A side monitor is the unsung hero of a productive setup, the secondary display you turn vertically or angle beside your main screen for chat, docs, code, or reference material. It doesn’t need to be your flashiest panel, but the right size, refresh rate, and mounting flexibility make the difference between a cramped afterthought and a genuine workflow upgrade.
- Watch: Best Side Monitor — Video Review
- Top Picks at a Glance: Best Side Monitor by Use
- Side Monitor for PC Left or Right: Where to Put It
- How to Choose the Best Side Monitor
- Best Side Monitors by Budget Tier and Use Case
- The Best Side Monitors Reviewed
- More Side Monitors for Vertical, Office and Text Work
- More Side Screens for Gaming Setups and Portable Use
- Also Consider: Side Screens and Mounts
- What to Look For in a Side Monitor
- Side Screens for a Gaming Setup: Ideas That Work
- Side Monitor Ideas for PC Left: Layouts That Save Space
- How We Chose These Side Monitors
- Which One Should You Buy?
- Side Monitor Buying Thresholds: Numbers to Check Before You Buy
- Which Side Monitor for Which Setup?
- Common Mistakes When Buying a Side Monitor
- Setting Up the Second Screen
- Related Guides
- More Side Monitor Questions
- Frequently Asked Questions
- Side Monitor Problems and Quick Fixes
- Final Thoughts
- Related Articles
Below we cover how to choose a side monitor that complements rather than clashes with your primary display, then review a range of options from slim office panels to portable USB-C screens so you can find the ideal companion for your desk.
Editor's Pick
Updated October 2026 — The best side monitor for PC left or right of your main screen is a 24-inch IPS panel at 100 Hz or higher, such as the HP Series 3 Pro 24″, BenQ GW2491 or MSI PRO MP242LE. A 22 to 24 inch screen sits beside a 27-inch main display without towering over it, and IPS holds color when you view it at an angle. Laptop users and small desks do better with a 15.6 or 16 inch portable monitor like the ASUS ZenScreen MB169CK.
This guide adds more side monitors for PC setups, side screens for gaming setups, sizing rules, and mounting ideas. Every spec below comes from the maker listing, and no price is shown, only budget tiers.
AOC U27B3A 4K 27" IPS 3840×2160 UHD Frameless Monitor, Display Port x1, HDMI x2, Built in Speaker, Eye Care, Flicker Free, 1 Billion+ Colors, sRGB 128.7%, VESA

