One other big improvement is with the camera. When it comes to megapixels it's gone from 13MP to 16MP but the innovations don't lie in the meaningless megapixel chase but also in the front camera's f stop (megapixel wise this is 3.7MP), which now clocks in at f1.9.
In old money that means that the camera now lets in 60% more light and makes for better quality images.
This also comes with the added bonus of optical image stabilisation.



Samsung Galaxy Note 4 review
You can also use the camera in unison with the S Pen. A new feature called Snap Note allows you to take a picture of a piece of paper (or whiteboard) and change what's in the picture. Although I didn't try this out myself, the demo I was shown consisted of a piece of paper with a number of images and text on it. A picture was taken of this, put through Snap Note and then the colour and size of the images could be changed, text could be deleted and the size of objects could be increased. It's a niche new feature but one that could come in useful in a creative environment.



Samsung Galaxy Note 4 review
The way you can take pictures has changed too. With the whole world going selfie mad, it was inevitable that Samsung (and plenty more manufacturers) would want to cash in on this. It has done it twofold with the Samsung Galaxy Note 4. First there is a selfie panorama mode. Much like the panorama mode seen on the Note 3, where a picture is stitched from images taken from a pan of a scene, the same thing happens in this mode - except it is in portrait and uses the front-facing camera. Samsung is quoting 120 degrees spatial awareness and after having a go with it I am not going to argue about such a figure.



Samsung Galaxy Note 4 review
Samsung has also recognised that if you want to take a selfie, then it is a little difficult to get your thumb around to the front of the device to take the picture. So it has utilised its heartrate monitor functionality as a back trigger button. One tap on this and your selfie is preserved. It's not a feature I will be using much but given the sudden popularity of taking pictures of your own face in different places it will be a feature that is used a lot.

Performance and battery

Samsung's improved the Note 4's mic performance too. Voice recording is something that won't be used for all but the Note is a device built for business and this feature will be welcomed.
There are now three mics on the handset (two at the bottom and one on the top), these are used well when recording voices.
In a crowded room you can zoom into one voice and cut the rest out. This journalist is already salivating at the prospect of interviewing someone and playing back the interview without hearing his own voice. It's a clever feature but one that may be overlooked by many.



Samsung Galaxy Note 4 review
As for the speed of the device, it was fast. I managed to zip between apps and internet with no lag at all and it didn't break a sweat when loading up a movie. But that's exactly what you'd expect with a 2.7GHz quad-core Snapdragon 805 processor and 3GB of RAM under the hood.The Samsung Galaxy Note 4 is a premium-looking device that will be familiar to anyone who has used a Note. Don't expect huge changes here - you still get a ribbed plastic back, although it's more in keeping with the S5's style.

Samsung Galaxy Note 4 review
That was the phone that propelled Samsung into the AAA league of smartphone manufacturers and the Note 4 on first hands on feels like it will be a worthy addition to the Note range.When it comes to the all-important battery, Samsung has given the Note 4 the same battery as the Note 3 (3200mAh) but it has improved charging times. You can now charge 50% of the battery in just 30 minutes and it has the same ultra-power saving technology that was built into the S5.

Samsung Galaxy Note 4 review

Early verdict

It is big and it is clever: the Galaxy Note 4 looks to be Samsung's best Note yet, toning down the gimmick and adding real innovation to what is becoming one of the best phone ranges around.
The biggest relief is that the software changes are innovations rather than annoying bloatware. Samsung does have a habit of adding gimmickry to its handsets but the big changes here are actually beneficial to how you use the Note.


source:- Hands on: Samsung Galaxy Note 4 review