| Global Score | |
| 74.3 | 80.1 |
| Basic Information | |
| LG | Xiaomi |
| Android 10 | Android 15 |
| 2020-04-27 | -- |
| 6.50 x 3.02 x 0.33 inches | -- |
| 6.77 ounces | -- |
| Blue, Pink and Titanium | -- |
| $ 190.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 1600 x 720 pixels | -- |
| IPS LCD | AMOLED |
| 270 pixels per inch | -- |
| -- | 3000 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 5 |
| Performance | |
| MediaTek Helio P35 MT6765 chipset | Qualcomm Snapdragon 8 Elite SM8750-AB (4 nm) chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | processor |
| 3 GB RAM | 16 GB RAM |
| PowerVR GE8320 GPU | Adreno 830 GPU |
| 9.27 | 6.3 |
| Storage | |
| 64 GB internal memory | 512 GB internal memory |
| microSDXC (up to 2 TB) external memory slot | No SD card slot |
| 14.74 | 17.6 |
| Camera | |
| 32.00 MP + 13.00 MP | 200.00 MP + 32.00 MP |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 8.91 | 12.87 |
| Networks | |
| Wi-Fi | -- |
| Mobile Hotspot | -- |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 7.6 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Si - Carbon Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.4 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
The Xiaomi 15 Ultra (Rumored) has a general score of 80.1, which is slightly better than LG K51S's 74.3 global score. Both phones in our current comparison have Android OS (operating system), but Xiaomi 15 Ultra (Rumored) has a more recent 15 version and LG K51S has Android 10, providing you lots of additional features and performance tweaks. Xiaomi 15 Ultra (Rumored) is a extremely lighter and way thinner cellphone than LG K51S.
The LG K51S has a way better screen than Xiaomi 15 Ultra (Rumored), although it has a little smaller display. The LG K51S counts with a much better performing CPU than Xiaomi 15 Ultra (Rumored), although it has a smaller amount of RAM memory, they both have a Octa-Core processing unit. The Xiaomi 15 Ultra (Rumored) features a better memory capacity for games and applications than LG K51S, because although it has no external memory card slot, it also counts with more internal memory.
Xiaomi 15 Ultra (Rumored) counts with a much better battery lifetime than LG K51S, because it has a 50 percent greater battery size. The Xiaomi 15 Ultra (Rumored) has a very superior camera than LG K51S, because it has a lot higher 7680x4320 video definition and a camera in the back with lot more megapixels.
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