LG 24U421A-B 23.8" Black 2025

The LG 24U421A-B is a 24-inch 1080p curved monitor with a built-in webcam and USB-C, making it a killer all-in-one hub for a clean home office setup. The 100Hz refresh rate is a nice smoothness upgrade, but the 250-nit screen is dim and image quality is a weak point. At a good street price around $150, it's a fantastic value for hybrid workers who prioritize convenience over raw picture quality. Skip it if you do creative work or need a fast gaming display.

Let's be real about that 1080p VA panel. With a brightness of just 250 nits, this screen isn't going to wow you with HDR content, even though it technically supports HDR10. In a brightly lit room, you might find yourself squinting a bit. The contrast ratio is a native 3000:1, which is typical for VA and means blacks look properly dark in a dim room, a clear win over most IPS panels in this price bracket. The sRGB color coverage is rated at 99%, which is solid for office work and web browsing, but our color score lands it just above average. Creative professionals should look elsewhere, our creative score for this monitor is its weakest area by a long shot.

The 100Hz refresh rate is the performance story here. It's not going to blow anyone's mind, but it's a genuine quality-of-life upgrade over 60Hz. Everything from moving your cursor to scrolling through long documents feels more responsive. For gaming, the 5ms response time is fine for casual titles and RPGs, but you will notice some ghosting in darker scenes. The Dynamic Action Sync feature helps keep input lag low, which is a nice touch. Think of it as a monitor that can game, not a gaming monitor.

The LG's main rivals are generally bigger, sharper, or faster. The Dell S2725QC is a 27-inch 4K USB-C monitor that absolutely destroys this LG in display quality and resolution, making it the obvious choice if your priority is screen real estate and sharp text over a built-in webcam. You'll pay more for the Dell, but your eyes will thank you. On the gaming side, the ASUS TUF Gaming VG27AQL5A runs at a much higher refresh rate and has a faster response time, making the LG look sluggish in comparison for anyone who plays competitive shooters.

Then there's the BenQ MA270U and Acer Nitro XV272U, both of which sit in a similar price bracket but offer higher resolutions and better color performance for creative tasks. The LG's only real trump card against all of them is that integrated webcam and the aggressively low price when you find a good deal. If you don't need a webcam, almost any other monitor in this list will give you a better-looking picture. But if you're setting up a minimalist desk for video calls and light work, none of those competitors can match the LG's all-in-one convenience.

Pricing on this monitor is all over the map, with a wild spread from $134 to over $2500 across different vendors. Obviously, nobody should be paying anywhere near the high end of that range. At its typical street price around the $150 mark, this thing is a steal for a home office warrior who needs a webcam and USB-C hub built right in. You're essentially getting a decent monitor and a basic docking station in one package. Just make sure you're buying from a reputable seller and not some third-party listing a used unit for the price of a used car.

When you stack it up against buying a separate monitor, webcam, and USB-C hub, the value proposition becomes really clear. You save desk space, cable clutter, and a bit of cash. The 15W power delivery over USB-C won't charge a power-hungry laptop quickly, but it'll keep a smaller notebook or a Steam Deck topped off during use. For the right buyer, this is a lot of utility for not a lot of money.

The LG 24U421A-B is one of those monitors that knows exactly what it is and doesn't try to be anything else. It's a 23.8-inch, 1080p curved VA panel aimed squarely at people who want a single display for their home office that can also handle some light gaming or Netflix after hours. The built-in webcam and USB-C connectivity with 15W power delivery are the headline features here, making it a genuinely tidy solution for a hybrid work setup. You plug one cable into your laptop and you've got video, a bit of charging, and a webcam ready to go for your next Zoom call.

That 1500R curve is pretty aggressive for a 24-inch screen, and it's the kind of thing you'll either love or find a bit odd at first. It wraps the image around your field of view, which can make spreadsheets feel more immersive than they have any right to be. The 100Hz refresh rate is a nice step up from the standard 60Hz office monitor, making scrolling and window animations feel smoother. Just don't expect it to replace a dedicated gaming monitor, the 5ms response time and VA panel's inherent black smearing mean fast-paced shooters won't look as clean as they would on a fast IPS or OLED.

We see this monitor landing in a weird but interesting spot. Its overall score in our database is middle-of-the-pack, but it absolutely nails the "feature set for the price" category, ranking at the very top. The display quality itself is a weak spot, coming in near the bottom of our rankings. So you're trading raw image quality for a bunch of practical, everyday conveniences. If that sounds like a fair trade for your desk, keep reading.

Anyone doing photo editing, video work, or graphic design should skip this monitor without a second thought. The color performance is just not up to the task, and our creative score puts it near the bottom of the pile. You need a factory-calibrated IPS panel with wider color gamut coverage, like the BenQ MA270U or a Dell UltraSharp. This LG is built for documents and video calls, not color-critical work.

Serious competitive gamers should also look elsewhere. While the 100Hz refresh rate is nice, the 5ms response time and VA panel's characteristic black smearing will put you at a disadvantage in fast shooters. A monitor like the ASUS TUF Gaming VG27AQL5A with a much higher refresh rate and faster response time is a far better fit for that use case, even if you have to buy a separate webcam.

For the hybrid worker who lives on Zoom calls and wants a desk that doesn't look like a cable factory exploded, this LG is a fantastic pick. The built-in webcam is genuinely useful, the USB-C connection simplifies your life, and the 100Hz panel makes everything feel a bit more modern than a dusty old 60Hz office screen. It's a purpose-built tool that does its specific job really well. The curve is a fun bonus that makes the small screen feel a little more special.

But if your day involves any kind of visual creative work, or if you're a serious gamer who plays fast-paced titles, you should walk right past this one. The dim, lower-resolution panel and mediocre response times will frustrate you. For those users, saving up for a brighter, higher-resolution IPS display with better color accuracy is the right move. This LG is a champion of convenience, not a champion of image quality.