Philips 24 Inch Computer Monitor FHD 100Hz VA VESA Flicker-Free, 241V8LB | 1920×1080 LED Monitor, 4ms GtG, Adaptive Sync, HDMI 1.4, Tilt Adjust, Low Blue Light, 4yr Advance Replacement Warranty
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on Amazon
Sceptre New 22-Inch Gaming Monitor, FHD 1080p, Up to 144Hz, HDMI, DisplayPort, Built-in Speakers, Machine Black (E225W-FW144 Series, 2026)
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon
VILVA 15.6" FHD IPS USB-C HDMI Portable Monitor | 15.6" FHD IPS, USB-C/HDMI, cover+speakers, for PC/Mac/Phone/Xbox/Switch/PS4, portable.
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon
LG 27GS50F-B 27-inch FHD (1920 x 1080) Ultragear Gaming Monitor with 180Hz, 1ms MBR, HDR10, AMD FreeSync, HDMI, DisplayPort, 3-Side Virtually Borderless Design, Black
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon
msi PRO MP272LE 27-inch IPS 1920 x 1080 (FHD) Computer Office Monitor, 100Hz, Adaptive Sync, HDMI, DisplayPort, Tilt, 4-Side Slim Bezel 1ms, Black
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon🎮 Get More From Your Setup — Free
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Watch: Best Side Monitor — Video Review
Top Picks at a Glance: Best Side Monitor by Use
- Best vertical office side monitor: HP Series 3 Pro 24″ (pivot and height adjustment)
- Best budget side monitor for PC: LG 24U411A-B 24″ (120 Hz IPS)
- Best for sharp text: KTC 24 Inch QHD IPS (2560×1440)
- Best premium 24 inch: Dell UltraSharp U2424H
- Best side screen for gaming setup: Acer Nitro KG271U 27″ QHD 180 Hz
- Best portable side monitor: ASUS ZenScreen MB169CK 15.6″
Side Monitor for PC Left or Right: Where to Put It
A side monitor for PC use goes on whichever side you look at less often than your main screen. Many people put it on the left because the right hand stays on the mouse and the eyes stay centered on the main display. Left works well for chat, music and reference. Right works well if you are left-handed or you keep a mouse-heavy tool next to the main display.
- Left side: chat, email, a video call, or notes while you work on the main screen.
- Right side: a game guide, a stream dashboard, or a second app you drag windows into.
- Above or stacked: a vertical mount stacks two screens, which saves desk width.
- Angled inward: turn the inner edge toward you by 15 to 30 degrees so text stays readable.
Set the monitor layout in Windows display settings so the icons match the real left and right order. Otherwise the mouse will cross the wrong edge.
How to Choose the Best Side Monitor
- Orientation and pivot: If you’ll rotate it vertical for code or documents, prioritize a stand or VESA mount that pivots cleanly.
- Bezel width: Thin, near-borderless bezels keep the seam between your main and side screen minimal and less distracting.
- Refresh rate: 100Hz to 180Hz keeps scrolling and cursor movement smooth even on a secondary panel; 60Hz is fine for pure text.
- Connectivity: Match the monitor’s inputs to your spare ports, USB-C is ideal for laptops, while HDMI/DisplayPort suit desktops.
- Size and desk fit: A 22″ to 24″ panel usually balances beside a larger main monitor without dominating the desk.
Best Side Monitors by Budget Tier and Use Case
| Monitor | Size and resolution | Panel and refresh | Best for | Tier |
|---|---|---|---|---|
| HP Series 3 Pro 24″ | 24″ · 1920×1080 | IPS · 100 Hz | Vertical office use | Budget |
| LG 24U411A-B | 24″ · 1920×1080 | IPS · 120 Hz | Low-cost second screen | Budget |
| BenQ GW2491 | 23.8″ · 1920×1080 | IPS · 100 Hz | Long reading sessions | Budget |
| KTC 24″ QHD | 24″ · 2560×1440 | IPS · 100 Hz | Sharp text and coding | Mid-range |
| KTC H25T7-3 | 24.5″ · 1920×1080 | Fast IPS · 240 Hz | Fast second gaming screen | Mid-range |
| Dell UltraSharp U2424H | 23.8″ · 1920×1080 | IPS · 120 Hz | Office with USB-C | Upper-mid |
| Dell 27 Plus S2725DSM | 27″ · 2560×1440 | 144 Hz | Larger side screen with speakers | Mid-range |
| Acer Nitro KG271U | 27″ · 2560×1440 | IPS · 180 Hz | Dual-gaming desk | Mid-range |
| ASUS ZenScreen MB169CK | 15.6″ · 1920×1080 | IPS · portable | Laptops and small desks | Budget |
| Veout 16″ portable | 16″ · 1920×1200 | IPS · portable | Tall portrait view on the go | Budget |
Best side monitor under a budget ceiling: what to expect
Spec line: 22 to 24 inch · 1080p · IPS or VA · 60 to 120 Hz.
- 1080p at 24 inches gives about 92 pixels per inch, fine for chat, mail and documents.
- Stands are often tilt-only, so a VESA arm may be needed for vertical use.
- Speakers, USB hubs and color accuracy are usually basic.
- Refresh rates of 100 to 120 Hz are common even at this tier.
Mid-range side screens: what to expect
Spec line: 24 to 27 inch · 1440p or 1080p high refresh · IPS · HDMI plus DisplayPort.
- 1440p at 24 inches reaches about 122 pixels per inch, so text looks noticeably sharper.
- A 27-inch QHD panel is about 109 pixels per inch.
- High-refresh models suit a gaming setup where both screens show moving content.
- Check that your graphics card has a free output before you buy.
Portable side screens: what to expect
Spec line: 15.6 to 16 inch · 1080p to 1920×1200 · USB-C power and video · kickstand.
- A 15.6-inch 1080p screen is about 141 pixels per inch, very sharp but small.
- USB-C carries power and video over one cable only if your PC’s port supports video output.
- Brightness and color are enough for text, not for color-critical work.
The Best Side Monitors Reviewed
MSI PRO MP242LE 24″
A superb everyday side monitor with a 4-side slim-bezel IPS panel, 100Hz refresh, adaptive sync, and both HDMI and DisplayPort. Its tilt stand and clean 1080p image make it an easy, affordable companion for almost any main display.
LG 27GS50F-B 27″ UltraGear
If your side screen doubles as a second gaming display, this 180Hz FHD panel with 1ms MBR, HDR10, and FreeSync delivers smooth motion and a virtually borderless three-side design that pairs neatly alongside a primary monitor.
Philips 241V8LB 24″
A no-nonsense FHD VA panel with 100Hz refresh and flicker-free, VESA-compatible design. It’s a dependable, budget-friendly pick for anyone who wants a simple, easy-on-the-eyes secondary screen for documents and browsing.
Sceptre E225W-FW144 22″
This compact 22″ FHD panel pushes up to 144Hz with HDMI, DisplayPort, and built-in speakers, making it a versatile little side display that fits tight desks while still handling fast content nicely.
VILVA 15.6″ Portable Monitor
For laptop users and flexible setups, this FHD IPS portable screen with USB-C and HDMI is the ultimate side monitor, light, single-cable, and easy to prop beside a laptop at home or on the road.
More Side Monitors for Vertical, Office and Text Work
HP Series 3 Pro 24″ — Best for a vertical side monitor

