Compare phones
| Global Score | |
| 72.7 | 98.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 11 |
| 2018-06-29 | 2021-01-29 |
| 6.03 x 3.00 x 0.34 inches | 6.50 x 2.98 x 0.35 inches |
| 6.38 ounces | 8.04 ounces |
| 16 777 216 | Phantom black and Silver |
| -- | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 5.5 inches | 6.8 inches |
| 1280 x 720 pixels (HD) | 3200 x 1440 pixels |
| TFT | Dynamic AMOLED |
| 267 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.1 | 9.8 |
| Performance | |
| Samsung Exynos 7 Octa 7884 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 2 GB RAM | 12 GB RAM |
| Mali-T830 MP1 GPU | Adreno 660 GPU |
| 8.73 | 9.72 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 10.1 |
| Camera | |
| 13.00 MP + 13.00 MP | 108.00 MP + 40.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | 24.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.75 inches (1/1.33") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.13 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.3 | 10.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.28 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy S21 Ultra has a global score of 98.1, which is way better than Galaxy J7 Refine's 72.7 overall score. Samsung Galaxy S21 Ultra's design is notably newer, but incredibly heavier and just a little thicker than the Galaxy J7 Refine. These phones include Android OS (operating system), but Samsung Galaxy S21 Ultra has an older 11 version while Galaxy J7 Refine has Android 8.0 Oreo.
Galaxy S21 Ultra features a superior hardware performance than Galaxy J7 Refine, and although they both have a Octa-Core processing unit, the Galaxy S21 Ultra also has a greater amount of RAM memory. Galaxy S21 Ultra features a much more vibrant display than Samsung Galaxy J7 Refine, because it has a bigger display, much more pixels per inch of screen and a much higher resolution of 1440 x 3200 pixels.
The Samsung Galaxy S21 Ultra features a much better camera than Galaxy J7 Refine, because although it has a tinier aperture, it also counts with a much larger back-facing camera sensor taking lot better quality photos, a lot higher 7680x4320 video resolution and a lot more mega-pixels camera. The Galaxy S21 Ultra has slightly more storage to store more apps and games than Samsung Galaxy J7 Refine, because although it has no SD extension slot, it also counts with 128 GB internal storage.
Galaxy S21 Ultra counts with a way better battery performance than Galaxy J7 Refine, because it has 5000mAh of battery capacity against 3300mAh.
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