HDR is in some ways more significant than 4k in that it expands the color range of a video stream from 8-bits to 10-bits, allowing more contrast, luminance, and details in shadow and highlight areas. HDR on your TV can be tricky to configure, but the rewards are lifelike images not possible with non-HDR sources. 4k TVs that support HDR are generally more expensive than 4k TVs, but here are several 2017 model 4k HDR TVs priced under $500.
4k HDR TVs (2017 Models) Under $500
TCL 49S405 49-inch 4K Ultra HD Roku Smart LED TV (2017 Model)
Price: $349.99 (MSRP: $479.99) More Details
LG 43UJ6300 43″ UHD 4K HDR Smart LED TV (2017 Model)
Price: $369 (MSRP: $549) More Details
TCL 55S405 55-Inch 4K Ultra HD Roku Smart LED TV (2017 Model)
Price: $399.99 (MSRP: $599) More Details
LG 49UJ6300 49-Inch 4K Ultra HD Smart LED TV (2017 Model)
Price: $428 (MSRP: $699) More Details
Philips 55PFL6902/F7 55 inch Smart 4K HDR Dolby Vision (2017 Model)
Price: 443.98 (MSRP: $899) More Details
Sharp 55″ Class LC-55P6050U 4K HDR Smart TV (2017 Model)
Price: $475.12 (MSRP: $699) More Details
Please note some of these 4k HDR TVs may be offered through third party vendors on Amazon. And, prices may change at any time depending on supply and demand.