HP Series 3 Pro 24" 100Hz FHD IPS Monitor with Adjustable Tilt | Swivel/Pivot/Height, Built-In Dual 2W Speakers, VESA Mount (100mm), Displayport, VGA, HDMI w/DKZ Hub, Black
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 24-inch Full HD (1920×1080) IPS panel at 100 Hz
- Tilt, swivel, pivot and height adjustment on the stand
- Built-in dual 2W speakers
- VESA mount compatible
Pros: pivots to portrait without buying an arm; IPS keeps color at an angle; simple setup; speakers cover calls. Cons: 1080p text is softer at 24 inches than 1440p; speakers are basic. Skip it if you want sharper text or USB-C power delivery.
BenQ GW2491 — Best for long reading sessions

BenQ GW2491 23.8” 1080p FHD 100Hz IPS Eye-Care Monitor, HDMI, DisplayPort, 1080x1920, Ultra Slim Bezel, TUV-Certified, Flicker-Free, Low Blue Light Plus, Eye-CareU
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 23.8-inch 1080p IPS panel, 100 Hz
- HDMI and DisplayPort inputs, ultra-slim bezels
- Eye-care features: low blue light and flicker-free, TUV certified per the listing
- VESA mount compatible
Pros: thin bezels make the seam between screens small; eye-comfort tech for long sessions; works well on an arm. Cons: no built-in USB-C; check whether the stand pivots. Skip it if you need speakers or a USB hub.
LG 24U411A-B — Best budget 120 Hz side screen

LG 24U411A-B 24-inch Full HD (1920 x 1080) IPS Computer Monitor, 120Hz, HDR10, Reader Mode, Flicker Safe, HDMI, Slim Stand Base, Black
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 24-inch Full HD (1920×1080) IPS panel, 120 Hz
- HDR10 support, Reader Mode, flicker-safe backlight
- HDMI input and a slim stand
Pros: 120 Hz makes scrolling smooth; Reader Mode eases long documents; clean design. Cons: HDR10 on an entry panel is a label more than an upgrade; stand has limited adjustment. Skip it if you want a pivot stand.
KTC 24 Inch QHD IPS — Best for sharp text and coding

