Buying Guide
The Best 40-Inch Gaming Monitors
Three monitors ranked on refresh rate and screen size, where the Odyssey G7 40 has the highest refresh rate; the M70B 43 is the cheapest route in.
By Alex Morgan, PC Hardware Editor
11 min read3 products evaluated
A 38-45 inch screen gives an immersive view without a super-ultrawide's width. Every pick sits in that size range, ordered from the lowest price.
Rankings weigh refresh rate, resolution and size as the makers state them; if a maker skips response, the guide says so rather than guess, since we have not benched them.
Quick Picks
Which of the 3 picks to look at first. Tap a name for the full analysis.
Lowest Price Here
Samsung M70B 43-inch Smart MonitorThe cheapest way into this group, below the INNOCN 43.
Best for: Buyers who would rather put the savings elsewhere than into the INNOCN 43.
Check price for Samsung M70B 43-inch Smart Monitor on Amazon (opens in a new tab)
Also Consider
INNOCN 43-inch 4K 144HzBuilt-in stereo speakers.
Best for: Buyers who want built-in stereo speakers.
Check price for INNOCN 43-inch 4K 144Hz on Amazon (opens in a new tab)
Fastest Refresh
Samsung Odyssey G7 (G75F) 40-inch WUHDThe highest refresh rate here (180Hz).
Best for: Esports players with a GPU that can feed high frame rates.
Check price for Samsung Odyssey G7 (G75F) 40-inch WUHD on Amazon (opens in a new tab)
| Pick | Why it stands out | Best for | Check price |
|---|---|---|---|
| The cheapest way into this group, below the INNOCN 43. | Buyers who would rather put the savings elsewhere than into the INNOCN 43. | Check price for Samsung M70B 43-inch Smart Monitor on Amazon (opens in a new tab) |
| Built-in stereo speakers. | Buyers who want built-in stereo speakers. | Check price for INNOCN 43-inch 4K 144Hz on Amazon (opens in a new tab) |
| The highest refresh rate here (180Hz). | Esports players with a GPU that can feed high frame rates. | Check price for Samsung Odyssey G7 (G75F) 40-inch WUHD on Amazon (opens in a new tab) |
Our Picks
Lowest Price Here1 of 3
Samsung M70B 43-inch Smart Monitor
Samsung's M70B is a 43-inch 4K smart monitor with built-in TV apps, wireless display and USB-C.
Best for
- Buyers who would rather put the savings elsewhere than into the INNOCN 43.
Skip if
- Choose another pick if you can't accept this: a 60Hz refresh rate that suits work more than fast games.
Why we like it
It runs at 60Hz, so it suits streaming and casual play. On refresh rate it trails the group at 60Hz, while the Odyssey G7 40 offers 180Hz. It matches the INNOCN 43 on screen size (43 inches).
It shares a 3840x2160 (4K) resolution with the INNOCN 43; the Odyssey G7 40 goes with a 5120x2160 resolution. An HDR10 is unique to it among these picks, while the Odyssey G7 40 uses a DisplayHDR 600. You also get wireless display from phones and laptops and SmartThings IoT hub.
At 4K, check that your graphics card and cable support 4K at the refresh rate you want before you buy. No other pick here cost less at our last price check, and the INNOCN 43 was closest.
Key specs
- Refresh rate
- 60Hz
- Resolution
- 3840x2160 (4K)
- Size
- 43 inches
- Response
- 4ms
- HDR
- HDR10
- USB-C
- Yes
Pros
- 4K resolution for sharp text and detail
- a USB-C input for laptops
- Built-in streaming TV apps
- Wireless display from phones and laptops
Cons
- a 60Hz refresh rate that suits work more than fast games
- HDR10 support without a DisplayHDR certification
- Refresh rate trails the Odyssey G7 40 (180Hz)
The catch
Refresh rate is its weakest area, and the Odyssey G7 40 covers it better at 180Hz.
Also Consider2 of 3
INNOCN 43-inch 4K 144Hz
INNOCN's 43-inch 4K monitor runs at 144Hz with built-in speakers, USB-C and a height-adjustable stand.
Best for
- Buyers who want built-in stereo speakers.
Skip if
- Price-first buyers should look at the M70B 43, which cost less when we checked.
