Samsung Odyssey G4 G40H 25-inch: Specs, Price, Pros & Cons
The 25-inch Odyssey G4 G40H is Samsung's entry-level competitive monitor, and it is built around one number: 300 Hz at 1920 x 1080 on a Fast IPS panel, over DisplayPort. It is the successor to the 240 Hz G40B and shares its platform with the 27-inch G40H; the 25-inch, US model LS25HG402ENXZA, has no Samsung US page yet. The active area works out to about 24.5 inches, which at 1080p gives roughly 90 pixels per inch, the density competitive players choose on purpose because it keeps frame rates high and enemies large.
Samsung quotes a 1 ms GTG response, 300 nits typical brightness with a 240-nit minimum, a 1,000:1 static contrast ratio, 99 percent sRGB coverage and 16.7 million colours. HDR10 signalling is supported without a DisplayHDR certification or local dimming, so it is a signal the monitor accepts rather than an HDR experience. Both FreeSync Premium and G-Sync Compatible are listed, with no published VRR range. The gaming toolkit is Samsung's usual set: Black Equalizer, Virtual Aim Point, Super Arena Gaming UX and an off timer, with Flicker Free and Eye Saver Mode for comfort.
The stand is the part that a budget monitor usually skips and this one does not: 105 mm of height travel, tilt from -3 to 25 degrees, 45 degrees of swivel each way and a full 92-degree pivot, on a 100 x 100 VESA plate. Connectivity is the trade: one DisplayPort 1.2, one HDMI 2.0 capped at 240 Hz, a headphone jack, and nothing else, so no USB, no USB-C and no speakers. The box holds a DisplayPort cable and a power cable; no HDMI cable is listed.
Category strengths
Where the Samsung Odyssey G4 G40H 25-inch beats the average
- A higher refresh rate ?300 Hz vs 213.58 Hz (avg)
- A faster response time ?1 ms vs 1.46 ms (avg)
- Has height adjustment ?
- Has pivot adjustment ?
- Has swivel adjustment ?
- Has headphone output ?
- Has variable refresh rate ?
Where the Samsung Odyssey G4 G40H 25-inch trails the average
- A much lower contrast ratio ?1000:1 vs 499721:1 (avg)
- No USB hub ?
- No USB-C ?
- Fewer HDMI ports ?1 vs 1.7 (avg)
- A smaller screen ?25" (63.5 cm) vs 28.97" (73.58 cm) (avg)
- A lower pixel density ?90 ppi vs 123.24 ppi (avg)
- No local dimming ?
- No built-in speakers ?
- No KVM switch ?
- Fewer DisplayPort inputs ?1 vs 1.06 (avg)
Editor’s note
I would recommend the 25-inch G40H to a shooter player with a mid-range card who has decided, correctly, that frames matter more than pixels. At this resolution a modest GPU actually produces the frames the panel can show, the small screen keeps the action in the centre of vision, and the stand is the kind budget rivals leave out. It is a purpose-built tool, and the purpose is Counter-Strike, Valorant and their relatives.
In use, connect it over DisplayPort and forget the HDMI port exists for the PC; it runs a step slower and is there for a console or a second machine. The DisplayPort revision is old but carries everything this panel can draw. Set the pivot and height on day one – a small panel that sits too low is the most common complaint about this class, and this one fixes it in ten seconds.
Do not buy it for anything but SDR gaming. Typical-only brightness, ordinary IPS contrast and an HDR badge with no dimming behind it make a competent picture and nothing more; for films or photo work a 1440p panel at the same money is the better tool. For text the density is coarse – fine for a game HUD, tiring for a spreadsheet.
The 27-inch sibling is the same panel stretched further, so it is softer still; the 25 is the sharper of the two and the one competitive players will prefer.
Against the Acer Nitro KG271U Z2bmiipx, this is fewer pixels, more hertz and a much better stand; against the AOC Q27G3XMN it is speed instead of HDR. Buy it for frames and the stand; skip it if the resolution line already made you hesitate.
Specifications
Quality bars are generated automatically against 101 other monitors.
Picture
Gaming
Ergonomics & design
Connectivity
Features
Sources and verification
Where the specifications come from
- Retailer listing (cross-check)amazon.com
Verification
- First published
- Specifications last checked
- Sheet completeness
- 33 of 42 specifications verified; the rest show as Unknown and are never estimated or scored
- Basis
- Research-based: specifications and editorial text were compiled from the documents listed here and the manufacturer’s published data. We have not tested this unit ourselves; where independent measurements are mentioned they belong to the linked publication.
Where to buy
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Price history
Monitors with similar specs to the Samsung Odyssey G4 G40H 25-inch
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The bottom line
The Samsung Odyssey G4 G40H 25-inch earns a VS Score of 36, trailing most of the 102 monitors we compare here, at least on the spec sheet.
- Who it’s for
- Shooter players on a mid-range graphics card who want the highest refresh in the budget tier and a fully adjustable stand for the least money.
- Who should look elsewhere
- Anyone who wants resolution, HDR that does something, USB ports or speakers – the connection panel is as bare as they come.
- The trade-off that matters
- Speed and a proper stand at a budget price, in exchange for a coarse panel, typical-only brightness and the barest connectivity in the group.
- The main alternative
- Acer Nitro KG271U Z2bmiipx – if 1440p sharpness matters more than the last few hertz, at a similar price with a much worse stand.
The VS Score is calculated from the weighted specifications above, compared with every other monitor we track — a shortlisting guide, not a substitute for your own priorities. See how we score.
