| Hardware and OS | LG K40S | |
| Operating system | Android 9.0 (Pie) | |
| Processor | Octa-core 2.0 GHz Cortex-A53 | |
| Chipset | Mediatek MT6762 Helio P22 (12 nm) | |
| GPU | PowerVR GE8320 | |
| Internal memory | 32GB 2GB RAM, 32GB 3GB RAM | |
| External memory | microSD, up to 1 TB (dedicated slot) | |
| Display | LG K40S | other phones |
| Type | IPS LCD | |
| Size | 6.1" inc | |
| Resolution | 720 x 1520 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 80.4% | |
| Display area | 92.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Pixel Density | 276 PPI | |
| Colors | 16M | |
| Connectivity | LG K40S | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 7(2600), 8(900), 20(800) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 5.0, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS | |
| NFC | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | LG K40S | other phones |
| Main camera | 13 MP, Dual | |
| Specs | 13 MP, f/2.2, 26mm (wide), PDAF
-5 MP, (ultrawide) | |
| Features | LED flash, panorama, HDR | |
| Video | 1080p@30fps | |
| Selfie camera | 13 MP, Single | |
| Multimedia | LG K40S | other phones |
| 3.5 mm Jack | Yes | |
| Radio | No | |
| Design | LG K40S | other phones |
| Colors | New Aurora Black, New Moroccan Blue | |
| Dimensions | 156.3 x 73.9 x 8.6 mm | |
| Battery | LG K40S | other phones |
| Battery capacity | 3500 mAh, Non-removable Li-Po | |
| Other | LG K40S | other phones |
| Release date | 2019, August | |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