Why we like it
It is a lower-cost way to a TV-sized desktop screen. Its 144Hz refresh rate ranks second of 3 here, behind the Odyssey G7 40 (180Hz) and ahead of the M70B 43 (60Hz). On screen size it ties with the M70B 43 at 43 inches.
Like the M70B 43, it has a 3840x2160 (4K) resolution, while the Odyssey G7 40 uses a 5120x2160 resolution. No other pick in this guide offers an HDR400; compare the M70B 43, which has an HDR10. It also offers USB-C input.
Reaching 144Hz at 4K needs DisplayPort 1.4 with DSC or HDMI 2.1 on your graphics card, and a GPU able to render well above 100fps at 4K. On price it sat second of 3, between the cheaper M70B 43 and the pricier Odyssey G7 40, at the time of writing.
Key specs
- Refresh rate
- 144Hz
- Resolution
- 3840x2160 (4K)
- Size
- 43 inches
- HDR
- HDR400
- Stand
- height adjustment
- USB-C
- Yes
Pros
- 144Hz for smoother motion than a 60Hz office screen
- 4K resolution for sharp text and detail
- a stand with height adjustment
- a USB-C input for laptops
Cons
- Costs more than the M70B 43 at the time of writing
Fastest Refresh3 of 3
Samsung Odyssey G7 (G75F) 40-inch WUHD
Samsung's Odyssey G7 40 is a 40-inch 5120x2160 ultrawide at 180Hz with DisplayHDR 600.
Best for
- Esports players with a GPU that can feed high frame rates.
Skip if
- Skip it if screen size matters most to you; the M70B 43 offers 43 inches.
Why we like it
It has the widest 4K-class canvas among these monitors. Its 40-inch WUHD panel is DisplayHDR 600 certified and refreshes at 180Hz with 1ms GtG response. On refresh rate it leads this guide at 180Hz, ahead of the INNOCN 43 (144Hz).
Its 40 inches screen size is the smallest in this group; the M70B 43 leads at 43 inches. You get a 5120x2160 resolution here, which sets it apart from the INNOCN 43 and its a 3840x2160 (4K) resolution. You get a DisplayHDR 600 here, which sets it apart from the INNOCN 43 and its an HDR400.
It also comes with a 40-inch 21:9 1000R curve. Only the INNOCN 43 came close to it on price at the time of writing; it cost the most of the 3 picks.
Key specs
- Refresh rate
- 180Hz
- Resolution
- 5120x2160
- Size
- 40 inches
- Response
- 1ms
- HDR
- DisplayHDR 600
Pros
- 180Hz for smoother motion than a 60Hz office screen
- DisplayHDR 600 certification
- 40-inch 21:9 1000R curve
- 5120x2160 resolution, the only one here
Cons
- Screen size trails the M70B 43 (43 inches)
- Costs more than the M70B 43 at the time of writing
The catch
It gives ground on screen size, where the M70B 43 comes in at 43 inches.
How We Chose These 40-Inch Gaming Monitors
Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.
- The figures behind the order
- We lined up three monitors on refresh rate, resolution, screen size and response, using each maker's published specs. We did not test them in-house, and response and USB-C are missing for at least one pick.
- What every pick has in common
- All 3, from the M70B 43 to the Odyssey G7 40, state refresh rate, resolution and screen size.
- Where the specs have gaps
- The INNOCN 43 gives no response; the Odyssey G7 40 gives no USB-C.
- Price range
- At our last check the picks ran from the M70B 43 ($250 to $500) to the Odyssey G7 40 ($500 to $1000).
What to Look for in a 40-Inch Gaming Monitor
Key buying criteria so you get the right fit the first time.
Refresh rate
Across these 3 picks refresh rate spans 60Hz (the M70B 43) to 180Hz (the Odyssey G7 40). The INNOCN 43 comes second at 144Hz, in the $250 to $500 tier against $500 to $1000 for the Odyssey G7 40.
Screen size across these picks
The M70B 43 tops screen size at 43 inches and the Odyssey G7 40 sits lowest at 40 inches; 2 picks share the top figure. Start with the M70B 43 if screen size decides it.
A super-ultrawide monitor between two speakers Response
The M70B 43 lists 4ms; the Odyssey G7 40 lists 1ms.
