Compare phones
| Global Score | |
| 90.7 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 14 | Android 10 |
| -- | 2020-06-29 |
| -- | 6.61 x 3.02 x 0.32 inches |
| -- | 6.81 ounces |
| -- | Black |
| Glass (Corning Gorilla Glass) and Titanium | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3088 x 1440 pixels | 1600 x 720 pixels |
| Dynamic AMOLED | IPS LCD |
| 501 pixels per inch | 270 pixels per inch |
| 2600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 10.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 4 chipset | Mediatek Helio P35 chipset |
| processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 3 GB RAM |
| Yes GPU | PowerVR GE8320 GPU |
| 6.21 | 9.27 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 200.00 MP + 12.00 MP | 16.00 MP + 13.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.77 inches (1/1.3") sensor | 0.33 inches (1/3.06") 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 | -- |
| 14.74 | 9.35 |
| 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 |
| 10.6 | 6.7 |
| Battery Life | |
| 5000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S25 Ultra is better than Galaxy A21, with a 90.7 score against 76.1. Galaxy S25 Ultra's construction is extremely thinner and extremely lighter than Galaxy A21. These phones come with Android operating system, but Galaxy S25 Ultra has a newer 14 version and Galaxy A21 has Android 10, so it counts with a lot of extra features and performance optimizations.
The Galaxy A21 features an extremely better processor than Galaxy S25 Ultra, although it has 9 GB lesser RAM memory, they both have the same number of cores. The Galaxy S25 Ultra features a lot better display than Samsung Galaxy A21, because it has a lot higher 1440 x 3088 resolution, a lot higher number of pixels per inch in the screen and a little bit bigger display.
The Galaxy S25 Ultra features a very superior storage for apps and games than Samsung Galaxy A21, because although it has no SD card slot, it also counts with 224 GB more internal memory. Galaxy S25 Ultra features improved battery life than Galaxy A21, because it has a 25% more battery size. Galaxy S25 Ultra captures greater photos and videos than Galaxy A21, because it has a lot larger sensor, a bigger aperture for better photography in low-light situations, a camera in the back with lot more MP and a much higher video quality.
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