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- K30 vs Galaxy A21
LG K30 vs Samsung Galaxy A21
What K30 does better (2) and where Galaxy A21 wins (14) — every spec side by side.
vs
3.6Display3.4
3.0Camera5.6
4.2Features5.0
Dimensions
Size comparison
K30Galaxy A21
| K30 | Galaxy A21 | Difference | |
|---|---|---|---|
| Height | 147 mm | 167.8 mm | −20.8 mm |
| Width | 71.5 mm | 76.7 mm | −5.2 mm |
| Thickness | 8.2 mm | 8.1 mm | +0.1 mm |
| Weight | 147 g | 193 g | −46 g |
Drawn to the same scale from the official dimensions (front and side).
Why is K30 better than Galaxy A21?
- Weight147 g vs 193 g+31%
- Pixel density295 ppi vs 270 ppi+9%
Why is Galaxy A21 better than K30?
- Battery capacity3,000 mAh vs 4,000 mAh+33%
- RAM2 GB vs 3 GB+50%
- Storage (max)16 GB vs 32 GB2×
- CPU frequency1.4 GHz vs 2.35 GHz+68%
- Main camera13 MP vs 16 MP+23%
- Selfie camera5 MP vs 13 MP2.6×
- CPU cores4 vs 82×
- Storage (base)16 GB vs 32 GB2×
- Rear cameras1 vs 22×
- Ultra-wide cameraNo · K30: Yes
- 3.5 mm headphone jackNo · K30: Yes
- Screen size5.4″ vs 6.5″+19%
Specifications
Side by side
| Design | ||
| Weight | 147 g | 193 g |
| Thickness | 8.2 mm | 8.1 mm |
| Height | 147 mm | 167.8 mm |
| Width | 71.5 mm | 76.7 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Colours | — | Black |
| Display | ||
| Screen size | 5.4″ | 6.5″ |
| Panel | IPS | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,440 px | 1,600 px |
| Pixel density | 295 ppi | 270 ppi |
| Refresh rate | — | 60 Hz |
| Screen-to-body ratio | — | 79.3% |
| Performance | ||
| Chipset | Qualcomm Snapdragon 425 | Mediatek MT6765 Helio P35 |
| Chip maker | Qualcomm | MediaTek |
| Process | — | 12 nm |
| CPU cores | 4 | 8 |
| CPU frequency | 1.4 GHz | 2.35 GHz |
| GPU | Adreno 308 | PowerVR GE8320 |
| Memory | ||
| RAM | 2 GB | 3 GB |
| Storage (max) | 16 GB | 32 GB |
| Storage (base) | 16 GB | 32 GB |
| Storage type | — | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 16 MP |
| Main camera aperture | — | f/1.8 |
| Main sensor size | — | 1/3.06" |
| Rear cameras | 1 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | Yes |
| Telephoto camera | No | No |
| Max video | — | 1080p |
| Selfie camera | 5 MP | 13 MP |
| 4K selfie video | — | No |
| Battery | ||
| Battery capacity | 3,000 mAh | 4,000 mAh |
| Battery type | Li-Ion | Li-Po |
| Wired charging | — | 15 W |
| Wireless charging | — | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | — | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 4.1 | 5 |
| NFC | Yes | Yes |
| USB | — | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GPS | GLONASS, BDS |
| Features | ||
| Stereo speakers | — | No |
| 3.5 mm headphone jack | No | Yes |
| Fingerprint sensor | — | Rear |
| Sensors | — | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| SAR (head) | — | 1.27 W/kg |
| Software | ||
| OS at launch | Android 9.0 Pie | Android 10 |
| Platform | Android | Android |
| Interface | LG UX 8.0 | One UI 2.0 |
