| Global Score | |
| 87.4 | 81.5 |
| Basic Information | |
| Samsung | Samsung |
| Android 5.0 | Android 13 |
| 2015-04-11 | -- |
| 5.65 x 2.78 x 0.27 inches | 6.43 x 3.07 x 0.35 inches |
| 4.87 ounces | -- |
| Black, Blue, Gold and White | -- |
| Aluminium and Glass | Aluminum and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 252.00 | -- |
| Display / Screen | |
| 5.1 inches | 6.8 inches |
| 1440 x 2560 pixels (Quad HD / 2K) | 3080 x 1440 pixels |
| Super AMOLED | Dynamic AMOLED |
| 576 pixels per inch | 500 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.9 | 8 |
| Performance | |
| Exynos 7 Octa 7420 chipset | Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset |
| 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor | processor |
| 3 GB (1600 MHz) RAM | 8 GB RAM |
| Mali-T760 MP8 (650 MHz) GPU | Adreno 740 GPU |
| 10.08 | 6.21 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 16.00 MP + 5.00 MP | 200.00 MP + 40.00 MP |
| f/1.90 aperture | f/1.70 aperture |
| 28.00mm focal length | 69.00mm focal length |
| 0.38 inches (1/2.6") sensor | 0.77 inches (1/1.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | -- |
| 10.01 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSM | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 2550mAh Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 4.56 | 6.8 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.2 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| 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 S6 is just a bit better than Galaxy S23 Ultra, getting a score of 87.4 against 81.5. Both phones in this comparison review come with Android OS, but Samsung Galaxy S6 has the previous 5.0 version while Galaxy S23 Ultra has Android 13. Galaxy S6 has a really superior performance than Samsung Galaxy S23 Ultra, because although it has a lower amount of RAM memory, and they both have 8 CPU cores, the Galaxy S6 also counts with a graphics processing unit and a 64-bits processing unit.
Samsung Galaxy S6 features a much better display than Galaxy S23 Ultra, because although it has a quite lower 2560 x 1440 resolution and a lot smaller screen, it also counts with a little bit better pixels number per inch in the screen. Galaxy S23 Ultra takes much clearer pictures and videos than Samsung Galaxy S6, because it has a bigger aperture, a camera in the back with lot more megapixels and a much larger back camera sensor.
The Galaxy S23 Ultra's storage for applications, games, photos and videos is just as good as the Samsung Galaxy S6 one, both of them have the same 128 GB internal storage capacity. Samsung Galaxy S23 Ultra counts with a way better battery life than Samsung Galaxy S6, because it has a 96 percent bigger battery size.
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