The LG 55UH668 has a screen size of 55", but the LG OLED55B6 is only a unknown" TV (55" smaller).
The display diagonal of a TV is the most common measure of screen size and is the distance from the top left to the bottom right of the visible part of a TV screen excluding any frame or border. One of the most important considerations when choosing the right screen size for your TV is the typical distance from which you will be viewing the screen.
A good rule of thumb is to multiply the display diagonal by 2.5 to determine the viewing distance. So a 40 inch TV is best viewed from 100 inches away, which is equivalent to 8.3 feet or 2.54m.
For home cinema setups and a truly immersive experience this ratio can be reduced to 1.2. This will give a screen size that fills 40 degrees of the viewer's field of vision. So if you viewing from a distance of 6ft (72 inches) you would need a TV display diagonal of 60 inches.
TVs with a bigger display diagonal allow you to make the most of HD content and are great for watching movies.
100Hz faster refresh rate
The LG 55UH668 has a refresh rate of 100Hz, whereas the LG OLED55B6 is only a unknownHz refresh rate TV (100Hz slower).
The refresh rate is also known as the high frequency rate and it affects how smooth motion on the screen appears. The high frequency rate is the number of times that the image on the screen is refreshed per second. A TV with a high frequency rate of 30Hz refreshes the image on the screen once every 30 times every second. A TV with a high frequency rate of 60Hz would refresh the image on the screen 60 times every second which means that action scenes would appear smoother.
The high frequency rate is also known as the refresh rate and it affects how smooth motion on the screen appears. Action will appear smoother on TVs with a higher frequency rate.
Bigger picture mastering index (PMI)
The LG 55UH668 is a 1,200 TV. That's 1,200 bigger than the LG OLED55B6 (unknown).
Vastly higher RMS rated power
The LG 55UH668 is a 20W RMS rated power TV. That's 20W higher than the LG OLED55B6 (unknownW).
RMS rated power stands for Root Mean Square rated power and it is typically used to measure the power output of the audio element of the TV.
A higher RMS rated power means that the audio system on the TV is more powerful and will be able to play the audio at higher volumes. A higher RMS power may also result in better quality audio at normal volume levels.
Cheaper by £1,100
The LG 55UH668 is £1,099.99 cheaper than the LG OLED55B6.
2 Reasons For
Available from 41 shops
A greater number of retailers increases the chances of this TV remaining in stock and also increases the price competition amongst retailers for the product.
The LG OLED55B6 is a more popular choice amongst buyers. It ranks No. 12091 by sales volume in our TVs, however the LG 55UH668 ranks No. 39379.
3 Reasons Against
The LG 55UH668 is only stocked by 4 stores, but the LG OLED55B6 is stocked by 45 shops.
The fewer the number of shops that stock the product, the lower the competition amongst shops to keep prices low.
Older by five months
The LG 55UH668 is five months older than the LG OLED55B6.
The LG 55UH668 is a less popular choice amongst buyers. It ranks No. 39379 by number of sales in our TVs, whereas the LG OLED55B6 ranks No. 12091.
1 Reason Against
£1,100 more expensive
The LG OLED55B6 is more expensive than the LG 55UH668 by £1,099.99.