Compare phones
| Global Score | |
| 91.8 | 76.1 |
| Basic Information | |
| Samsung | Samsung |
| Android 11 | Android 7.0 Nougat |
| 2021-01-29 | 2017-06-20 |
| 5.97 x 2.80 x 0.31 inches | 6.17 x 3.10 x 0.32 inches |
| 6.03 ounces | 6.31 ounces |
| Gray, Phantom pink, Violet and White | 16 777 216 |
| Aluminum and Plastic | Aluminum |
| Scratch-Resistant Glass | -- |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 5.7 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Dynamic AMOLED | IPS LCD |
| 424 pixels per inch | 386 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | MediaTek Helio P20 MT6757 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | ARM Cortex-A53, 64-bit, 16 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Mali-T880 MP2 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 8.88 |
| Camera | |
| 12.00 MP + 10.00 MP | 13.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 9.02 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G) and HSPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.1 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3300mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| GPS | GPS |
| 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
Galaxy S21 has a general score of 91.8, which is much better than Galaxy J7 Max's score of 76.1. Galaxy S21 is a way newer phone, and it is also just a little bit thinner and a bit lighter than the Galaxy J7 Max. These devices use Android OS (operating system), but the Galaxy S21 has older 11 version while Galaxy J7 Max has Android 7.0 Nougat.
Samsung Galaxy S21 features just a little better processing power than Galaxy J7 Max, and although they both have a Octa-Core processing unit, the Samsung Galaxy S21 also has more RAM memory. Galaxy S21 has a better display than Galaxy J7 Max, because it has a bit greater pixel density, a little bit higher resolution of 1080 x 2400 pixels and a bit bigger display.
Galaxy S21 features a bigger storage for games and applications than Samsung Galaxy J7 Max, because although it has no SD memory card expansion slot, it also counts with 128 GB internal memory. Samsung Galaxy S21 captures much clearer pictures and videos than Samsung Galaxy J7 Max, because although it has a camera in the back with lesser MP resolution and a tinier aperture which is not nice for low-light captures and videos, it also counts with a way higher video quality.
The Galaxy S21 counts with longer battery life than Galaxy J7 Max, because it has 4000mAh of battery capacity against 3300mAh.
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