Compare phones
| Global Score | |
| 66.8 | 71.1 |
| Basic Information | |
| LG | LG |
| Android 7.1 Nougat | Android 10 |
| 2018-05-04 | 2020-05-06 |
| 5.85 x 2.95 x 0.34 inches | 6.57 x 3.07 x 0.33 inches |
| 5.93 ounces | 7.17 ounces |
| Black | Titan gray |
| Metal | -- |
| $ 180.00 | $ 174.00 |
| Display / Screen | |
| 5.3 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 1560 x 720 pixels |
| TFT | IPS LCD |
| 277 pixels per inch | 264 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 425 MSM8917 chipset | MediaTek Helio P22 MT6762 chipset |
| ARM Cortex-A53, 64-bit, 28 nm (Quad-Core 1400 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 2 GB RAM | 3 GB RAM |
| Adreno 308 GPU | IMG PowerVR GE8320 GPU |
| 8.28 | 9.09 |
| Storage | |
| 16 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 1,95 TB) external memory slot |
| 11.36 | 12.76 |
| Camera | |
| 8.00 MP + 5.00 MP | 13.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (Full HD) video resolution |
| 8.36 | 8.14 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The LG K51 has a general score of 71.1, which is a little bit better than the LG K30's 66.8 global score. Both of these phones work with Android operating system, but the LG K51 has the older 10 version while LG K30 has Android 7.1 Nougat version. The LG K51 construction is notably newer and a little bit thinner, but heavier than LG K30.
The LG K51 has a little sharper display than LG K30, because although it has a bit worse pixels number in each screen inch, it also counts with a bigger screen and a slightly better 720 x 1560 resolution. The LG K51 has a quite bigger memory for games and applications than LG K30, and although they both have an external SD slot that holds a maximum of 1,95 TB, the LG K51 also has 32 GB internal memory.
LG K51 features a bit better processor than LG K30, because it has a larger amount of RAM and 4 more processing cores. The LG K51 features superior battery duration than LG K30, because it has a 4000mAh battery capacity. LG K30 shoots just a bit better videos and photos than LG K51, although it has a smaller aperture, a back-facing camera with way less mega-pixels and a lower 1920x1080 video definition.
LG K51 is not only the best phones of the ones we are comparing here, but it's also cheaper than the LG K30, making it easy to pick between these phones.
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