KTC 24 Inch QHD IPS Computer Monitor, 100Hz Zero-Frame 2K for Gaming Office | Adaptive Sync, HDR10, 2560x1440, VESA, Tilt Adjustable, Low Blue Light, DisplayPort, HDMI, H24T27
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on Amazon- 24-inch QHD (2560×1440) IPS panel at 100 Hz, about 122 pixels per inch
- Adaptive Sync and HDR10 listed
- Zero-frame design, VESA mount, tilt stand
Pros: crisp text for code and spreadsheets; 100 Hz is smooth enough for a side screen; slim borders. Cons: tilt-only stand; Windows scaling may need a tweak next to a 1080p screen. Skip it if your main display is 1080p and you want matching density.
Dell UltraSharp U2424H — Best premium 24 inch side monitor

Dell U2424H UltraSharp 24 Inch FHD (1920x1080) Monitor, 120Hz, IPS, 5ms, 98% DCI-P3, 2X USB-C, 2X DisplayPort, HDMI, 3X USB, 3 Year Warranty, Silver
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on Amazon- 23.8-inch Full HD IPS panel at 120 Hz, 98% DCI-P3 listed
- USB-C, DisplayPort and HDMI inputs plus USB ports
- UltraSharp-series stand and build
Pros: USB-C single-cable laptop setup; strong color for the size; business-grade stand. Cons: higher tier than other 24-inch picks; still 1080p. Skip it if you just need chat and email on a second screen.
More Side Screens for Gaming Setups and Portable Use
KTC H25T7-3 — Best fast vertical-ready side screen

KTC 24.5 Inch 240Hz Gaming Monitor, FHD Computer Monitor Vertical, H25T7-3 | Fast IPS Panel, 1ms MPRT, Adaptive Sync, 94% DCI-P3, HDR 400, HDMI DP Ports, Tilt/Pivot/Height Adjustment, VESA Mount
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on Amazon- 24.5-inch Full HD Fast IPS panel at 240 Hz, 1 ms MPRT
- Adaptive Sync
- Listed as a vertical-capable monitor
Pros: 240 Hz suits a gaming setup where the side screen shows game content; fast panel; vertical-ready. Cons: overkill for chat and docs; 1080p only. Skip it if the side screen only runs apps.
Dell 27 Plus S2725DSM — Best larger side screen with speakers

Dell 27 Plus QHD Monitor - S2725DSM - 27-inch QHD (2560x1440) 144Hz 1ms Display, 2 x 3W Speakers, HDMI/DisplayPort 1.4 Connectivity, Height/Tilt/Pivot/Swivel Adjustability, AMD FreeSync - Ash White
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 27-inch QHD (2560×1440) display, 144 Hz, 1 ms
- Two 3W speakers
- HDMI and DisplayPort 1.4 inputs
Pros: QHD at 27 inches is about 109 pixels per inch; 144 Hz; speakers. Cons: too wide to rotate on many desks. Skip it if your main screen is smaller than 27 inches.
Acer Nitro KG271U — Best for a dual-gaming desk

Acer Nitro 27in QHD 2560x1440 IPS 180Hz Gaming Monitor KG271U N3bmiipx | 0.5ms, AMD FreeSync, DCI-P3 95%, 2xHDMI, DisplayPort, Speaker, VESA Mountable, Bluelight Filter, Flickerless Technology
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 27-inch QHD (2560×1440) IPS, 180 Hz, 0.5 ms
- AMD FreeSync, DCI-P3 95% listed
- Two HDMI inputs plus DisplayPort
Pros: matches a high-refresh main display; two HDMI inputs for a console; wide color. Cons: large footprint; benefits wasted if the GPU cannot drive two screens at speed. Skip it if you want a portrait setup.
ASUS ZenScreen MB169CK — Best portable side monitor

ASUS ZenScreen MB169CK 15.6 Inch 1080p Portable Monitor | Dual USB-C, 360 Kickstand, Anti-Glare IPS, Plug and Play, Laptop Screen Extender, Travel Display for MacBook and PC
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on Amazon- 15.6-inch 1080p anti-glare IPS, about 141 pixels per inch
- Dual USB-C ports
- 360-degree kickstand, plug and play
Pros: one-cable laptop setup; kickstand rotates for portrait; light enough to carry. Cons: 60 Hz-class, small for a desktop main screen. Skip it if you need a permanent full-size second display.
Veout 16″ Portable — Best tall portable screen

