Compare phones
| Global Score | |
| 72.6 | 77.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 15 | Android 10 |
| -- | 2020-06-19 |
| -- | 6.44 x 2.96 x 0.35 inches |
| -- | 6.77 ounces |
| -- | Black, Blue, Red and White |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| -- | 1600 x 720 pixels |
| AMOLED | TFT |
| -- | 270 pixels per inch |
| No touch screen | No touch screen |
| 2.7 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8650 (4 nm) chipset | Samsung Exynos 850 chipset |
| processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Adreno 830 GPU | Mali-G76 GPU |
| 6.21 | 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 | |
| 200.00 MP + 10.00 MP | 48.00 MP + 13.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 13.42 | 10.78 |
| Networks | |
| -- | Wi-Fi |
| -- | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7.6 | 6.7 |
| Battery Life | |
| 3050mAh Dual Nano SIM + eSIM Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Samsung Galaxy A21s has a global score of 77.7, which is slightly better than the Samsung Galaxy S25 Slim (Rumored)'s 72.6 global score. Both of these devices have Android OS, but Samsung Galaxy A21s has 10 version and Samsung Galaxy S25 Slim (Rumored) has Android 15 version. Galaxy A21s has a much greater processing power than Galaxy S25 Slim (Rumored), because although it has 9 GB lesser RAM memory, it also counts with more CPU cores.
Samsung Galaxy A21s has a much better screen than Samsung Galaxy S25 Slim (Rumored), although it has a little smaller display. The Galaxy S25 Slim (Rumored) takes a lot better pictures and videos than Galaxy A21s, because it has a back camera with a lot better 200 megapixels resolution, a lot higher video resolution and a much larger sensor shooting way better quality videos and photos.
Samsung Galaxy S25 Slim (Rumored) features a bit more storage to store more games and applications than Galaxy A21s, because although it has no slot for external memory cards, it also counts with more internal memory. The Samsung Galaxy A21s counts with a really longer battery lifetime than Samsung Galaxy S25 Slim (Rumored), because it has a 64 percent larger battery capacity.
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