LG K40 vs POCO X3 NFC
| Type | Touch | Touch |
| Waterproofness & dust-resistance | IP53 | |
| Dimensions | 153.00 x 71.90 x 8.30 mm | 165.30 x 76.80 x 9.40 mm |
| Weight | 144.00 g | 215.00 g |
| Display size | 5.70" | 6.67" |
| Display | Color / IPS TFT 16M colors 720 x 1440 px (5.70") 295 ppi | Color / IPS TFT 16M colors 120 Hz 1080 x 2400 px (6.67") 395 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
| |
| Additional display | ||
| Protection of the secondary display | ||
| Standard battery | Li-Ion 3000 mAhBuy powerbank
| Li-Po 5160 mAhBuy powerbank
|
| Quick battery charging | Quick Charge | |
| Wireless battery charging | ||
| Internal memory | 32 GB | 128 GB, 64 GB |
| End-user memory | 20.2 GB | |
| RAM memory | 2 GB, 3 GB | 6 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 2000 GBBuy memory card | microSD, microSDHC, microSDXC up to 256 GBBuy memory card |
| Operating system | Android 8.1 Oreo | Android 10 |
| Interface | - | MIUI 12 |
| Processor | MediaTek Helio P22 MT6762 | Qualcomm Snapdragon 732G |
| Processor clock | 2000 MHz | 2300 MHz |
| GPU | PowerVR GE8320 @650 MHz | Adreno 618 |
| Touchscreen | ||
| SAR (10g) | 1,597 W/kg | |
| DualSIM | ||
| SIM cards standard | SingleSIM(nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | nd | dual standby |
| Hybrid DualSIM | nd | nanoSIM, microSD |
| Announced | 1Q 2019 | 3Q 2020 |
| Other names | X420EM; LM-X420EM | M2007J20CG |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1900, 1800, 900, 850, 800, 700 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300 |
| Standard 5G | ||
| CDMA | 850 | |
| Standard TD-SCDMA | 1900 2000 | |
| UMA |