HDR
The M70B 43 lists HDR10; the INNOCN 43 lists HDR400; the Odyssey G7 40 lists DisplayHDR 600.
An ultrawide monitor on a desk in a dim room Extras that separate them
The M70B 43: wireless display from phones and laptops. The INNOCN 43: a height-adjustable stand. The Odyssey G7 40: 180Hz.
How to Choose a 40-Inch Gaming Monitor
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who would rather put the savings elsewhere than into the INNOCN 43 | M70B 43 | The cheapest way into this group, below the INNOCN 43 |
| Buyers who want built-in stereo speakers | INNOCN 43 | Built-in stereo speakers |
| Esports players with a GPU that can feed high frame rates | Odyssey G7 40 | The highest refresh rate here (180Hz) |
Scroll sideways to see every column.
Key specs side by side
The Odyssey G7 40 leads on refresh rate at 180Hz, ahead of the INNOCN 43 at 144Hz. "Not listed" marks response where the INNOCN 43 leaves the figure out.
| Monitor | Refresh rate | Resolution | Size | Response |
|---|---|---|---|---|
| M70B 43 | 60Hz | 3840x2160 (4K) | 43 inches | 4ms |
| INNOCN 43 | 144Hz | 3840x2160 (4K) | 43 inches | Not listed |
| Odyssey G7 40 | 180Hz | 5120x2160 | 40 inches | 1ms |
Scroll sideways to see every column.
By price at the time of writing
The M70B 43 was the lowest-priced pick ($250 to $500) and the Odyssey G7 40 the highest ($500 to $1000) when we checked; tiers move with Amazon pricing.
| Price tier | Monitors |
|---|---|
| About $250 to $500 | M70B 43, INNOCN 43 |
| About $500 to $1000 | Odyssey G7 40 |
Frequently Asked Questions
Which has the highest refresh rate: the Odyssey G7 40 or the INNOCN 43?
The Odyssey G7 40 tops refresh rate at 180Hz; the INNOCN 43 follows at 144Hz, 25% apart. The spread runs down to the M70B 43 at 60Hz.
What does the Odyssey G7 40 add over the M70B 43?
The spec sheets show refresh rate (180Hz against 60Hz) in its favour. It does not win everywhere: the M70B 43 still leads on screen size (43 inches). On our last price check the M70B 43 was in the $250 to $500 tier and the Odyssey G7 40 in the $500 to $1000 tier, with 1 other pick between them; pay the difference only if refresh rate decides your purchase.
Why is the Odyssey G7 40 our Fastest Refresh pick?
It carries the badge for the highest refresh rate here (180Hz). On refresh rate it leads the INNOCN 43, 180Hz against 144Hz, a 25% margin. The price of that: the M70B 43, the cheapest pick, still beats it on screen size (43 inches against 40 inches). It makes sense for esports players with a GPU that can feed high frame rates.
Do the M70B 43 and the Odyssey G7 40 differ on resolution?
The M70B 43 and the INNOCN 43 use 3840x2160 (4K); the Odyssey G7 40 uses 5120x2160.
What extras do the M70B 43 and the INNOCN 43 include?
The M70B 43: built-in streaming TV apps. The INNOCN 43: built-in stereo speakers. The Odyssey G7 40: a 40-inch 21:9 1000R curve.
Bottom Line
Our first pick is the M70B 43, chosen for the cheapest way into this group, below the INNOCN 43. Look at the INNOCN 43 for built-in stereo speakers if those matter more to you.
Check desk depth; big screens need distance.
Related Guides
- Related guideThe Best Gaming Monitors to Buy Now
- Related guideThe Best 1440p Gaming Monitors to Buy
- Related guideThe Best OLED Gaming Monitors
- Similar guideThe Best 34-Inch Ultrawide Monitors
- Similar guideThe Best Curved Gaming Monitors
- ExplainerHow to Choose an Ultrawide Monitor
- ExplainerUltrawide Monitor Resolutions: 2560x1080, 3440x1440, 3840x1600 and 5120x1440
- Also see: graphics cardsWill This GPU Fit My Case and PSU? A Pre-Purchase Checklist
- Similar guideThe Best Curved Ultrawide Monitor
- Topic hubAll ultrawide and curved monitors guides
About the author
PC Hardware Editor
Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.
Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility
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