| Global Score | |
| 81.5 | 87.4 |
| Basic Information | |
| Samsung | Samsung |
| Android 13 | Android 5.0 |
| -- | 2015-04-11 |
| 6.43 x 3.07 x 0.35 inches | 5.65 x 2.78 x 0.27 inches |
| -- | 4.87 ounces |
| -- | Black, Blue, Gold and White |
| Aluminum and Glass | Aluminium and Glass |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 252.00 |
| Display / Screen | |
| 6.8 inches | 5.1 inches |
| 3080 x 1440 pixels | 1440 x 2560 pixels (Quad HD / 2K) |
| Dynamic AMOLED | Super AMOLED |
| 500 pixels per inch | 576 pixels per inch |
| No touch screen | Capacitive, Multi-touch |
| 8 | 9.9 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 2 (4 nm) chipset | Exynos 7 Octa 7420 chipset |
| processor | 64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processor |
| 8 GB RAM | 3 GB (1600 MHz) RAM |
| Adreno 740 GPU | Mali-T760 MP8 (650 MHz) GPU |
| 6.21 | 10.08 |
| 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 + 40.00 MP | 16.00 MP + 5.00 MP |
| f/1.70 aperture | f/1.90 aperture |
| 69.00mm focal length | 28.00mm focal length |
| 0.77 inches (1/1.3") sensor | 0.38 inches (1/2.6") sensor |
| -- | 3840 x 2160 (30 fps) (4K) video resolution |
| 12.43 | 10.01 |
| 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, HSUPA, UMTS, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 2550mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.8 | 4.56 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 4.1 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Galaxy S6 is a little bit better than the Galaxy S23 Ultra, having an 87.4 score against 81.5. Both of these phones use Android operating system, but the Galaxy S6 has older 5.0 version while Galaxy S23 Ultra has Android 13 version. Samsung Galaxy S6 features a very superior hardware performance than Galaxy S23 Ultra, because although it has less RAM, and they both have 8 cores, the Samsung Galaxy S6 also counts with an extra GPU and a 64-bit processing unit.
The Galaxy S6 counts with a much more vibrant display than Galaxy S23 Ultra, because although it has a bit worse 2560 x 1440 resolution and a way smaller display, it also counts with a little bit better screen density. The Samsung Galaxy S6 has as much memory capacity to store more games and applications as the Galaxy S23 Ultra, both of them have exactly the same 128 GB internal storage capacity.
The Galaxy S23 Ultra has a much longer battery performance than Samsung Galaxy S6, because it has 5000mAh of battery capacity. Galaxy S23 Ultra shoots greater photos and videos than Samsung Galaxy S6, because it has a lot larger sensor, a much better 200 mega pixels resolution back facing camera and a bigger camera aperture for better low-light photos and videos.
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