Which is better for gaming?

The Acer. Its 100Hz refresh rate, FreeSync and faster response reduce tearing and motion blur. The Dell's 60Hz panel and 8 ms response are fine for casual play but feel slower in fast games.

Which is better for office work?

The Dell. Height adjustment, swivel and pivot let you set proper posture, and the USB hub and DisplayPort simplify a docking setup. The Acer only tilts.

Which has better color?

The Dell lists 99% sRGB coverage, which matters for photo and design work. Acer does not publish sRGB coverage for this model, so the Dell is the safer pick for color-accurate tasks.

Is the Dell worth stepping up to over the Acer?

Yes if ergonomics, ports and color accuracy matter more than motion smoothness. If you mainly game or watch video, the Acer's higher refresh rate is the bigger gain.

Do both mount on a monitor arm?

Yes. Both use a 100 x 100 mm VESA pattern, so either works on an arm or wall mount. The Dell's own stand is more adjustable before you add one.

Which is easier on the eyes for long sessions?

The Dell has ComfortView Plus, an always-on low blue light filter that keeps color accuracy. The Acer relies on standard low blue light modes you switch on manually.

Acer EK220Q E3bi Monitor vs Dell P2222H Monitor

Buy the Acer EK220Q E3bi if you want smoother motion and a faster panel for games, video and everyday scrolling. Buy the Dell P2222H if you need an ergonomic desk monitor for work, with height adjustment, DisplayPort and a USB hub. The Acer wins on refresh rate and response time; the Dell wins on stand, ports and color coverage. Owners of both rate the IPS picture well, but the Dell's 60Hz panel and 8ms response feel slower in fast motion.

Choose the Acer EK220Q E3bi if you want a 100Hz FreeSync panel for gaming, video and smooth scrolling on a simple tilt stand.
Choose the Dell P2222H if you need height adjustment, DisplayPort, a four-port USB hub and 99% sRGB for office and creative work.

Prices

Acer EK220Q E3bi Monitor: $50.00 at eBay (last seen Nov 9)
Dell P2222H Monitor: $25.20 at eBay (checked today)
Difference: the Dell P2222H Monitor is $24.80 cheaper than the Acer EK220Q E3bi Monitor at the latest prices (Nov 9 and Nov 10)

	Acer EK220Q E3bi Monitor	Dell P2222H Monitor
Refresh rate	100 Hz	60 Hz
Response time	5 ms (marketed as 1 ms VRB)	8 ms
Adaptive sync	AMD FreeSync	None listed
Stand ergonomics	Tilt only, -5 to 20 degrees	Height adjustable up to 15 cm, plus tilt, swivel and pivot
Ports	1x HDMI, 1x VGA	1x HDMI, 1x DisplayPort 1.2, 4x USB downstream
Color coverage	Not specified	99% sRGB
Eye comfort	Standard low blue light modes	ComfortView Plus always-on low blue light
VESA mounting	100 x 100 mm	100 x 100 mm

Spec	Acer EK220Q E3bi Monitor	Dell P2222H Monitor
Resolution	1920 x 1080	1920 x 1080 pixels
Panel Type	IPS	IPS
Response Time	5 milliseconds	8 ms
Brightness	250 cd/m²	250 cd/m²
Connector Type	HDMI, VGA	—
HD Format	1080p	—
Energy Star	Yes	—
Size	21.5 in	—
Maximum Refresh Rate	100 Hz	—
Curved Screen	No	—
USB	No	—
Color	Black	—

Spec	Acer EK220Q E3bi Monitor	Dell P2222H Monitor
Memory Card Reader	No	—
Aspect Ratio	16:9	—
DVI	No	—
Ethernet	No	—
HDR	No	—
TCO Certification	No	—
EPEAT Rating	No	—
DVI Ports	No	—
Thunderbolt	No	—
Screen size	—	21.5-inch

Acer EK220Q E3bi Monitor vs Dell P2222H Monitor

Prices

Acer EK220Q E3bi Monitor vs Dell P2222H Monitor

Prices

Dell P2222H Monitor

What separates them

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