Veout 16" Portable Monitor for Laptop, 1920 * 1200P FHD IPS Travel External Screen, Dual USB-C & Mini-HDMI Blue Light Filter Eye Care Second Display with 4 Colors Kickstand, 0.3" Ultra-Slim
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on Amazon- 16-inch IPS at 1920×1200 (16:10), about 141 pixels per inch
- Dual USB-C and mini HDMI
- Blue-light filter listed
Pros: the 16:10 shape gives extra vertical room for documents; flexible inputs. Cons: built-in speakers and brightness are modest. Skip it if you want the panel to double as a gaming display.
Also Consider: Side Screens and Mounts
KOGODA 12.3″ stretched bar monitor

12.3" Stretched Bar Monitor, Samll Touchscreen for PC, Mini Wide Display | IPS 1920x720 Second Screen with Alu Frame, Dual Speakers, HDMI & USB-C One-Cable, for Raspberry Pi/PC Case/VESA Mount
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on AmazonA 1920×720 IPS bar for a stats or chat strip. Best for streamers and traders. Trade-off: too narrow for general apps.
Samsung 24″ S30GD IPS

Samsung 24" (S30GD) Essential Monitor with IPS Panel and Tilt Only Stand | 100Hz Refresh Rate, Ergonomic Design, Advanced Eye Care, Game Mode, LS24D304GANXZA
Included for 'Best Side Monitors' as a representative home product in this roundup; selection reflects the product set returned for this topic.
View on AmazonA 24-inch IPS monitor at 100 Hz. Best for a basic office side screen. Trade-off: tilt-only stand, so add an arm for vertical use.
HUANUO vertical dual monitor mount

