New Delhi: Lots of handset makers are adding unique features to make their handsets stand out. For instance, the newly announced Samsung Galaxy Round and LG G Flex come with curved display. Here is a list that offers something interesting: 41MP camera Nokia's Lumia 1020 is the smartphone comes with highest resolution camera in the world – 41MP. This is the highest pixel count for camera in any smartphone in the world today. The Lumia 1020 is fitted with a 41MP camera that utilizes a back-sided illuminated (BSI) sensor that has optical image stabilization (OIS). The lens is the aperture equivalent to a 26 mm lens with a fixed aperture of f/2.2. The camera also has a mechanical shutter which will allow for sharper images and help the optical stabilization reduce motion blur. The Lumia 1020's Zeiss camera lens is composed of six elements with a lens cover and outer protective element. Instead of a LED light to double as a flash and auto-focus assist light, the Lumia 1020 has a Xenon flash and a secondary LED light for video lighting and AF assist.Blow-to-Unlock Micromax Canvas 4 is the world's first smartphone to have Blow-to-Unlock feature. You just need to blow on the handset to unlock it. This feature is also present in its successor, Canvas Magnus. 2K screen resolution Chinese manufacturer Vivo has launched the world's first smartphone with 2K (2560x1440p) resolution, named Xplay 3S. This phone's screen has more pixels than the current crop of 1080p displays, making text, videos, images etc clearer and sharper. The new Vivo Xplay 3S's 6-inch display has pixel density of 490ppi, which is higher than the 469ppi (the highest pixel density before this launch) of HTC One. Self-healing back LG G Flex is the only handset in the world to have a self-healing back. If the phone is scratched or dropped, all scuff marks get repaired on their own. Biggest screen The smartphone with the biggest touchscreen in the world is SmartNamo Saffron Two, a phone dedicated to Gujarat chief minister Narendra Modi. The device has a 6.5-inch screen with 1920x1080p resolution and 338ppi pixel density. 64-bit processor Apple's iPhone 5S comes with a 64-bit chipset under the hood. The benefits for the average user will initially be minimal and mainly involve keeping iOS 7 up to speed, but in the future, a 64-bit chip will also help bring the operating systems on Apple's tablets and mobiles closer to the PC experience. Thinnest body Vivo X3 is just 5.75mm thick and has a 5-inch display.Quick Capture Moto X comes with a feature called Quick Capture, which enables you to open the camera app with just two quick flicks of the wrist. It gets you from sleep to shooting in a mere two seconds, all with a simple flick of the wrist. To launch the camera app, hold the phone and rotate your wrist like you're turning a screwdriver or a doorknob. Smartphone transforming into tablet Asus PadFone Infinity (Qualcomm Snapdragon 800) docks with the PadStation accessory to transform into a tablet. Edge-to-edge display The LG G2 is touted to come with edge-to-edge and bezel free display. LG says it was made possible by placing the device's power and volume buttons on the back side.Water-proof phoneSony Xperia Z1 sports a tempered-glass design and is water-proof to boot.