Compare phones
| Global Score | |
| 74.6 | 76 |
| Basic Information | |
| Samsung | OnePlus |
| Android 8.0 Oreo | Android 11 |
| -- | 2021-04-02 |
| 6.04 x 3.04 x 0.32 inches | 6.30 x 2.92 x 0.34 inches |
| 6.14 ounces | 6.77 ounces |
| 16 777 216 | Arctic Sky, Astral Black and Winter Mist |
| Plastic | Aluminum and Glass (Corning Gorilla Glass) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 700.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 267 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.2 |
| 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 |
| 4 GB RAM | 8 GB RAM |
| ARM Mali-G71 GPU | Adreno 660 GPU |
| 8.82 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 8.88 | 10.1 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 16.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm focal length | 23.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.71 inches (1/1.4") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (30 fps) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 9.02 | 12.65 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM |
| 6.1 | 10.7 |
| Battery Life | |
| 3000mAh Battery | 4500mAh Battery |
| Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
OnePlus 9 has an overall score of 76, which is just a bit better than Galaxy J7 Duo's overall score of 74.6. Despite being the best device in this comparison, OnePlus 9's body is just a little thicker and just a bit heavier than Galaxy J7 Duo. Both devices in this review come with Android operating system, but the OnePlus 9 has 11 version while Galaxy J7 Duo has Android 8.0 Oreo version.
The OnePlus 9 counts with a little better hardware performance than Galaxy J7 Duo, and although they both have 8 CPU cores, the OnePlus 9 also has 4 GB more RAM memory. The OnePlus 9 features a better display than Samsung Galaxy J7 Duo, because it has a bigger display, a lot better 1080 x 2400 pixels resolution and a way greater pixel amount per display inch.
OnePlus 9 features a bigger storage to install applications and games than Galaxy J7 Duo, because although it has no SD memory slot, it also counts with 128 GB internal storage. The OnePlus 9 has a superior battery performance than Samsung Galaxy J7 Duo, because it has a 4500mAh battery size. The OnePlus 9 captures much clearer pictures and videos than Samsung Galaxy J7 Duo, because it has a bigger diafragm aperture to capture better low-light captures and video, a lot larger back-facing camera sensor which offers a much better photo and video quality, a much higher 7680x4320 video resolution and a camera with much more megapixels.
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