K4 Note appears to be a more toned-down affair in terms of build quality and materials used. The phone comes with plastic build and metal is limited to the outer frame. The back panel is removable and swappable but the quality of plastic used is sadly on the sub-standard side. Although the surface of the K4 Note is smooth, it feels inferior over the K3 Note. The K3 Note felt so much better. To add to its woes, the back of the K4 Note is a smudge and fingerprint magnet. The metal frame however is the saving grace here. It adds a certain degree of sophistication to the phone and feels well put together. it fits well in hand and is easier to grip and operate even single-handedly. Note that it’s a 5.5-inch phone; it’s expected to be big. But it doesn’t feel that way.
The front of the K4 Note is dominated by a Corning Gorilla Glass 3 coated-display panel and a pair of front-firing stereo speakers aided with Dolby’s Atmos sound technology. This is the first time any company is offering this technology right-out-of-the-box on a speaker. The K3 Note supported Atmos, but you could use it only via connected headphones. Of course, you will need Dolby Atmos content to bring out the best of this technology but it’s an industry-first nevertheless. Also, the upper and lower ends - where the speakers sit - are slightly edged out to enhance audio output. The front panel also has touchscreen capacitive keys at the bottom.
The K4 Note has a 5.5-inch FullHD IPS display with a 1080 x 1920 pixels resolution and 441 ppi pixel density. The company was boasting about a’killer display’ prior to the launch.
The K4 Note is powered by a 1.3GHz octa-core Mediatek MT6753 processor coupled with 3GB RAM and 16GB of internal memory which is further expandable by up to 128GB via microSD card. In the limited time we spent with the device, we found it to be quite peppy and responsive. In terms of specifications, the K4 Note is just a minor processor upgrade over the K3 Note(which came with Mediatek MT6752), although it comes with an additional gig of RAM. The K4 Note runs Android 5.1 Lollipop-based Vibe UI and will be upgradable to Android 6.0 Marshmallow.
The phone sports a 13-megapixel camera on the rear with phase detection autofocus and dualLED flash. There’s also a 5-megapixel camera on the front. The rear camera - in our brief usage - was pretty decent at focusing while shutter speed was good. As for the pictures itself, they were a mixed bag with noise quite evident in low-lighting.
The K4 Note uses a 3, 300mAh battery which is bigger than the one on the K3 Note. It still does not support fast charging though.
The K4 Note wasn’t launched alone but came along with a pretty cool surprise. The phone also comes with something called TheatreMax technology that supports split-screen rendering on the screen. This can be made use of via a specially designed VR headset, aka ANT VR headset.
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