage (base)128 GB vs 64 GB2×
- Weight200 g vs 212 g+6%
- Pixel density270 ppi vs 260 ppi+4%
- Selfie camera8 MP vs 5 MP+60%
Why is Redmi A4 better than O2?
- Refresh rate90 Hz vs 120 Hz+33%
- Battery capacity5,000 mAh vs 5,160 mAh+3%
- Process12 nm vs 4 nm3×
- Screen size6.5″ vs 6.9″+6%
- Thickness8.7 mm vs 8.2 mm+6%
- Bluetooth5 vs 5.3+6%
- Screen-to-body ratio81.2% vs 84%+3%
Specifications
Side by side
| Design | ||
| Weight | 200 g | 212 g |
| Thickness | 8.7 mm | 8.2 mm |
| Height | 165 mm | 171.9 mm |
| Width | 76.1 mm | 77.8 mm |
| Frame | — | Plastic |
| Back | — | Glass |
| Ingress protection | — | IP52 |
| Water resistance (IPx) | — | IPx2 |
| Colours | Imperial Green, Majestic Purple, Royal Gold | Sparkle Purple, Starry Black |
| Display | ||
| Screen size | 6.5″ | 6.9″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,640 px |
| Pixel density | 270 ppi | 260 ppi |
| Refresh rate | 90 Hz | 120 Hz |
| Peak brightness | — | 600 nits |
| Screen-to-body ratio | 81.2% | 84% |
| Performance | ||
| Chipset | Unisoc Tiger T616 | Qualcomm SM4635 Snapdragon 4s Gen 2 |
| Chip maker | Unisoc | Qualcomm |
| Process | 12 nm | 4 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2 GHz | 2 GHz |
| GPU | Mali-G57 MP1 | Adreno |
| AnTuTu score | — | 491,371 |
| Geekbench 6 (multi-core) | — | 1,899 |
| Memory | ||
| RAM | 8 GB | 6 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 128 GB | 64 GB |
| Storage type | UFS 2.2 | UFS 2.2 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | — | f/1.8 |
| 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 | 5,160 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 18 W | 18 W |
| Charged in 30 min | — | 25% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | — | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5.3 |
| NFC | No | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | — | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity | Fingerprint (side-mounted) |
| SAR (head) | — | 0.81 W/kg |
| Software | ||
| OS at launch | Android 13 | Android 14 |
| Platform | Android | Android |
| Interface | — | HyperOS |
| Major OS updates promised | — | 2 |
