Ultra HD Ultra HD is more commonly referred to as 4K and gives you 4x the resolution of Full HD. All Toshiba 4K TV’s are certified Ultra HD Premium, meaning every pixel is fully coloured for a truly life-like picture.   High Dynamic Range (HDR) Toshiba High Dynamic Range enhances colour contrast, making blacks darker and whites brighter.   TRU Micro Dimming TRU Micro Dimming improves contrast, focusing on all the different regions of the image.   Dolby Audio Processing Dolby Audio Processing provides an enhanced experience whatever you’re watching, with richer, clearer and more powerful sound.   Better gaming for the family Toshiba Gaming Mode optimises the vibrancy of your graphics for a more exciting experience. Plus, it’s all set up for supporting HDR games too.         Display Screen Size 55" HDR Yes Resolution Ultra HD Smart TV Bluetooth Yes Smart TV Yes (Android TV)