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LG 24BR400-B Monitor vs Acer EK220Q E3bi Monitor

Both are 1080p IPS panels at 100Hz with FreeSync, so motion and color are close. The LG 24BR400-B gives you a larger 24-inch screen, an extra DVI input and a headphone jack; the Acer EK220Q E3bi is smaller at 21.5 inches but adds VESA mounting, Energy Star certification and a stronger owner rating. Buy the LG for the bigger screen and legacy ports; buy the Acer if you want a wall-mountable, more efficient panel and care about the higher owner score.

  • Choose the LG 24BR400-B if you want the larger 24-inch screen and need DVI or a headphone jack for older gear.
  • Choose the Acer EK220Q E3bi if you want a wall-mountable, Energy Star panel with a higher owner rating and don't need the extra inch.

Prices

  • LG 24BR400-B Monitor: $79.99 at Staples (checked today)
  • Acer EK220Q E3bi Monitor: $50.00 at eBay (checked today)
  • Difference: the Acer EK220Q E3bi Monitor is $29.99 cheaper than the LG 24BR400-B Monitor today
LG
LG 24BR400-B 24" Monitor

LG 24BR400-B Monitor

LG 24BR400-B 24" Monitor

4.5(187 ratings)
$79.99at StaplesObserved at 7:00 PM
See all prices and details
Visit Staples
Pros
  • Larger 23.8-inch viewing area
  • DVI input for older PCs and docks
  • Headphone out for private listening
  • IPS color with FreeSync at 100Hz
Cons
  • No VESA mount, so no arm or wall setup
  • No built-in speakers
  • No DisplayPort
Acer
Acer EK220Q E3bi 21.5" IPS AMD FreeSync Monitor 100Hz

Acer EK220Q E3bi Monitor

Acer EK220Q E3bi 21.5" IPS AMD FreeSync Monitor 100Hz

4.7(512 ratings)
$50.00at eBayVerified
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Wall-mountable and arm-friendly
  • Energy Star rated
  • Higher owner rating from more reviews
  • ZeroFrame bezel suits multi-monitor setups
Cons
  • Smaller 21.5-inch screen
  • No DVI or headphone jack
  • No built-in speakers

What separates them

LG 24BR400-B MonitorAcer EK220Q E3bi Monitor
Screen size23.8 inches21.5 inches
Panel and refreshIPS, 100Hz, 5ms, FreeSyncIPS, 100Hz, 5ms, FreeSync
PortsHDMI, VGA and DVI, plus headphone outHDMI and VGA only
VESA mountingNot supportedWall-mountable
Energy certificationNot listedEnergy Star
Owner rating4.5 from 187 ratings4.7 from 512 ratings
ErgonomicsTilt onlyTilt from -5 to 20 degrees
Bezel designStandard bezelZeroFrame near bezel-less

Price history

$89.99$69.99
Oct 30Nov 9
  • LG 24BR400-B Monitor: lowest $79.99 on Nov 3 at Staples; $79.99 on Nov 9.
  • Acer EK220Q E3bi Monitor: lowest $69.99 on Nov 4 at Best Buy; $69.99 on Nov 9.

Prices at every store

LG 24BR400-B Monitor

  • StaplesNew

    In stock

    $79.99Observed at 7:00 PM
    Visit Staples
  • CDWNew

    In stock

    $109.99Observed at 7:00 PM
    Visit CDW
  • DirectDialNew

    In stock

    $111.00Observed at 7:00 PM
    Visit DirectDial
  • ConnectionNew

    Availability unknown

    $109.95Observed Nov 6, 2026, 7:56 AM
    Visit Connection

Also available at

  • eBayCheck price at eBay
  • Newegg.comCheck price at Newegg.com
  • eBayCheck price at eBay

Store links may earn us a commission.

All 11 stores and price history →

Acer EK220Q E3bi Monitor

  • Enervee CANew

    In stock

    $69.99Observed at 7:00 PM
    Visit Enervee CA
  • Enervee NYNew

    In stock

    $69.99Observed at 7:00 PM
    Visit Enervee NY
  • eBayNew

    Availability unknownSold by aemoelle (97.3% positive, 299 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $50.00+ $16.07 shippingVerified
    Visit eBay
  • Best BuyNew

    Availability unknown

    $69.99Observed at 7:00 PM
    Visit Best Buy

Store links may earn us a commission.

