Acer's first two 240Hz OLED gaming monitors are based on LG Display's WOLED panels. The curved 45-inch Predator X45 and the flat 27-inch Predator X27U.
240Hz OLED monitors – either WOLED or QD-OLED – will be one of the big display trends in 2023. Asus, LG, Samsung, Corsair, and Dough had already announced their monitors, and Acer follows suit at CES 2023.

Acer's 45-inch Predator X45 240Hz OLED gaming monitor. Photo: Acer
- "Acer’s newest Predator-branded gaming monitors, the Predator X45 and the Predator X27U, feature OLED displays and blazingly fast performance that will please even the most hardcore gamers," announced Acer. "Both the Predator X45 and Predator X27U have very fast 240 Hz refresh rates and 0.01 ms pixel response time combined with AMD FreeSync Premium technology to deliver incredibly smooth gameplay."
The curved 45-inch has 3440x1440 resolution while the flat 27-inch has 2560x1440 resolution. Both support HDR10 and OLED, unlike LCD, actually has the hardware to deliver the HDR picture experience during gaming. Acer says that peak brightness is 1000 nits (3% window) and DCI-P3 is 98.5%. It sounds like they have a semi-matte coating as Acer says that "its UGR<22 rating allows for glare-free gaming in bright conditions".
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Predator X45 features DisplayPort 1.4 and two HDMI 2.0 ports. Acer did not provide connectivity details for Predator X27U. Both have a USB hub with USB Type-C.
The Acer Predator X45 will be available in North America and Europe in Q2 for $1,699 / €1,799. The Acer Predator X27U also in Q2 for $1,099 / €1,099.

Acer's 27-inch Predator X27U 240Hz OLED gaming monitor. Photo: Acer