HUANUO Vertical Dual Monitor Mount, Stacked Monitor Stand for 2 Monitors with Height Adjustment Computer Monitor Arm Supports Two 17 to 32 Inch with C Clamp Each Desk Mount Hold up to 17.6lbs
Included for 'Best Side Monitors' because the listing lists an explicit depth/thickness, which is the attribute this article compares.
View on AmazonA stacked mount for two screens with height adjustment. Best for saving desk width. Trade-off: check your monitor weight and VESA pattern first.
WALI vertical dual monitor mount
Holds two screens from 13 to 40 inches, up to 26.4 lbs combined per the listing. Best for a heavier second panel. Trade-off: needs a sturdy desk edge.
What to Look For in a Side Monitor
Size, Orientation and Physical Footprint
Screen dimensions matter more for a second display than for a main one. A 16:9 screen measures roughly 20.9 inches wide by 11.8 inches tall at 24 inches, and about 23.5 by 13.2 inches at 27 inches. Turned vertical, a 27 inch panel becomes more than 23 inches tall, which is hard to scan without moving your head. For portrait work, 22 to 24 inches is the more comfortable range. Check that the stand supports pivot, or that the monitor has VESA mounting holes (75x75mm or 100x100mm are standard) so an arm can rotate it.
Panel Type and Curvature
| Feature | Best for a side screen? | Reason |
|---|---|---|
| IPS panel | Yes | Colors and brightness hold up at off-angle viewing |
| VA panel | Sometimes | Strong contrast, but color shifts when viewed from the side |
| Curved 1500R | Rarely | Curve looks awkward when rotated or angled |
| OLED | With caution | Static windows such as chat and docs raise burn-in concerns |
A curved screen like the 32 inch Sceptre works best as a primary display. As a side monitor, a flat IPS panel keeps text straight when you angle it.
Resolution and Pixel Density
Pixel density decides how crisp text looks. A 24 inch 1080p screen sits around 92 pixels per inch, a 27 inch 1080p screen drops to about 82, and a 27 inch 4K screen reaches about 163. The 16 inch 2560×1600 portable monitor lands near 189, which makes small fonts very sharp but may require scaling. Mixed pixel density across two screens is workable because Windows applies scaling per monitor, though windows can change size when dragged between them.
Refresh Rate and Matching Your Main Screen
A side monitor rarely needs a high refresh rate for chat or documents, so 60 to 100Hz is enough for most uses. If you want to run games on it, something like the 240Hz KTC H25T7-3 or the 240Hz ROG OLED makes sense. Try to match height and color tone with your main display. Different panel types can show visible color differences when placed beside each other.
Connections and Cable Layout
Check that your GPU has a free output for the second screen. A monitor with a USB-C input that can carry video and power over a single cable, found on many portable and productivity models, reduces desk clutter.
Side Screens for a Gaming Setup: Ideas That Work
Side screens for a gaming setup mostly hold things you glance at: chat, Discord, a game wiki, a stream preview, or system monitoring. The game runs on the main display, so the side screen can be cheaper and slower. Rules of thumb:
- Keep the main display fastest. A 100 Hz side screen beside a 240 Hz main display is fine for chat.
- Match height, not brand. Align the top edges or the centers so your eyes stay level.
- Use the GPU output you have. Most cards have several DisplayPort and HDMI outputs, but check the count before buying.
- Run the game on the main screen only. Full-screen content on the second display can drop frames on some PCs.
- Consider a vertical stack. A stacked arm gives two screens in about the width of one.
Side Monitor Ideas for PC Left: Layouts That Save Space
- Left portrait: a 24-inch panel rotated vertical for code, chat or long documents.
- Left landscape, same height: a matching size for editing and reference.
- Left portable on a stand: a 15.6-inch screen for a small desk.
- Stacked above: a bar monitor above the main screen for a clock or stats.
How We Chose These Side Monitors
This is a research-based guide, not a lab test. Picks were chosen from maker spec sheets and the listings for size, panel type, refresh rate, ports, stand adjustment and mounting options, then sorted by budget tier and use. Pixel density figures are calculated from size and resolution. Curved and OLED panels appear only as optional media or gaming extras, not as the main side-monitor picks, because both are poor fits for a rotated or angled screen.
Which One Should You Buy?
| If you… | Choose… |
|---|---|
| Want a simple portrait-friendly screen for chat and docs | MSI PRO MP242LE or Philips 241V8LB |
| Want a gaming-capable 27 inch IPS beside your main screen | LG 27GS50F-B UltraGear |
| Need sharp text for coding or design | AOC U27B3A 4K |
| Play competitive games on both screens | KTC H25T7-3 or ASUS ROG Strix XG27AQDMGR |
| Have limited desk space or travel often | Upperizon 16 inch portable |
| Want the smallest, simplest option | Sceptre E225W-FW144 22 inch |
| Want a large, immersive second screen for media | Sceptre 32 inch curved |
Side Monitor Buying Thresholds: Numbers to Check Before You Buy
Use these cut-offs to narrow a long list fast. They come from common display specs and ergonomic guidance, not from a single test.
- Size: 22 to 24 inches for a portrait side screen; 27 inches only if it stays landscape. A 27-inch panel turned vertical is more than 23 inches tall.
- Resolution: 1080p is fine at 24 inches or under (about 92 pixels per inch). Choose 1440p at 24 inches for about 122 pixels per inch if you read small text all day.
- Refresh rate: 60 Hz for text, 100 to 120 Hz for smooth scrolling, 144 Hz or more only if games run on it.
