Compare phones
| Global Score | |
| 64 | 69.8 |
| Basic Information | |
| Sony | LG |
| Android 4.4.2 | Android 8.1 Oreo |
| -- | 2019-03-20 |
| -- | 6.02 x 2.83 x 0.33 inches |
| -- | 5.11 ounces |
| -- | Black, Blue and Gray |
| -- | Plastic |
| -- | Scratch-Resistant Glass |
| $ 155.00 | $ 120.00 |
| Display / Screen | |
| 6.2 inches | 5.7 inches |
| 1600 x 2560 pixels | 1440 x 720 pixels |
| -- | IPS LCD |
| 487 pixels per inch | 282 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 810 MSM8994 chipset | Qualcomm Snapdragon 450 SDM450 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2000 MHz + Quad-Core 1600 MHz) processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor |
| 4 GB (1600 MHz) RAM | 2 GB RAM |
| Adreno 430 (600 MHz) GPU | Adreno 506 GPU |
| 10.08 | 9 |
| Storage | |
| -- | 16 GB internal memory |
| No SD card slot | microSDXC (up to 1,95 TB) external memory slot |
| 0 | 11.36 |
| Camera | |
| 22.10 MP | 8.00 MP + 5.00 MP |
| f/1.20 aperture | f/2.00 aperture |
| 0.43 inches (1/2.3") sensor | 0.33 inches (1/3") sensor |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.25 | 8.58 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| -- | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| -- | Nano SIM, Dual SIM |
| 2.4 | 6.7 |
| Battery Life | |
| -- | 3000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 1.36 | 4.96 |
| Other Features | |
| Bluetooth | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The LG K40 is slightly better than the Xperia Z3X, having a 69.8 score against 64. Both phones we are comparing include Android OS, but LG K40 has newer 8.1 Oreo version and Xperia Z3X has Android 4.4.2 version, counting with some extra features. Xperia Z3X counts with a better performing processor than LG K40, and although they both have 8 processing cores, the Xperia Z3X also has a 64 bits CPU, more RAM memory and an additional graphics processing unit.
Sony Xperia Z3X features a much sharper display than LG K40, because it has a much greater pixel density, a little bigger screen and a much higher resolution of 2560 x 1600. LG K40 features a much bigger memory to store more apps and games than Xperia Z3X, because it has a slot for an SD memory card that allows up to 1,95 TB.
LG K40 counts with a really longer battery performance than Xperia Z3X. LG K40 features just a bit better camera than Xperia Z3X, although it has a camera with a much lower 8 megapixels resolution, a way smaller camera sensor which gives a way worse image and video quality and a much tinier diafragm aperture which is worse for low light images and videos.
The LG K40 is not only the best phones between the ones we are comparing, but it's also a bargain compared to others.
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