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- Galaxy A42 5G vs Galaxy A51
Samsung Galaxy A42 5G vs Samsung Galaxy A51
What Galaxy A42 5G does better (7) and where Galaxy A51 wins (12) — every spec side by side.
vs
5.0Display5.0
3.3Performance2.6
6.7Camera8.1
4.0Battery2.6
7.1Features5.0
Dimensions
Size comparison
Galaxy A42 5GGalaxy A51
| Galaxy A42 5G | Galaxy A51 | Difference | |
|---|---|---|---|
| Height | 164.4 mm | 158.5 mm | +5.9 mm |
| Width | 75.9 mm | 73.6 mm | +2.3 mm |
| Thickness | 8.6 mm | 7.9 mm | +0.7 mm |
| Weight | 193 g | 172 g | +21 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Galaxy A42 5G better than Galaxy A51?
- RAM8 GB vs 4 GB2×
- Geekbench 6 (multi-core)1,910 vs 1,204+59%
- Battery capacity5,000 mAh vs 4,000 mAh+25%
- 5GYes · Galaxy A51: No
- Peak brightness500 nits vs 400 nits+25%
- Process8 nm vs 10 nm+25%
- Main camera aperturef/1.8 vs f/2+11%
Why is Galaxy A51 better than Galaxy A42 5G?
- Optical stabilisationNo · Galaxy A42 5G: Yes
- AnTuTu score324,686 vs 352,699+9%
- Pixel density266 ppi vs 407 ppi+53%
- Rear cameras2 vs 42×
- Weight193 g vs 172 g+12%
- Measured brightness570 nits vs 635 nits+11%
- CPU frequency2.2 GHz vs 2.3 GHz+5%
- Selfie camera20 MP vs 32 MP+60%
- Resolution (width)720 px vs 1,080 px+50%
- Charged in 30 min27% vs 34%+26%
- Thickness8.6 mm vs 7.9 mm+9%
- Screen-to-body ratio84.3% vs 87.4%+4%
Specifications
Side by side
| Design | ||
| Weight | 193 g | 172 g |
| Thickness | 8.6 mm | 7.9 mm |
| Height | 164.4 mm | 158.5 mm |
| Width | 75.9 mm | 73.6 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Glass protection | Corning Gorilla Glass 3 | Gorilla Glass 3 |
| Colours | Prism Dot Black, Prism Dot White, Prism Dot Gray | White, Black |
| Display | ||
| Screen size | 6.6″ | 6.5″ |
| Panel | Super AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 720 px | 1,080 px |
| Resolution (height) | 1,600 px | 2,400 px |
| Pixel density | 266 ppi | 407 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | 500 nits | 400 nits |
| Measured brightness | 570 nits | 635 nits |
| Screen-to-body ratio | 84.3% | 87.4% |
| Performance | ||
| Chipset | Qualcomm SM7225 Snapdragon 750 5G | Samsung Exynos 9611 |
| Chip maker | Qualcomm | Samsung |
| Process | 8 nm | 10 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 2.3 GHz |
| GPU | Adreno 619 | Mali G72 MP3 |
| AnTuTu score | 324,686 | 352,699 |
| Geekbench 6 (multi-core) | 1,910 | 1,204 |
| Memory | ||
| RAM | 8 GB | 4 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | UFS 2.1 | UFS 2.0 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | f/1.8 | f/2 |
| Main sensor size | 1/2.0" | 1/2" |
| Rear cameras | 2 | 4 |
| Optical stabilisation | No | Yes |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | No |
| Max video | 4K | 4K |
| 4K video frame rate | 30 fps | 30 fps |
| Selfie camera | 20 MP | 32 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 4,000 mAh |
| Battery type | Li-Po | Li-Po |
| Wired charging | 15 W | 15 W |
| Charged in 30 min | 27% | 34% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS | GPS, GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Loudspeaker loudness | -30.1 LUFS | — |
| Fingerprint sensor | Under display | Under display |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | proximity, accelerometer, gyro, light, fingerprint |
| SAR (head) | 1.15 W/kg | 0.6 W/kg |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | One UI 5 | One UI 2 |
