| Global Score | |
| 44.3 | 69.8 |
| Basic Information | |
| LG | LG |
| Android 2.3 | Android 8.1 Oreo |
| -- | 2019-03-20 |
| 4.44 x 2.32 x 0.47 inches | 6.02 x 2.83 x 0.33 inches |
| 4.40 ounces | 5.11 ounces |
| -- | Black, Blue and Gray |
| -- | Plastic |
| -- | Scratch-Resistant Glass |
| $ 125.00 | $ 120.00 |
| Display / Screen | |
| 3.2 inches | 5.7 inches |
| 320 x 480 pixels | 1440 x 720 pixels |
| TFT | IPS LCD |
| 180 pixels per inch | 282 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 7.1 | 7.3 |
| Performance | |
| -- | Qualcomm Snapdragon 450 SDM450 chipset |
| Single-Core 800 MHz processor | ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor |
| -- | 2 GB RAM |
| GPU | Adreno 506 GPU |
| 7.02 | 9 |
| Storage | |
| 183,3 MB internal memory | 16 GB internal memory |
| microSD, microSDHC (up to 32 GB) external memory slot | microSDXC (up to 1,95 TB) external memory slot |
| 2.02 | 11.36 |
| Camera | |
| 3.20 MP | 8.00 MP + 5.00 MP |
| -- | f/2.00 aperture |
| -- | 0.33 inches (1/3") sensor |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 5.17 | 8.58 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| EV-DO A and CDMA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| -- | Nano SIM, Dual SIM |
| 2.6 | 6.7 |
| Battery Life | |
| 1500mAh Li-Ion Battery | 3000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 168 hours standby time 5 hours talk time | -- |
| 3.28 | 4.96 |
| Other Features | |
| Bluetooth 3.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer and Proximity Sensor | Accelerometer, Compass, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The LG K40 is way better than the LG Optimus 2, having a 69.8 score against 44.3. The LG K40 body is somewhat heavier but much thinner than LG Optimus 2. Both of these devices come with Android OS, but LG K40 has a more recent 8.1 Oreo version and LG Optimus 2 has Android 2.3. LG K40 features a slightly better screen than LG Optimus 2, because it has a lot larger display, a much better 720 x 1440px resolution and a lot better count of pixels per screen inch.
The LG K40 counts with much more memory to store more games and applications than LG Optimus 2, because it has more internal memory capacity and a SD memory slot that supports up to 1,95 TB. The LG K40 features a much faster processing unit than LG Optimus 2, because it has a larger number of faster cores.
The LG K40 has a way better battery lifetime than LG Optimus 2, because it has a 100 percent greater battery capacity. LG K40 counts with a very superior camera than LG Optimus 2, because it has a much better 8 mega-pixels resolution back camera.
Even being the best phone in this comparison, LG K40 is also cheaper than the LG Optimus 2.
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