The eSaver app is how you tell the monitor when to go to sleep, based on the status of your PC. For example, I set it to turn off one minute after the computer is shut down or 10 minutes after the computer goes to sleep or the screen saver comes on. Neither of the other monitors reviewed here can match this specificity.
The AOC display makes do with two 2.5-watt speakers; there is no webcam, microphone or USB hub. The speakers are on the bottom edge of the display, so that they sound thin and don't get nearly as loud as the Dell's sound system.
Its assortment of ports (one DVI, one HDMI and one VGA) lacks the Dell's second HDMI port and the Philips's DisplayPort input. But the AOC ports are all horizontally oriented, while the other two displays have vertical ports that are more awkward to plug in.
I did appreciate the addition of an analog audio input, which I used to connect to my phone's output to listen to music while working. The display also has a headphone jack in the back.
The AOC stand was the easiest of the three to set up, because the base snaps into the monitor arm. Like the others, the monitor has standard VESA mounting holes on the back for screwing it into a third-party stand. However, the only way to adjust the stand is to tilt it up to 3 degrees forward or up to 17 degrees back. It can't go up and down, swivel or rotate.
With a three-year warranty, the AOC is available at prices starting under $200, the least expensive of the three. If you just need a basic monitor that can offer some savings in electric bills, this is a good choice, but its lack of a webcam among other features may limit its usefulness.
Dell UltraSharp 27 - UZ2715H
The Dell UltraSharp 27 may be the most expensive of the three displays reviewed here, but it delivers the best mix of screen and multimedia accessories.
The gray and black monitor takes up the least desktop space of the three, something to consider if you're part of a company that is tight on cubicle space. Built around an IPS panel that offers 1920 x 1080 resolution, the Dell uses hardened anti-glare glass.
There are controls up front for turning the display on and off, using the on-screen menu, and turning the volume up or down; there's also a handy mute button. I was surprised and impressed by a button with a telephone receiver icon that can initiate or answer a phone call over Microsoft's Lync VoIP system. (To get this to work, you'll need to link the screen with a PC via a USB cable.)
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