Samsung Galaxy Note 3
Samsung Galaxy Note 3Screenshot/Samsung official

Samsung Electronics is yet to announce the release date of its upcoming flagship device dubbed as Galaxy Note 4 but several reports have revealed every detail of the phablet, including its features. The device is expected to have several upgrades over its predecessor, Note 3.

Here are eight features expected to be seen in Samsung Galaxy Note 4:

1) Processor: The new device is expected to be powered by Quad Core Snapdragon 805 processor that clocks 2.5GHz. According to AnTuTu benchmark listings, Samsung may release two versions of Galaxy Note 4, one to be powered by Qualcomm Snapdragon 805 that features Krait 450 (300MHz-2457MHz) CPU and Adreno 420 GPU, and the other with Exynos 5433 8 Core processor that has ARM Mali-T760 GPU.

2) Display: The device may sport a 5.7-inch super Amoled display with a 2560x1440 resolution (500+ppi).

3) OS: It is reported that Galaxy Note 4 might runs on either Android 4.4.3 KitKat OS or Android 4.5 Lollypop. However, a source from Google has revealed that the company is releasing Android L along with a new device, believed to be Nexus 6, hinting that the new software may not be seen in Samsung's device. The fact is, Galaxy Note 4 is expected to be unveiled in September while Nexus may arrive in October at the earliest.

4) Memory: According to reports, Samsung's new device will come with a 3GB LPDDR3 RAM, which is the same with its predecessor, Note 3.

5) Camera: Samsung4Note website reported that Galaxy Note 4 may have a 16MP rear camera with ISOCELL technology, 4K video recording and a 2MP front camera with 1080p video recording and AnTuTu benchmark listings also hinted that the device might have a 16MP rear and a 3.6MP front snapper. However, G4Games (via ETNews) reported that camera pixel of the new device might be reduced to 12MP camera with OIS.

6) Design: The Korea Times has reported that Samsung will release two models of Galaxy Note 4 - one with a curved OLED display and the other with a flat OLED display. Executive vice president of Samsung's mobile business, Lee Younghee told Wall Street Journal that the company is thinking of a flexible display for the next generation device.

7) S-Pen Stylus: Weeks after reports emerged that Galaxy Note 4 might have S-Pen stylus with updated gestures and air command, a patent application filed by Samsung obtained by Galaxy Club has revealed that the S Pen might be powered by ultrasound technology.

8) Retina Scanner: It was speculated before the release of Samsung Galaxy S5 that it might come with an iris scanner but it was not seen when the device was unveiled. Now, the Samsung Exynos Twitter account has sparked off speculations that retina scanner could be introduced in the upcoming device by tweeting: "Security can be improved using features unique to us. That's what we envision. What would you use?"

The much-awaited device may hit the stores in the third quarter of this year. Android Geeks has reported citing an insider that the device would be unveiled on 3 September and the invitation to the Unpacked event would be sent out in mid-August. The Korea Times also claimed that the device would be unveiled at the the upcoming annual IFA trade fair in Berlin, Germany to be held between 5-10 September.