Compare phones
| Global Score | |
| 74.3 | 76.1 |
| Basic Information | |
| LG | Samsung |
| Android 10 | Android 10 |
| 2020-04-27 | 2020-06-29 |
| 6.50 x 3.02 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 6.77 ounces | 6.81 ounces |
| Blue, Pink and Titanium | Black |
| -- | Plastic and Plastic |
| $ 190.00 | $ 194.00 |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 1600 x 720 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 270 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.3 | 7.3 |
| Performance | |
| MediaTek Helio P35 MT6765 chipset | Mediatek Helio P35 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| PowerVR GE8320 GPU | PowerVR GE8320 GPU |
| 9.27 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 2 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.74 | 9.84 |
| Camera | |
| 32.00 MP + 13.00 MP | 16.00 MP + 13.00 MP |
| -- | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.91 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A21 is a bit better than the LG K51S, having a 76.1 score against 74.3. These phones work with the same Android 10 OS (Operating System), so they should provide the user the same operating system features. Galaxy A21's construction is a bit thinner but just a bit heavier than the LG K51S, and both were released only 2 months apart.
The Samsung Galaxy A21's CPU is very similar to LG K51S's CPU, both have the same number of cores and a 3 GB RAM memory. Samsung Galaxy A21 counts with a display that is just as good as the LG K51S one, they have a higher pixels count per inch of screen, the same resolution of 720 x 1600 and a screen with the same size.
The LG K51S has a much better memory for apps and games than Galaxy A21, because it has more internal storage and a SD card slot that holds a maximum of 2 TB. Samsung Galaxy A21 counts with a battery performance that is just as good as the LG K51S one. The Galaxy A21 takes clearer pictures and videos than LG K51S, although it has a worse (Full HD) video resolution and a back-facing camera with lot less megapixels.
Samsung Galaxy A21 is a little more expensive than LG K51S, but you can get a better phone for that extra money.
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