When comparing BenQ BL2711U vs Planar Helium PCT2785, the Slant community recommends Planar Helium PCT2785 for most people. In the question“What are the best monitors?” Planar Helium PCT2785 is ranked 30th while BenQ BL2711U is ranked 49th. The most important reason people chose Planar Helium PCT2785 is:
The black levels are respectively low at 0.16cd/m², which helps the contrast ratio achieve 1100:1 which is much lower than the advertised 5000:1, but still quite good.
Specs
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Pros
Pro Cover all of sRGB color gamut
The monitor covers all of sRGB space and with some calibration is capable of representing the colors accurately.
Pro Good contrast
Pro Smooth surface
Among the least grainy matte surfaces available for UHD monitors.
Pro Low input lag
Complete input lag time (signal delay and pixel response time) is 6.85ms or under ½ of a frame.
Pro Can automatically shut down when you're away
The monitor has a proximity sensor that allows it to be automatically set to standby mode once you're away from the monitor for more than 40 seconds.
Pro Can auto-adjust brightness throughout the day
Can be set to automatically adjust brightness due to the built in ambient light sensor.
Pro Decent black levels, good contrast ratio
The black levels are respectively low at 0.16cd/m², which helps the contrast ratio achieve 1100:1 which is much lower than the advertised 5000:1, but still quite good.
Pro Pretty fast response times make the system feel quick
The response time is 12ms, which isn't lightning fast, but it's still quick enough to make the system feel more responsive than cheaper monitors. While not fast enough for high-level gaming, this monitor won't make your system feel slow or unresponsive.
Pro 'Massive tablet' design is unique, and versitile
It really does look like a massive tablet with a kickstand - but that's not a bad thing. There's no stand visible, leaving the front looking very clean. The stand can angle anywhere from 15-70 degrees which allows for flexible use, or it can be folded in and used flat on the desk or even mounted using the VESA mounting holes.
Pro Built-in speakers, webcam, and mic
This monitor has many peripherals built-in, and unless you use them heavily they will do the job just fine. Unless you feel the need for dedicated hardware, the built-in stereo speakers work well enough, and the webcam and mic are acceptable quality for occasional recreational use (for business calls or other uses where quality is important, you'll want to upgrade to dedicated hardware).
Cons
Con A maximum refresh rate of 60Hz can be a concern for some
A 60Hz monitor, while sufficient for most people in most cases, can still cause issues with fast-moving objects on screen. It's especially important with things like gaming where the ability to react to events happening on the screen quickly is important.
Con AHVA glow
AHVA glow is the light on the sides or corners of the screen that can reduce some of the peripheral detail.
Con Poor dynamic contrast implementation
Dynamic Contrast is an optional feature meant to increase or decrease the back-lighting depending on scene that is displayed in order to get higher dynamic range. Unfortunately, the implementation tends to slightly overshoot on highs regardless of the settings used.
Con Some color temperature uniformity issues
According to Spyder5Elite tests performed by PC Monitor, BL2711U has color temperature issues that can be seen with the naked. A DeltaE deviation of over 3 can be easily noticed and there are deviation of up to 3.8.
Con Disappointing color accuracy
The MVA panel (multi-domain vertical alignment: in-between of TN and IPS technologies) doesn't reproduce colors very accurately. It scores just 82% of the sRGB color gamut, while other panels offer high 80s and even above 90%. This display's weakest points are with the green and cyan shades, while reds and blues appeared just fine.
Con Dim display
The display doesn't get very bright - at just 172cd/m² this panel is very dim. Many monitors can achieve 300cd/m² or higher brightnesses.
Con Takes much more power than similar monitors
Without using the ECO mode, this monitor requires about 50 watts to power it. This is double than other monitors. There are different levels of ECO modes, however these dim the display and barely get down to the power level of other monitors when they are all enabled.