We used the following calibration settings to review the 65 inch Hisense U6GR (65U6GR) and we expect our results to also apply for the 55 inch model (55U6GR). These settings should apply to most types of content, except for gaming or use as a PC monitor, which require a few additional changes listed below.
General Settings
Eco Settings
One of the first things we did was disable all of the Auto Power Savings options, as we don't want the TV to turn off during testing.
SDR
For SDR content, there are five preset picture modes. We recommend choosing the 'Movie' Picture Mode, as it's the most accurate one out of the box and allows for the most customization. From the Fine Tune Picture menu, we recommend setting Contrast to '90', Brightness to '50', and Sharpness to '0'. We also set Color to '45', and Tint (G/R) to '0'. Finally, we chose the 'Warm' Color Temperature.
Image Enhancements
The Local Dimming setting controls the U6GR's local dimming feature. We recommend the 'High' setting. As we aim for an image that's as close as possible to the content creator's intent, we disable most image processing options, including Dynamic Contrast. You should adjust these to your personal preference, though.
To make the image brighter in SDR, you should first select the TV Brightness range to one of the five preset options (we recommended 'Brighter') and then adjust the Backlight in the Fine Tune Picture menu depending on your specific viewing conditions. Changing this setting does not have any impact on the overall picture quality. The Brightness setting is a picture adjustment setting, and we don't recommend adjusting it.
HDR
HDR is automatically enabled for the native apps. When you start playing HDR content, a small HDR icon appears next to the picture mode on the quick settings menu. Once you start playing HDR content, some of the settings change automatically, including the Backlight. We recommend leaving these settings to their default settings in HDR and using the 'Dark HDR' Picture Mode.
If you start watching HDR content and it doesn't automatically switch to HDR, you may have to set HDMI Mode to 'Standard' from the HDMI menu for the input you are using. This allows the TV to reach its maximum bandwidth.
Dolby Vision
The Hisense U6GR supports Dolby Vision from native apps and with most external devices. As with normal HDR content, when you start playing Dolby Vision content, some settings change automatically. We recommend leaving these settings as-is, don't copy our SDR settings over. You can also disable a setting that displays the Dolby Vision logo when it starts playing.
Motion Settings
Although we disable most motion enhancing functions for most of our tests, you should adjust these to whatever looks best for you. Some settings may need to be adjusted depending on the specific content you're watching.
Black Frame Insertion
The Hisense U6GR has a backlight strobing feature, commonly known as black frame insertion, called LED Motion Clarity. Enabling it results in less persistence blur, but it causes duplications in motion.
Motion Interpolation
The Hisense U6GR doesn't have a motion interpolation feature.
Judder
The Hisense U6GR automatically removes 24p judder from native apps and native 24p sources, and no settings are needed for it. However, it can't remove it from 60p/i sources.
Gaming Settings
From the base SDR and HDR settings, simply enable the Game Mode setting, which can be enabled with whichever Picture Mode. You can also enable Auto Low Latency Mode, which allows the TV to automatically switch into Game Mode when you launch a game from a compatible device. For signals that require full bandwidth, you have to set the HDMI Mode to ' Standard'.
Variable Refresh Rate
The Hisense U6GR supports variable refresh rate to reduce screen tearing when gaming. To use VRR, enable Variable Refresh Rate.
PC Gaming
The Hisense U6GR automatically switches the TV into PC Mode when it detects that a PC is connected. This allows it to display chroma 4:4:4.
Audio Settings
eARC/ARC
The Hisense U6GR can pass uncompressed audio to a compatible receiver through a single HDMI connection with its eARC support but only supports Dolby Atmos and not DTS:X formats. Set Audio Output and Digital Output Format to 'Auto,' and you have to plug your receiver into HDMI 1.
White Balance Settings
Some settings are only available via the Roku app, which you can download through the app stores on Android and iOS. On the Picture Settings page, there are a few settings that you can adjust from both the TV and the app, like the Picture Mode and Color Temperature, but Gamma and Noise Reduction are only available through the app. Gamma affects the brightness of images, and we normally set it at '2.2', but if you find it too dark, set it to a lower number, and if it's too bright, set it higher. Noise Reduction aims to improve the gradients at the cost of losing fine details, but we've noticed it doesn't do much on Roku TVs. You also have to calibrate the TV through the app by setting Color Space to 'Custom' and adjusting the 11 Pt WB values.
The following are the results of the white balance and colorspace calibration on our unit. They're provided for reference and shouldn't be copied as the calibration values vary per individual unit even for the same model and same size as the TV we reviewed due to manufacturing tolerances. If you want to try them, you'll need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.
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