- Panel: IPS first. VA is acceptable if viewed head-on. Skip curved panels for rotated use.
- Stand: look for pivot and height adjustment, or a VESA 75×75 or 100×100 mm mount.
- Inputs: HDMI or DisplayPort for desktops; USB-C with video output for laptops. Count your free GPU ports.
- Bezels: thin on at least three sides if the two screens touch.
Which Side Monitor for Which Setup?
- Office worker with a laptop: Dell UltraSharp U2424H or ASUS ZenScreen MB169CK.
- Programmer or writer: HP Series 3 Pro 24″ in portrait, or the KTC 24″ QHD for sharper text.
- Streamer or gamer: Acer Nitro KG271U or KTC H25T7-3 for chat, guides and a stream preview.
- Small desk: a portable screen on a stand, or a stacked mount.
- Tightest budget: LG 24U411A-B or Samsung 24″ S30GD.
If two options tie, pick the one whose stand can pivot. A side monitor that cannot rotate loses half its value for documents and code.
Common Mistakes When Buying a Side Monitor
- Buying a monitor larger than your main screen. The mismatch makes cursor movement between them awkward.
- Choosing a curved panel for portrait use. The geometry works against a rotated screen.
- Ignoring the stand’s range. Without height adjustment, you will have to stack books or buy an arm.
- Forgetting your GPU outputs. Confirm the cable type and number of free ports before you buy.
- Overspending on refresh rate. A side display for reference material gains little from 240Hz or higher.
- Skipping scaling checks. A 4K screen next to a 1080p one needs per-monitor scaling set deliberately.
Setting Up the Second Screen
- Place the side monitor so its inner edge meets the main screen’s edge, and angle it slightly toward you.
- Match the top edge or the center height of both panels, so your eyes stay level as you look across.
- In Windows display settings, drag the monitor icons to match the real layout so the cursor crosses where you expect.
- Set the scaling for each screen separately, and rotate the display to portrait in the same settings page if you mount it vertically.
- Match brightness and color temperature as closely as you can using the on-screen menu.
If a game or video drops frames, drag the window to the main screen. Many setups run smoother when full-screen content stays on the primary display.
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More Side Monitor Questions
What size side monitor for PC is best?
A 22 to 24 inch monitor is best beside a 27-inch main screen. It is easy to rotate and does not dominate the desk. Use a matching size if both screens will do the same work.
Which side should a second monitor go on?
Put it on the left if you use a mouse with your right hand and want your eyes centered on the main screen. Put it on the right for tools you reach for often. Both work.
Can I use any monitor as a side screen?
Yes, any monitor with an input your PC supports works. For the best result, choose a flat IPS panel with thin bezels and a stand that tilts or pivots.
Do side screens for a gaming setup need high refresh?
No, 60 to 100 Hz is enough for chat, guides and monitoring. Choose 144 Hz or more only if the side screen will show gameplay.
Should my side monitor match my main monitor resolution?
It helps but is not required. Windows scales each monitor separately, though windows may resize when dragged between a 1080p and a 4K screen.
Is a portable monitor good for a side screen on a desktop PC?
It works if your graphics card or a USB-C port supports video output. A portable screen is small, so it suits chat and notes better than main work.
Frequently Asked Questions
Does a side monitor need to match my main one?
Not exactly, but matching approximate height and color temperature reduces eye strain. Thin bezels help the two blend regardless of brand.
Should I mount my side monitor vertically?
Vertical orientation is excellent for code, chat, and long documents. Choose a panel with a pivoting stand or VESA mount to enable it.
Is a portable monitor good as a side screen?
Yes, options like the VILVA 15.6″ are perfect for laptops, adding a second display over a single USB-C cable with no bulky stand.
Do I need high refresh on a secondary screen?
For text and reference, 60-100Hz is fine. If it doubles as a gaming or media display, panels like the LG 180Hz are worth it.
Side Monitor Problems and Quick Fixes
- Mouse jumps to the wrong side: open Windows display settings and drag the monitor icons so they match the real left and right order.
- Windows change size between screens: set scaling per monitor, or keep the same resolution class on both screens.
- Colors look different: match color temperature in each on-screen menu and keep brightness close. Different panel types will never match exactly.
- Portable screen has no signal: the PC’s USB-C port may not carry video. Use the mini HDMI input, or a port marked with a DisplayPort or Thunderbolt symbol.
- Game stutters with two screens: keep full-screen content on the main display and put apps on the side screen. Close hardware-accelerated video on the side screen if frames drop.
- Vertical text looks blurry: enable ClearType tuning in Windows, or choose a 1440p panel for portrait use.
- Stand wobbles when rotated: a VESA arm with a gas spring is steadier than most stock stands.
Keep the cable length in mind too. A USB-C or DisplayPort cable of about 6 feet covers most desk layouts, and a shorter cable on the side screen keeps the desk tidy.
Final Thoughts
The best side monitor depends on your desk and workflow. For most people, the MSI PRO MP242LE offers the ideal blend of slim bezels, 100Hz smoothness, and value. Gamers who want a capable second screen should choose the LG 27GS50F-B, while laptop users and minimalists will love the portable VILVA 15.6″.



