| Global Score | |
| 72.6 | 81.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 15 | Android 13 |
| -- | 6.43 x 3.07 x 0.35 inches |
| -- | Aluminum and Glass |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| -- | 3080 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| -- | 500 pixels per inch |
| No touch screen | No touch screen |
| 2.7 | 8 |
| Performance | |
| Qualcomm Snapdragon 8 Elite SM8650 (4 nm) chipset | Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset |
| processor | processor |
| 12 GB RAM | 8 GB RAM |
| Adreno 830 GPU | Adreno 740 GPU |
| 6.21 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 200.00 MP + 10.00 MP | 200.00 MP + 40.00 MP |
| -- | f/1.70 aperture |
| -- | 69.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.77 inches (1/1.3") sensor |
| 7680 x 4320 (30 fps) video resolution | -- |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 13.42 | 12.43 |
| Networks | |
| -- | Wi-Fi |
| -- | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Nano SIM |
| 7.6 | 10.6 |
| Battery Life | |
| 3050mAh Dual Nano SIM + eSIM Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 5.3 | Bluetooth 5.2 |
| 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 |
Samsung Galaxy S23 Ultra is better than the Galaxy S25 Slim (Rumored), with a global score of 81.5 against 72.6. Both of these devices come with Android OS (operating system), but Samsung Galaxy S23 Ultra has the previous 13 version while Galaxy S25 Slim (Rumored) has Android 15 version. Galaxy S23 Ultra's processing unit is just as good as Galaxy S25 Slim (Rumored)'s processor, because although the Galaxy S23 Ultra has less RAM memory, it also counts with a higher number of cores.
The Galaxy S23 Ultra counts with a much sharper screen than Galaxy S25 Slim (Rumored). They have a screen with the same size. The Samsung Galaxy S23 Ultra and Samsung Galaxy S25 Slim (Rumored) both have extremely similar memory capacity for apps and games, they have exactly the same 128 GB internal storage capacity.
Samsung Galaxy S23 Ultra features a much better battery life than Galaxy S25 Slim (Rumored), because it has 5000mAh of battery capacity. The Galaxy S25 Slim (Rumored) shoots a bit better photos and videos than Samsung Galaxy S23 Ultra, although it has a tinier sensor shooting worse quality pictures, they both have a camera with a 200 mega-pixels resolution.
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