Acer PM Series PM191Q Ebmiuux 18.5" Black 2024
Its 18.5-inch 1080p IPS panel with a 100Hz refresh rate and Adaptive-Sync stands out in the portable monitor category, offering smoother motion than typical 60Hz travel displays. The dual USB-C connectivity and integrated speakers make it a self-contained, lightweight unit at just 1130 grams for easy single-cable setups. This monitor is best for hybrid workers who need a compact secondary screen for documents and spreadsheets, not for gaming given its 7ms response time and 250-nit brightness.
Snapshot
The 30-Second Version
The Acer PM191Q is an ultra-portable 18.5-inch monitor that's perfect for road warriors needing a second screen. It's thin, light, and runs at a smooth 100Hz with FreeSync, all powered by a single USB-C cable. Just don't expect great gaming performance or outdoor visibility.
Pros & Cons
Pros
- Incredibly thin and light at 1.1 kg, easy to toss in any bag 94th
- Single-cable USB-C for power, video, and data keeps setup clean 82nd
- 100Hz refresh rate with FreeSync is a rare find in a portable monitor 74th
- Dual USB-C ports plus HDMI give you flexible connectivity options 71st
- Integrated stand tilts a full 90 degrees and VESA mount adds versatility
Cons
- 250-nit brightness washes out in bright rooms or outdoors
- 7ms response time and low gaming score make it a poor choice for fast-paced games
- 18.5 inches is smaller than most portable monitors, which can feel cramped
- Built-in speakers are weak and tinny, headphones are a must for media
- Display quality is just average, with colors that won't satisfy creatives
The proof
Performance
The PM191Q runs at 100Hz, which is a noticeable step up from standard 60Hz office monitors. Scrolling through documents and web pages feels fluid, and the Adaptive-Sync support keeps things tear-free in lighter games. The 7ms response time isn't going to impress competitive gamers, and our database puts its overall gaming score at a rough 34.7 out of 100. That's a weak spot, but it's also not what this monitor is built for. For productivity and media consumption, the motion handling is more than adequate.
Color and display performance land in the middle of the pack. The 250-nit brightness is about average for portable monitors, and the IPS panel delivers solid color accuracy for office work. Our data shows it sitting around the 41st percentile for color and 22nd for overall display quality. That means it's not going to wow photo editors, but it's perfectly fine for emails, coding, and watching YouTube during lunch. The built-in speakers are a nice touch for video calls, though at 1.5W each, you'll still want headphones for anything serious.
Specifications
Full Specifications
Display
| Size | 18.5" |
| Resolution | 1920x1080 (Full HD) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
| Curved | No |
Performance
| Refresh Rate | 100 Hz |
| Response Time | 7 |
| Adaptive Sync | FreeSync |
Color & HDR
| Brightness | 250 nits |
| HDR | ✓ |
| HDR Support | HDR |
Connectivity
| HDMI Ports | 1 |
| DisplayPort | 0 |
| USB-C | 2 |
| Speakers | Yes |
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | No |
| Tilt | Yes |
| Swivel | No |
| Pivot | No |
| VESA Mount | 75x75 |
Features
| Webcam | No |
| Touchscreen | No |
| Weight | 1.1 kg / 2.5 lbs |
vs Competition
Stacked against the ASUS TUF Gaming VG27AQL5A or LG UltraGear 27GX790A-B, the Acer PM191Q is playing a completely different game. Those are full-size desktop gaming monitors with high refresh rates and better color performance. The Acer isn't trying to compete there. It's a portable productivity tool. Where it does stand out is against other travel monitors. The Dell S2725QC is a 27-inch 4K USB-C monitor meant for a desk, not a backpack. The BenQ MA270U targets Mac users with high color accuracy. The Acer's real competition is other 15-18 inch portable panels, and it holds its own with that 100Hz panel and dual USB-C ports.
If you need a monitor that can handle some light gaming on the side, the PM191Q is more capable than most portables thanks to FreeSync. But if color-critical work is your thing, the BenQ MA270U or even a used iPad as a second screen would serve you better. For pure portability and single-cable simplicity, the Acer is one of the better options on the market right now.
