| Global Score | |
| 76.4 | 76.1 |
| Basic Information | |
| LG | Samsung |
| Android 5.0, 4.4.2 | Android 10 |
| 2014-05-27 | 2020-06-29 |
| 5.76 x 2.94 x 0.35 inches | 6.61 x 3.02 x 0.32 inches |
| 5.26 ounces | 6.81 ounces |
| Black, Gold, Pink, Purple and White | Black |
| -- | Plastic and Plastic |
| $ 155.00 | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 534 pixels per inch | 270 pixels per inch |
| 450 cd/m2 brightness | -- |
| Capacitive, Multi-touch | No touch screen |
| 10 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Mediatek Helio P35 chipset |
| Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 3 GB (800 MHz) RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | PowerVR GE8320 GPU |
| 9.45 | 9.27 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 9.84 |
| Camera | |
| 13.00 MP + 2.10 MP | 16.00 MP + 13.00 MP |
| f/2.40 aperture | f/1.80 aperture |
| 0.33 inches (1/3.06") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.46 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 7 | 6.7 |
| Battery Life | |
| 3000mAh Li-Ion Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 548 hours standby time 19 hours talk time | -- |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
The LG G3 is a little bit better than the Galaxy A21, getting a overall score of 76.4 against 76.1. Although LG G3 is extremely older and a little bit thicker than Galaxy A21, it's body is still noticeably lighter. These phones include Android operating system, but the LG G3 has the previous 5.0 version while Galaxy A21 has Android 10.
The LG G3 features a much sharper display than Galaxy A21, because although it has a little bit smaller screen, it also counts with a much better pixels density and a much better 2560 x 1440px resolution. The LG G3 counts with a bit superior CPU than Samsung Galaxy A21, because although it has less cpu cores , and they both have 3 GB of RAM, the LG G3 also counts with a graphics processing unit.
Galaxy A21 features a way bigger storage capacity for games and applications than LG G3, and although they both have exactly the same 32 GB internal storage capacity, the Galaxy A21 also has an external memory slot that supports a maximum of 512 GB. The Samsung Galaxy A21 counts with greater battery lifetime than LG G3, because it has a 4000mAh battery capacity.
LG G3 has a little bit better camera than Galaxy A21, because although it has a lesser MP resolution back-facing camera and a way tinier aperture which is not good for taking photos in low-light situations, and they both have the same back-facing camera sensor size, the LG G3 also counts with a much better 3840x2160 video quality.
Even being the best phone in our comparison, the LG G3 is also very cheap compared to the other ones.
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