AOC Agon AG251FZ Review – 240Hz Gaming Monitor with FreeSync

The AOC Agon AG251FZ was designed to provide a 240Hz fast refresh rate and 1ms response rate, which made it one of the fastest 240Hz gaming monitors. With Full HD 1080p resolution and Freesync technology as well as many other features the gamers will surely have an awesome gaming experience.

AOC Agon AG251FZ In-Depth Review

Display and Performance:

AOC AGON AG251FZ ReviewThe AOC Agon AG251FZ sports a 25-inch TN panel with a 1920 x 1080 resolution, 1ms response time, 1000:1 contrast ratio, and a 400 cd/m² Brightness.

For a TN panel, the AOC Agon AG251FZ seems to do better than other monitors as the viewing angles doesn’t show much of color shift expect from a really low angle.

As for color performance, it isn’t as high, but it covers a decent 93% of the sRGB color space (68% AdobeRGB) and has an average Delta E of just 1.03 and that say the monitor can deliver decent colors.

The contrast was excellent at over 900:1, the screen appears too bright while grayscale performance suffers a bit. The only thing that’s slightly off is gamma, which is a little low at 1.84.

This result in, darker colors appearing a little lighter than they would at the correct value of 2.2, but that can be fixed with calibration. The backlighting looks nice, there’s no obvious backlight bleed and the matte finish to the display keeps reflections to a minimum.

As for performance, The AOC Agon AG251FZ features the native 240Hz refresh rate, 1ms G2G response time and support for AMD FreeSync. This monitor clocks in at only 3.6ms of delay at its peak with the Low Input Lag option under Game Settings turned on.

The AOC Agon AG251FZ display has an impressively low response time for its TN panel, which means its pixels can genuinely keep up with its fast refresh rate. It also has a low input lag, which help have a fast performance.

Click here, to know more about the best 4k monitors for PS4 Pro.

As for AMD Freesync, it has a range from 48Hz to 240Hz and eliminates screen tearing and stuttering for a smooth gaming performance.


The AOC AGON AG251FZ included helpful features to this monitor that will improve the quality of gaming performance and experience as well. It has Game Mode Presets like FPS, racing, RTS and custom mode where gamers can custom their own game mode.

It features Flicker-Free technology, which reduces flickering to give a more comfortable gaming experience. This minimizes the effects of eye fatigue and other damage during long, intense gaming sessions.

Moreover, it has low-blue-light technology, which helps reduce harmful blue lights to avoid eye strain. Furthermore, it comes with shadow control technology that helps brighten dark areas so gamers can see well. Plus, it has other features include a Kensington lock, i-Menu, and e-Saver.

Design and Connectivity:

The AOC Agon AG251FZ is a beautiful monitor with elegant angular stand has a solid two metal base, while the matte black finish of the monitor looks great. A small red Agon logo on the lower bezel and around the back there’s a large red plastic panel. On the side of the monitor there is a black hook, which can be used to hang headphone on.

The panel has a narrow bezel, only 12mm at the top and sides. The OSD buttons are on the bottom right edge as well as the power toggle, but it will be rare to use them as the included AOC controller provides complete OSD navigation along with three image mode buttons.

The side profile is of average thickness, and the right edge includes two USB ports plus mic and headphone outputs.

The base is made from solid aluminum, it has 130mm height adjustment along with 20° swivel to each side, 21.5° back tilt and 3.5° forward as well as pivot up to 90°.

You also get a portrait mode. There’s a scale on one side to make replicating the panel’s vertical position easier. It can also support a VESA mount 100 x 100 mm.
For connectivity, the AOC Agon AG251FZ has a single DisplayPort, HDMI 1.4 and 2.0 ports.

The latter supports FreeSync, 240Hz, and HDCP 2.2. The 1.4 port works with MHL-compatible devices. There is also a DVI connection that works up to 144 Hz. As well as VGA, that’s included as well with 60 Hz support. Also, there are a

USB 3.0 hub, an analog audio input, and a mic input. The mini-USB port is for the OSD controller.


  • Fantastic gaming performance
  • Nice range of connections and extra features
  • Freesync
  • Low input lag
  • Nice design
  • 240Hz refresh rate


  • Some gamma issues
  • No blur-reduction
  • Poor viewing angles


The AOC Agon AG251FZ is a good gaming monitor as it delivers such a great gaming performance to the players. It’s equipped with features that would help out the gamers in competitive gaming. The TN panel is a downside, but with a few tweaks it can work just fine and satisfy the users.

Although the price might seem a bit pricey for most users, but the product is well worth its price for its capabilities, build quality, and design.

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