| Spec | Acer PM Series PM191Q Ebmiuux 18.5" | ASUS ROG Strix XG27UCDMG | LG UltraGear 45GX950A-B | MSI MAG 271QPX QD-OLED E2 | Samsung Odyssey G60SD | Gigabyte M Series OLED MO27U2 SA |
|---|---|---|---|---|---|---|
| Screen Size | 18.5 | 27 | 44.5 | 27 | 27 | 27 |
| Resolution | 1920 x 1080 | 3840 x 2160 | 5120 x 2160 | 2560 x 1440 | 2560 x 1440 | 3840 x 2160 |
| Panel Type | IPS | OLED | OLED | QD-OLED | QD-OLED | OLED |
| Refresh Rate | 100 | 240 | 165 | 240 | 360 | 240 |
| Response Time Ms | 7 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 | 0.029999999329447746 |
| Adaptive Sync | FreeSync | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro | FreeSync Premium Pro |
| Hdr | HDR | DisplayHDR True Black 400 | DisplayHDR True Black 400 | DisplayHDR True Black 400 | HDR10+ | DisplayHDR 400 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Portability | Display | Feature | Ergonomic | Performance | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| Acer PM Series PM191Q Ebmiuux 18.5" | 41.2 | 94.3 | 21.7 | 73.8 | 55 | 44.5 | 82.3 | 71.4 |
| ASUS ROG Strix XG27UCDMG Compare | 96.6 | 63.3 | 97.9 | 87.2 | 91.9 | 98.4 | 84.9 | 99.4 |
| LG UltraGear 45GX950A-B Compare | 99.5 | 79.3 | 99.8 | 97.2 | 91.9 | 97 | 97.5 | 95.4 |
| MSI MAG 271QPX QD-OLED E2 Compare | 99.2 | 63.3 | 79.4 | 87.2 | 91.9 | 98.4 | 84.9 | 99.4 |
| Samsung Odyssey G60SD Compare | 92.3 | 46.5 | 79.4 | 73.8 | 91.9 | 99.7 | 89.9 | 95.4 |
| Gigabyte M Series OLED MO27U2 SA Compare | 87.1 | 63.3 | 97.9 | 87.2 | 91.9 | 98.4 | 84.9 | 70.7 |
Price
Value & Pricing
Pricing on the PM191Q is all over the map, with listings ranging from $130 to an absurd $26,693 across different vendors. Obviously, you should ignore the outlier and look for deals closer to that $130 mark. At that price, it's a solid value for a portable IPS monitor with 100Hz and USB-C. The best deal we spotted was through Memory Express, but it's worth shopping around since Amazon listings fluctuate. Compared to alternatives like the ASUS ZenScreen series or Lenovo ThinkVision portables, the Acer undercuts many on price while offering a higher refresh rate. Just don't pay more than $150 for it.
We started tracking prices for this product on Jun 7, 2026. The chart appears once we have more data.
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Overview
The Acer PM191Q Ebmiuux is a portable 18.5-inch monitor built for people who need a second screen on the go. It's crazy thin at just 1.4 cm and weighs about 1.1 kg, so it slides into a laptop bag without much fuss. If you've been searching for a travel monitor that doesn't need a separate power brick, the single-cable USB-C setup here is a real selling point. You plug it into your laptop, phone, or tablet and it handles video, data, and power all at once.
Image quality is decent for a portable panel. The 1920 x 1080 IPS screen gives you clear text and colors that hold up from different angles, which is exactly what you want for presentations or spreadsheet duty at a coffee shop. At 250 nits, it's bright enough for indoor use but will struggle in direct sunlight. The 100Hz refresh rate and FreeSync support are unexpected bonuses in a productivity-focused portable monitor, making casual gaming smoother than your typical 60Hz second screen.
Build-wise, the integrated stand tilts from 0 to 90 degrees, so you can prop it up however you need. There's also a VESA 75x75 mount if you want to get it off the desk entirely. Connectivity is a strong point with two USB-C ports, an HDMI 1.4 port, and even built-in 1.5W speakers. It's not going to replace a full desktop setup, but for a grab-and-go display, Acer packed in a lot.
Common Questions
Q: Is the Acer PM191Q good for gaming?
It's okay for casual games thanks to the 100Hz refresh rate and FreeSync support, but the 7ms response time and low gaming score mean it's not built for competitive or fast-paced titles.
Q: Can the Acer PM191Q be powered by USB-C?
Yes, the PM191Q supports single-cable USB-C connectivity that handles video, data, and power all at once, so you don't need a separate power adapter.
Q: Does the Acer PM191Q work with MacBooks?
It works with any laptop that supports USB-C video output, including MacBooks, Windows laptops, and even some tablets and phones.
Q: How bright is the Acer PM191Q screen?
The screen is rated at 250 nits, which is fine for indoor use but can be hard to see in direct sunlight or very bright rooms.
Who Should Skip This
Skip the PM191Q if you're a serious gamer or need a color-accurate display for photo and video editing. The low gaming performance and average color accuracy will frustrate you. If you want a portable monitor for gaming, look at something with a faster response time like the ASUS ROG Strix portable series. Creatives should consider an iPad as a second screen or a higher-end portable from BenQ. Also, if you work outside a lot, the 250-nit brightness just won't cut it.
Verdict
The Acer PM191Q Ebmiuux is a great little travel companion for anyone who needs extra screen real estate without the bulk. It's not a gaming monitor, and it's not a color-accurate creative tool. What it is, is a lightweight, easy-to-use second screen that makes working on the road feel less cramped. The 100Hz refresh rate is a genuine perk that makes everything from scrolling to casual gaming feel smoother than expected.
Should you buy this? If you're a student, remote worker, or frequent traveler who wants a no-fuss portable monitor that connects with a single cable, yes. It's a solid pick at the right price. If you're a gamer looking for a primary display or a photographer who needs accurate colors, look elsewhere. For everyone else who just wants more pixels on the go, the PM191Q gets the job done without weighing you down.