| Global Score | |
| 79 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4 | Android 10 |
| 2013-03-14 | 2020-06-19 |
| 5.38 x 2.75 x 0.31 inches | 6.44 x 2.96 x 0.35 inches |
| 4.59 ounces | 6.77 ounces |
| Black, Blue, Red and White | Black, Blue, Red and White |
| Polycarbonate | -- |
| Scratch-Resistant Glass | -- |
| $ 135.00 | -- |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 441 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 600 APQ8064T chipset | Samsung Exynos 850 chipset |
| Krait 300 (Quad-Core 1900 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 2 GB (800 MHz) RAM | 3 GB RAM |
| Adreno 320 (400 MHz) GPU | Mali-G76 GPU |
| 9 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.46 | 9.84 |
| Camera | |
| 13.00 MP + 2.00 MP | 48.00 MP + 13.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| 31.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.02 | 10.78 |
| 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, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 2600mAh Li-Ion Battery | 5000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 17 hours talk time | -- |
| 4.56 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
The Galaxy S4 is a little bit better than the Samsung Galaxy A21s, getting a score of 79 against 77.7. These devices come with Android OS (operating system), but the Galaxy S4 has older 4.4 version and Samsung Galaxy A21s has Android 10 version. The Galaxy S4 is an extremely older cellphone than the Samsung Galaxy A21s, but it's somewhat thinner and lighter anyway.
Samsung Galaxy S4 has an incredibly better screen than Samsung Galaxy A21s, because although it has a way smaller display, it also counts with a way greater quantity of pixels per screen inch and a better resolution of 1920 x 1080px. The Samsung Galaxy A21s features a little faster processing unit than Galaxy S4, because although it has doesn't have an additional GPU, it also counts with a greater number of cores (and also faster) and a larger amount of RAM memory.
The Galaxy A21s features a bit bigger storage for apps and games than Galaxy S4, because although it has only 32 GB internal memory, it also counts with an external memory slot that holds up to 512 GB. Samsung Galaxy A21s counts with a very superior battery life than Samsung Galaxy S4, because it has 5000mAh of battery capacity instead of 2600mAh.
Galaxy A21s has a superior camera than Samsung Galaxy S4, and although they both have the same video frame rates and the same video quality, the Galaxy A21s also has a larger aperture to take better images and video in low-light situations, a much larger back camera sensor taking more light and vivid colors and a way more mega-pixels back facing camera.
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