Our Verdict
The Acer Predator X27 is a very good monitor for most uses. It's well-suited for a brighter office setting but has limited ergonomic options. It has some excellent gaming features, like support for NVIDIA's G-SYNC technology, but is limited by the relatively high input lag. It's a great monitor for media creation, thanks to the outstanding color gamut.
- Excellent wide color gamut.
- Excellent HDR brightness.
- Image remains accurate at an angle.
- Performs poorly in a dark room.
The Acer Predator X27 is a good monitor for office use. It has outstanding text clarity, and the 4k screen is great for multitasking. It has wide viewing angles and decent reflection handling, and it's bright enough for most viewing environments. Unfortunately, it has limited ergonomic options and might be more difficult to place in an ideal position.
This is a great monitor for gaming. The Acer X27 has some excellent gaming features, including support for NVIDIA's G-SYNC technology. Input lag is high compared to most other gaming monitors, which might disappoint serious gamers. Unfortunately, it's not well-suited for late-night gaming in a dark room due to the poor contrast ratio and bad black uniformity.
The Acer X27 is a very good monitor for watching movies or streaming internet video. The large screen and 4k resolution produce very detailed, crisp images that allow you to see every detail. The wide color gamut and good color volume make sure you see every detail in your videos. Small highlights are very bright in HDR, and the local dimming feature enhances the experience, but there's some haloing around bright highlights in dark scenes.
The Acer Predator X27 is an impressive monitor for media creation, especially for print and media creation thanks to the complete coverage of the wider Adobe sRGB color space. The high-resolution screen makes it easier to see every detail and get more done.
The Acer Predator X27 delivers the best HDR experience we've seen so far on a monitor, with incredible peak brightness and a great HDR color gamut. Unfortunately, it's a bit limited by its low contrast ratio and bad black uniformity. It also has unusually high input lag for gaming, which might disappoint serious gamers.
Changelog
- Updated Aug 17, 2020: We've retested the SDR and HDR peak brightness, as well as the HDR color gamut and HDR color volume with local dimming enabled.
- Updated Feb 17, 2020: Converted to Test Bench 1.1.
- Updated Aug 16, 2018: Review published.
- Updated Aug 14, 2018: Our testers have started testing this product.
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Differences Between Sizes And Variants
We've tested the 27" Acer Predator X27, version bmiphzx.
If someone comes across a different type of panel or if their Predator X27 doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.
| Model | Version | Size | Panel Type | Curved | Resolution | Native Refresh | Notes |
| X27 | bmiphzx | 27" | IPS | No | 4k | 120Hz | G-SYNC only |
| X27 | Pbmiphzx | 27" | IPS | No | 4k | 120Hz | G-SYNC + Adaptive Sync |
| XB273K | Pbmiphzx | 27" | IPS | No | 4k | 120Hz | G-SYNC |
| XB271HU | bmiprz | 27" | IPS | No | 1440p | 144Hz | G-SYNC |
| X34 | bmiphz | 34" | IPS | Yes | 3440x1440 | 120Hz | G-SYNC |
Update 01/06/2020: Acer has released an updated version of the X27, which can be identified by the version number 'Pbmiphzx'. As far as we know, this model is identical to the one we've tested but supports Adaptive Sync over HDMI as well.
The X27 we reviewed was manufactured in May 2018.
Popular Monitor Comparisons
The Acer Predator is a very good HDR gaming monitor, and one of the best 4k monitors for HDR we've tested, but it comes at a very premium price. See our recommendations for the best gaming monitors.
Although they share similar names, the Acer Predator X27 bmiphzx and the Acer Predator X27U bmiipruzx are different types of monitors. The X27 is a 4k, 144Hz monitor with native G-SYNC support, while the X27U is a 1440p, 240Hz monitor, so they're aimed at different types of gamers: the X27 is better for playing detailed games with NVIDIA graphics card, and the X27U is better for high refresh rate gaming. On top of that, they deliver different picture quality as the X27 is LED-backlit, allowing it to get brighter, while the X27U has an OLED panel, so it displays deeper blacks.
The Acer Predator X27 bmiphzx is better than the Acer Predator XB271HU Bmiprz. The X27 has a higher native resolution, so you can see more details, and it supports HDR. It displays a wider color gamut, which is great for professional users in print and marketing. The XB271HU has lower native input lag, which is great for gamers, and has an optional black frame insertion feature that can clear up motion.
The Acer Predator X27 bmiphzx and ASUS ROG PG279Q offer very similar performance overall. The Acer X27 has a higher native resolution, at 4k, that allows you to see more details or multitask easier. The X27 supports HDR and has a wider color gamut. The ROG PG279Q has better motion handling, including an optional black frame insertion feature, and has less input lag for gaming.
The Acer Predator X27 bmiphzx is a bit better than the Samsung CHG70 unless dark room performance is an important factor. The Predator X27 is much brighter than the CHG70 and has wider viewing angles. The X27 offers a better HDR experience, highlights stand out more in some scenes, and colors are more saturated and vibrant. The VA panel in the CHG70 delivers deeper blacks, and better black uniformity, but worse viewing angles. The CHG70 also has better low input lag.
We buy and test more than 30 monitors each year, all of which we purchase ourselves, without cherry-picked units or samples. We put a lot into each unbiased, straight-to-the-point review, and there's a whole process from purchasing to publishing, involving multiple teams and people. We do more than just use the monitor for a week; we use specialized, custom tools to measure various aspects and deliver objective, data-driven results. We also consider multiple factors before making any recommendations, including the monitor's cost, its performance compared to the competition, and whether it's easy to find.
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