Compare phones
| Global Score | |
| 74.3 | 76 |
| Basic Information | |
| LG | OnePlus |
| Android 10 | Android 11 |
| 2020-04-27 | 2021-04-02 |
| 6.50 x 3.02 x 0.33 inches | 6.30 x 2.92 x 0.34 inches |
| 6.77 ounces | 6.77 ounces |
| Blue, Pink and Titanium | Arctic Sky, Astral Black and Winter Mist |
| -- | Aluminum and Glass (Corning Gorilla Glass) |
| -- | Scratch-Resistant Glass |
| $ 190.00 | $ 700.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 1600 x 720 pixels | 2400 x 1080 pixels |
| IPS LCD | AMOLED |
| 270 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 8.2 |
| Performance | |
| MediaTek Helio P35 MT6765 chipset | Qualcomm Snapdragon 888 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| PowerVR GE8320 GPU | Adreno 660 GPU |
| 9.27 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 2 TB) external memory slot | No SD card slot |
| 14.74 | 10.1 |
| Camera | |
| 32.00 MP + 13.00 MP | 48.00 MP + 16.00 MP |
| -- | f/1.80 aperture |
| -- | 23.00mm focal length |
| -- | 0.71 inches (1/1.4") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 8.91 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The OnePlus 9 is slightly better than LG K51S, having a 76 score against 74.3. OnePlus 9 is a just a little bit thicker phone than the LG K51S, but both of them weight the same. Both devices in our current comparison include Android OS, but OnePlus 9 has newer 11 version and LG K51S has Android 10.
OnePlus 9 counts with just a bit better hardware performance than LG K51S, and although they both have the same number of cores, the OnePlus 9 also has a greater amount of RAM. OnePlus 9 counts with a sharper screen than LG K51S, and although they both have a screen of the same size, the OnePlus 9 also has a greater amount of pixels per inch of display and a way better 1080 x 2400 resolution.
LG K51S counts with much more storage for games and applications than OnePlus 9, because although it has just 64 GB internal memory capacity, it also counts with a slot for SD memory cards that supports up to 2 TB. The OnePlus 9 features just a little better battery performance than LG K51S, because it has a 4500mAh battery capacity against 4000mAh.
OnePlus 9 has a very superior camera than LG K51S, because it has a back camera with lot more megapixels and a way higher 7680x4320 video resolution.
Although OnePlus 9 is a better device, it costs a lot more than LG K51S, and it doesn't have such a good quality/price relation as LG K51S. So if you want that extra specs, you can buy OnePlus 9, but if you don't you can save a couple dollars and buy the LG K51S, resigning a couple specifications.
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