All 6 stores and price history →

Specs compared

SpecLG 24BR400-B MonitorAcer EK220Q E3bi Monitor
Resolution1920 x 10801920 x 1080
Connector TypeHDMI, VGA, DVIHDMI, VGA
HD Format1080p1080p
Panel TypeIPSIPS
Size24 in21.5 in
Maximum Refresh Rate100 Hz100 Hz
Response Time5 milliseconds5 milliseconds
Brightness250 cd/m²250 cd/m²
Memory Card ReaderNoNo
HDRNoNo
Curved ScreenNoNo
USBNoNo
Show all 40 specsShow fewer specs
SpecLG 24BR400-B MonitorAcer EK220Q E3bi Monitor
ColorBlackBlack
Aspect Ratio16:916:9
DVINoNo
EthernetNoNo
TCO CertificationNoNo
EPEAT RatingNoNo
DVI PortsNoNo
ThunderboltNoNo
Display TypeLCD—
With TouchscreenYes—

What reviewers say

LG 24BR400-B Monitor

  • 4.5 / 5187 ratings

Rated 4.5 out of 5 from 187 ratings, buyers generally see this as a solid, affordable everyday monitor. Complaints tend to center on the basic 1080p resolution and modest brightness rather than reliability.

What people mention
  • Picture qualityPraisedOwners say the IPS panel delivers accurate color and wide viewing angles for the money.
  • Refresh ratePraisedThe 100Hz panel is noted as noticeably smoother than standard 60Hz office monitors.
  • ResolutionCriticisedSome buyers find 1080p at 24 inches less crisp than they expected, especially for text-heavy work.
  • BrightnessMixed250 cd/m² is adequate indoors but reviewers say it struggles in bright, sunlit rooms.

Acer EK220Q E3bi Monitor

  • 4.7 / 5512 ratings

Rated 4.7 out of 5 from 512 ratings, buyers treat this as a solid budget monitor that does the basics well. Praise centers on picture quality and value for the price, with few serious complaints.

What people mention
  • Picture qualityPraisedOwners describe the IPS panel as sharp and colorful for a budget monitor.
  • Refresh ratePraisedBuyers notice the 100Hz refresh rate feels smoother than standard 60Hz screens.
  • ValuePraisedReviewers repeatedly call it a good buy for the money.
  • SizeMixed

Questions and answers

Which is better for a small desk?
The Acer. At 21.5 inches it takes less desk space and its near bezel-less frame keeps the footprint tight. The LG gives you more screen but needs more room.
Which has the better picture?
They are close. Both are 1080p IPS panels at 100Hz with FreeSync and 250 cd/m² brightness. The LG's extra size makes it more immersive; the Acer's ZeroFrame bezel helps in multi-monitor setups.
Can I mount either on a monitor arm?
Only the Acer. It is wall-mountable and works with a VESA arm. The LG 24BR400-B has no VESA mount, so it stays on its stand.
Which is better for gaming?
Both handle casual gaming well with 100Hz and FreeSync. The LG's larger screen helps immersion, but the Acer's 1ms response claim and mount option suit fast setups.
Is the LG worth stepping up to over the Acer?
Step up to the LG if you need the bigger screen, DVI or a headphone jack. Otherwise the Acer covers the same panel basics with mounting and efficiency certification.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.

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Pivot‎ 90°‎
No
—
3.5 mm In (AUX)No—
Color Depth8 Bit—
Camera (built-in)No—
HDMI Ports1—
HDMI Version1.4—
DisplayPortNo—
TiltableYes—
VGA PortsNo—
TouchscreenNo—
Headphone OutYes—
VESA-MountNo—
Screen Size (")24.0—
SpeakersNo—
Picture-By-PictureNo—
Refresh Rate (Hz)100—
TypeStandard—
Adjustable HeightNo—
Some find 21.5 inches small for a main display, better suited as a second screen.