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- Z4 vs Blade A51
Lava Z4 vs ZTE Blade A51
What Z4 does better (8) and where Blade A51 wins (3) — every spec side by side.
Dimensions
Size comparison
Z4Blade A51
| Z4 | Blade A51 | Difference | |
|---|---|---|---|
| Height | 164.5 mm | 166.5 mm | −2 mm |
| Width | 75.8 mm | 75.6 mm | +0.2 mm |
| Thickness | 9 mm | 8.5 mm | +0.5 mm |
| Weight | 190 g | 174 g | +16 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Z4 better than Blade A51?
- RAM4 GB vs 2 GB2×
- Battery capacity5,000 mAh vs 3,200 mAh+56%
- Selfie camera16 MP vs 5 MP3.2×
- CPU frequency2.3 GHz vs 1.6 GHz+44%
- Process12 nm vs 28 nm2.3×
- Storage (base)64 GB vs 32 GB2×
- Ultra-wide cameraYes · Blade A51: No
- Bluetooth5 vs 4.2+19%
Why is Blade A51 better than Z4?
- NFCNo · Z4: Yes
- Weight190 g vs 174 g+9%
- Thickness9 mm vs 8.5 mm+6%
Specifications
Side by side
| Design | ||
| Weight | 190 g | 174 g |
| Thickness | 9 mm | 8.5 mm |
| Height | 164.5 mm | 166.5 mm |
| Width | 75.8 mm | 75.6 mm |
| Frame | Plastic | — |
| Back | Plastic | — |
| Glass protection | Corning Gorilla Glass 3 | — |
| Colours | Blue, Red | Blue, Gray |
| Display | ||
| Screen size | 6.5″ | 6.5″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,600 px |
| Pixel density | 270 ppi | 269 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Screen-to-body ratio | 82.1% | 81.5% |
| Performance | ||
| Chipset | Mediatek MT6765G Helio G35 | Unisoc SC9863A |
| Chip maker | MediaTek | Unisoc |
| Process | 12 nm | 28 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 1.6 GHz |
| GPU | PowerVR GE8320 | IMG8322 |
| Memory | ||
| RAM | 4 GB | 2 GB |
| Storage (max) | 64 GB | 64 GB |
| Storage (base) | 64 GB | 32 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 13 MP |
| Main camera aperture | f/1.9 | — |
| Main sensor size | 1/3.0" | — |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | Yes | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 16 MP | 5 MP |
| 4K selfie video | No | — |
| Battery | ||
| Battery capacity | 5,000 mAh | 3,200 mAh |
| Battery type | Li-Po | Li-Ion |
| Wireless charging | No | — |
| Connectivity | ||
| 5G | No | — |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | 5 | 4.2 |
| NFC | No | Yes |
| USB | USB Type-C | USB Type-C 2.0 |
| USB version | — | 2 |
| Satellite navigation | — | GLONASS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Rear |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Fingerprint (rear-mounted), accelerometer, proximity |
| Software | ||
| OS at launch | Android 10 | Android 11 (Go edition) |
| Platform | Android | Android |
