Compare phones
| Global Score | |
| 82.6 | 84.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 11, 10 |
| -- | 2020-03-23 |
| -- | 6.26 x 2.96 x 0.35 inches |
| -- | 6.63 ounces |
| -- | Midnight blue and Raven black |
| Aluminum and Glass (Corning Gorilla Glass Victus 2) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 800.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 416 pixels per inch | 403 pixels per inch |
| 2600 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 4 chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Yes GPU | Mali-G72 MP3 GPU |
| 6.21 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 50.00 MP + 12.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (30 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.54 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | 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 |
| 10.6 | 6.7 |
| Battery Life | |
| 4000mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M21 has a general score of 84.1, which is slightly better than the Galaxy S25's 82.6 overall score. Both of these phones work with Android OS (Operating System), but Samsung Galaxy M21 has the previous 11 version and Galaxy S25 has Android 14. The Samsung Galaxy S25 counts with a sharper screen than Galaxy M21, because although it has a bit smaller display, and they both have the same exact resolution of 1080 x 2340, the Samsung Galaxy S25 also counts with a quite higher screen density and a lot brighter screen.
The Samsung Galaxy M21 has a very superior processing power than Galaxy S25, although it has lesser RAM, they both have a Octa-Core CPU. Galaxy S25 counts with just a bit better camera than Galaxy M21, because it has a much bigger sensor which offers a much better photo and video quality, a lot higher video definition, a bigger camera aperture and a more mega-pixels back facing camera.
Galaxy M21 has a quite bigger memory capacity to store more apps and games than Galaxy S25, because although it has less internal storage capacity, it also counts with a SD extension slot that allows a maximum of 512 GB. Samsung Galaxy M21 features a much better battery life than Samsung Galaxy S25, because it has 6000mAh of battery capacity.
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