| Global Score | |
| 85.7 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 10 |
| 2015-04-10 | 2020-06-19 |
| 5.59 x 2.76 x 0.28 inches | 6.44 x 2.96 x 0.35 inches |
| 4.66 ounces | 6.77 ounces |
| Black, Gold, Green and White | Black, Blue, Red and White |
| Aluminium and Glass | -- |
| Scratch-Resistant Glass | -- |
| $ 950.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.5 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 1600 x 720 pixels |
| Super AMOLED | TFT |
| 576 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 7.2 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Samsung Exynos 850 chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB (1600 MHz) RAM | 3 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Mali-G76 GPU |
| 10.08 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 16.00 MP + 5.00 MP | 48.00 MP + 13.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.47 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 2600mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.56 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Galaxy S6 Edge is much better than Galaxy A21s, having an 85.7 score against 77.7. Despite of the fact that Galaxy S6 Edge is extremely older than the Galaxy A21s, it's construction is somewhat thinner and noticeably lighter. Both phones in this review include Android OS (operating system), but the Galaxy S6 Edge has the previous 5.0 version and Galaxy A21s has Android 10.
The Galaxy S6 Edge counts with an incredibly better screen than Galaxy A21s, because although it has a lot smaller screen, it also counts with a much higher resolution of 2560 x 1440px and a way greater amount of pixels per display inch. The Samsung Galaxy S6 Edge counts with just a bit more storage to store more games and applications than Galaxy A21s, because although it has no slot for an external memory card, it also counts with 128 GB internal storage.
The Samsung Galaxy S6 Edge counts with a faster processing unit than Samsung Galaxy A21s, and although they both have the same RAM memory amount and a Octa-Core processing unit, the Samsung Galaxy S6 Edge also has an additional graphics co-processor and a 64-bit processing unit. Samsung Galaxy A21s shoots much better photos and videos than Galaxy S6 Edge, because although it has a smaller aperture which is not nice for low light captures and video, and they both have the same 1920x1080 (Full HD) video quality and the same video frame rate, the Samsung Galaxy A21s also counts with a way better 48 MP resolution back facing camera and a way bigger camera sensor capturing lot better quality photographs.
Samsung Galaxy A21s features a very superior battery life than Galaxy S6 Edge, because it has a 92% bigger battery capacity.
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