Any TV with a resolution higher than 1080P is known as ultra HD TV ( 4K TV is also an ultra HD TV with a resolution of 3840X2160) whereas smart TV is the one which can be connected to the internet through WiFi/ethernet port and which has popular applications like prime video or YouTube in built.

1.3 GHz Quad Core Processor makes the Samsung SMART TV three times faster than conventional TV allowing smoother multitasking, faster web browsing and quicker boot-up. (Samsung TV with Quad Core Processor)

A 4K TV comes equipped with this same resolution - roughly four times the resolution of the previous 1080 standard - whereas UHD offers a display resolution of 3,840 x 2,160. While this is slightly short of "true" 4K, UHD resolution is often rounded-up and referred to as 4K for the sake of simplicity.

Ultra High Definition Ultra High Definition (UHD) is the resolution 3840x2160P. What this means is that there are more pixels per inch (PPI) in a UHD TV. This gives a higher resolution on the TV. UHD is used on larger TVs so you can sit closer to the TV and still enjoy a crisp, clear picture.

The biggest value of a smart TV is the ability to enjoy content beyond regular TV channels. A smart TV provides your favourite VOD (video on demand) services such as Netflix, Amazon Prime Video, Disney+, and YouTube.

Roku TVs are more affordable and are great for those who want to watch streaming content without the bells and whistles of a Smart TV. However, they require a separate subscription for most services and have limited app selections.

Each core in a quad-core processor can run its own set of instructions at the same time as the other three cores run theirs. In this way, the processor can support multithreading, a form of parallelization in which multiple threads are processed simultaneously by different cores.

Each CPU caters to a different use case. In general, quad-core processors offer better performance and multitasking capabilities because they have twice as many processing units as dual-core processors. More cores means they can handle more tasks simultaneously and execute instructions faster.

TVs with Ultra HD resolution display 4 times more pixels than Full HD images. 4K has a resolution of 4,096 × 2,160 (8.8 megapixels), a little higher than UHD. A better resolution TV (eg UHD vs FHD) displays a greater number of pixels and allows more details to be displayed on an image of the same size.

If you have that kind of budget and are also looking to go upwards, 4k UHD is the way to go. The picture quality is crisp, and you wouldn't regret spending your money on the TV. If, however, you are looking for something more affordable and economical, LED TVs with 1080p should be the way to go.

UHD is the official name for a display resolution of 3840x2160p and is four times the resolution of HD, which is currently 1920x1080p. You may recognize UHD from TV adverts. This is because many modern television sets now come with UHD capabilities, allowing you to stream and consume content in super high resolution.

Ultra HD also known as UHD is increasingly popular among televisions, media players and video content. The image resolution is 3840 x 2160 (8.3 megapixels). TVs with Ultra HD resolution display 4 times more pixels than Full HD images. 4K has a resolution of 4,096 × 2,160 (8.8 megapixels), a little higher than UHD.

Smart TVs are very much like smartphones; they stream entertainment straight to your TV via an internet connection. This means that you can watch all the latest films, box sets and play games on your smart TV without the need for an aerial, cable or separate streaming device.

• Mi 32 inches 5A Series HD Ready Smart Android LED TV.
• Redmi 32 inches Android 11 Series HD Ready Smart LED TV.
• OnePlus 43 inches Y Series Full HD Smart Android LED TV.
• Samsung 43 Inches Full HD LED Smart TV.
• Samsung 55 inches Crystal 4K Series Ultra HD Smart LED TV.

The best smart TV brands in India are:

• Sony Bravia 55-inch XR Series 4K UHD Smart OLED Google TV.
• Sony Bravia 65-inches 4K UHD Smart TV.
• Vu 65-inch The Masterpiece Glo Series 4K UHD Smart Android QLED TV.
• Acer 65-inch I Series 4K UHD Android Smart TV.
• LG 43-inch 4K UHD Smart LED TV.

Smart TV Buying Guide: Top Picks