Samsung Galaxy Note 4

The Samsung Galaxy Note 4 is an Android phablet smartphone developed and produced by Samsung Electronics. It was unveiled during a Samsung press conference at IFA Berlin on 3 September 2014 and was released globally in October 2014 as successor to the Samsung Galaxy Note 3. Improvements include expanded stylus-related functionality, an optically stabilized rear camera, 1440p quad-HD filming on the front camera, significantly increased charging rate, revised multi-windowing, fingerprint unlocking, and BeiDou positioning. It is the last in the Galaxy Note series with an interchangeable battery, an IR blaster and infrared. It is also the last Note model to include microSD until the arrival of the Note 7/Note FE in 2016 and Note 8 in 2017. Its subsequent model, the Galaxy Note 5, was unveiled on 13 August 2015.

The Galaxy Note 4 features a 2560×1440 Quad HD (“WQHD”) Super AMOLED 5.7-inch display with 2.5D damage-resistant Gorilla Glass 4 and provides a pixel density of 515 ppi (pixels-per-inch).

The Note 4 came in two variants, one powered by a 2.7 GHz quad-core Qualcomm Snapdragon 805 chipset with Adreno 420 GPU, the other powered by Samsung's ARMv8-A Exynos 7 Octa SoC with two clusters of four cores; four Cortex-A57 cores at 1.9 GHz, and four Cortex-A53 cores at 1.3 GHz, which is the same processor cluster sold for the Samsung Galaxy Note 3 in markets that mostly use or only have 3G (such as HSUPA and HSPA), and/or '2G', such as unaltered GSM and CDMA networks, similar to how the Galaxy Note 3 is sold. The phone has an aluminum frame with a plastic, faux leather back cover.

Both devices that use 4G, LTE/LTE-A and Hybrid 4G-LTE Networks were only sold in Canada, Australia, the U.S., the United Kingdom (for some carriers), Sweden, Norway, Denmark, and South Korea, which have widespread 4G LTE Markets, or are solely 4G/LTE/LTE-A dependant such as Canada and Denmark, which did not use any 3G or older networks, except for HSUPA (Used as a fall back network should the signal strength be weak due to being underground or in the middle of a building), as well as HSPA+, which is a 3G network, though considered by some to be the Original 4G. The GPU in charge in the Exynos chipset is the Mali-T760.

The Chinese variant utilizes the TD-LTE and TD-SCDMA Plus Network.

Both variants came with 3 GB of LPDDR3 RAM and 32 GB of internal memory that can be expanded using MicroSD-XC cards.

The memory card slot has been relocated to allow hot swapping without physical blockage by the battery.

The Note 4's back-cover has a strong resemblance to the Note 3, with a faux leather texture (although without the simulated stitching). It has a new aluminum frame design, bearing resemblance from the Galaxy Alpha, but lacks an IP67 certification (water and dust resistance), which was present in Samsung's other flagship, the Galaxy S5, released half a year earlier.