The Galaxy Note 4 still has a lot of fans inspite of being two years old. Long time fans of the Galaxy Note series didn't upgrade to the Galaxy Note 5 when it came out last year because it lacked a microSD card slot and a removable battery (European consumers, of course, didn't even have the option to). However, Samsung has brought back the microSD card slot with the Galaxy Note 7.
The Galaxy Note 7 not only improves S Pen features, but it also comes with a lot of hardware upgrades. It comes with the newer Exynos 8890 (and Snapdragon 820 in some markets) processor, higher RAM and storage, and a better front-facing camera and a rear camera with low-light imaging miles ahead of the Note 4's. The software is newer and faster and supports themes as well.
There's no removable battery in the Galaxy Note 7, but its sealed battery has the highest capacity in all the Galaxy Note series smartphones. Moreover, it is compatible with wireless fast charging. The touch-based fingerprint sensor is quicker and more reliable, and also supports Samsung Pay.
You can have a look at the comparison table below to know all the areas where the Galaxy Note 7 improves over the Galaxy Note 4 in terms of specifications. All in all, the Galaxy Note 7 is a huge upgrade compared to the two-year-old Galaxy Note 4, and if you've been eyeing to upgrade from the latter, this is the time.
| Galaxy Note 4 | Galaxy Note 7 | |
| Display | 5.7-inch Quad HD Super AMOLED with Corning Gorilla Glass 4 protection | 5.7-inch Quad HD Super AMOLED curved display with Corning Gorilla Glass 5 protection |
| S Pen | Yes, 2,048 levels of pressure sensitiveness | Yes, 4,096 levels of pressure sensitiveness |
| Processor | 1.9GHz octa-core Samsung Exynos 5433/2.7GHz quad-core Snapdragon 805 | Samsung Exynos 8890 2.3GHz/Qualcomm Snapdragon 820 2.15GHz |
| RAM | 3GB | 4GB |
| Rear Camera | 16-megapixel, 1/2.6-inch, f/2.2, contrast-detection autofocus, OIS, 1.12 micron pixels, 4K video recording | 12-megapixel, 1/2.6-inch, f/1.7, dual-pixel autofocus, phase-detection autofocus, OIS, 1.4 micron pixels, 4K video recording |
| Front camera | 3.7-megapixel, f/1.9 aperture, QHD video recording, HDR | 5-megapixel, f/1.7 aperture, QHD video recording |
| Storage | 32GB internal, expandable via microSD | 64GB internal, microSD slot (up to 256GB) |
| Software | Android 4.4.4 KitKat (upgradeable to Android 6.0.1 Marshmallow) | Android 6.0.1 Marshmallow |
| Battery | 3,220 mAh, fast charging, removable | 3,500 mAh, fast wired and wireless charging, non-removable |
| Other features | Fingerprint sensor, heart rate sensor, IR blaster, SpO2 sensor, UV sensor | Samsung Pay, fingerprint sensor, water-resistance, USB Type-C port, iris scanner, heart rate sensor |
