On/Off, Volume, Menu
On/Off, Menu, Volume, Mute, Phone
On/Off, Menu, SmartImage
How we tested
To see how these 27-in. monitors compare, I set each up in my office for at least a week as my primary display. I used each of them to write emails, edit text, create spreadsheets, watch videos, nose around on the Web and work with interactive online programs.
After unpacking and putting each together, I spent some time measuring and investigating how each stand can tilt, raise or rotate the screen. Then I looked over the display's ports, speakers, microphone and webcam. I looked at the monitor's controls and tried out the device's features.
Then I connected each of the monitors to an iPad Mini (with an HDMI adapter), a Toshiba Radius P-55W notebook and a Nexus 7 phone (connecting via a Chromecast receiver). Each screen was able to work with each source; since the Philips display lacks an HDMI port, I used its DVI port with an HDMI-to-DVI adapter.
I next measured each screen's brightness with a Minolta LM-1 light meter using a white image in a darkened room. After measuring the light level at nine locations, I averaged them and converted the result to candelas per square meter. I then displayed a standard set of color bars and compared the three displays using an Orei HD104 four-way video distribution amplifier and a Toshiba Radius computer as the source.
To see how these monitors save power, I looked into their power conservation settings and software. I checked out how flexible the setting was for putting the display to sleep and measured how much electricity each monitor used with a Kill a Watt power meter.
Using the average U.S. price of 12 cents per kilowatt-hour of electricity, I estimated of how much it might cost to operate each monitor, based on the assumption that it was used for 10 hours a day over the work year (250 days) and was asleep for the rest of the time.
3 power-sipping monitors: Test results