There are many type of laptop as a monitor, you can check below list with features

Duex Pro Portable Monitor (Upgraded 2.0 Version), The On-The-Go Dual-Screen Laptop Monitor, 12.5" Full HD IPS Display, USB A/Type-C, Plug and Play, Dual-Side Sliding, Sleek and Lightweight Design

$349.99
$298.99  in stock
4 new from $298.99
4 used from $219.74
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as of May 23, 2020 7:23 am

Features

  • 【Upgraded 2.0 Version With Powerful New Graphics Chip】Full HD 1080P Display: 12.5” IPS Screen, Full HD 1920×1080 display, Brightness 300 nits, compatible with USB Type-C and Type-A laptops, Mac, PCs, etc.(Not For ThinkPad X1)
  • Flexible Rotation & Dual-Slide Sliding: Provides a full 270° rotation, with the option for a 180° presentation mode. Choosing your optimum viewing angle for any situation. You can also slide DUEX Pro to either side of your laptop screen.
  • Single Type-C Cable to Power and Display: Simply plug DUEX Pro into your laptop, and you’re ready to boost your productivity by up to 50%! USB Tpye-C cable and USB-C to A Adapter included.
  • Simple to Use & Easy to Attach: Place magnetic adhesives on the laptop, Attach DUEX Pro on adhesives, then Plug in and Slide out. It is that SIMPLE!
  • 【Kickstand Included In The Box】Compact and Durable: Ultra-portable award-winning design at 1.6 pounds and 0.48 inches slim to pair perfectly with ANY laptops. Product Dimensions- 12.8 x 8.6 x 0.48 inches.Created with high-quality industry materials and can withstand the wear and tear that comes with transporting your laptop around. 1 Year Warranty is provided!

Acer PM161Q bu Portable Monitor 15.6" Full HD (1920 x 1080) (USB Type-C for Video/Power & Micro USB for Supplemental Power),Black

$179.99
$129.99  in stock
12 new from $129.99
3 used from $118.59
Free shipping
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as of May 23, 2020 7:23 am

Features

  • 15. 6" Full HD (1920 x 1080) widescreen IPS display
  • Portable and versatile design
  • Response time: 7ms (g to G)
  • Just 2. 1 lbs and only 0. 79" Thin
  • Ports: USB Type-C for video & Micro USB port for power charging (USB Type-C cable & Micro USB cable included)

AOC e1659Fwu 15.6-Inch Ultra Slim 1366x768 Res 200 cd/m2 Brightness USB 3.0-Powered Portable LED Monitor w/ Case

$99.99  in stock
16 new from $99.99
4 used from $104.95
Free shipping
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Amazon.com
as of May 23, 2020 7:23 am

Features

  • 16" (15. 6" Viewable) Display, 200 cd/M2 Brightness, 16: 9 aspect ratio. Max Resolution 1366 x 768, 500: 1 contrast ratio, 5ms response time
  • Multiple USB monitors can be simultaneously connected to a single laptop to function as a multi-monitor PC or Mac. Simply installing Display Link software on the PC or Mac allows you to easily add multiple USB monitors for external displays without unnecessary extra hardware
  • Usb-powered (no power cable required) with USB 3. 0 technology.
  • Foldable flexi-stand for portrait or landscape view in Auto-pivot mode
  • Ultra slim design for Easy carry on-the-go for business presentations and frequent travelers, and case is included. Refresh rate: 60Hz

Portable Monitor -Duex Pro Upgraded 2.0 with Kickstand Combo, 12.5 Inch Full HD IPS Screen for laptops, USB C/Type -A Lightweight Dual Laptop Monitor, Brightness Adjustable Anti Glare Portable Screen

$284.88  in stock
3 new from $284.88
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as of May 23, 2020 7:23 am

Features

  • * Adjustable Portable Dual Screen *: Mobile Pixels invented this 12.5 inch 1920x1080P IPS monitor which offers rich and vivid colors from all viewing angles. Anti-glare Eye Care Brightness Adjustable second monitor attached to your laptop for easy travel, compatible with USB Type-C, Type-A ,Windows, Macbook, Chromebook laptops
  • * Innovative Mounting Mechanism *: Attach,Slide and Work! Collapse this lightweight(1.6lbs) portable display to your laptop,compact(0.48 inch slim) to save space, play and work anywhere you go, on airplane, coffee shops, co-working spaces,etc.
  • * Boost Productivity by 50% *: Toggling between windows is a killer to efficiency when working on laptops. Portable dual monitor increases your producitivy by 50% according to research. Duex Pro dual screen monitor integrated work with entertainment in one laptop.
  • * 7 Different Uses *: Full 270° Rotation Mode to save use space; 180° presentation Mirror Mode to share the same screen in meetings; Landscape Viewing Mode; Portrait Viewing option for any situation; Kickstand supports this additional display to use on table; Slide DUEX to either side of your laptop monitor as you prefer.
  • * Energy-Saving & Durable * : Energy Star(up to 8 hours for Macbook Pro), BSMI, CE, FCC, KCC, RoHS, UL, WEEE, CA65 certified, high quality plastic and screen withstand the wear and tear that comes with transporting your laptop around. ONE YEAR WARRANTY.

Corprit Portable Monitor, 15.6 inch 1080P FHD USB C Monitor with Type-C HDMI DP IPS Display, External Secondary Display for PC Mac Laptop Phone Tablet Portable Gaming Monitor for Switch Xbox

$179.99  in stock
1 new from $179.99
3 used from $165.59
Free shipping
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Amazon.com
as of May 23, 2020 7:23 am

Features

  • 【FHD IPS 1080P Monitor】 A 15.6-inch advanced IPS panel matte-finish portable monitor is equipped with amazing 1920 x 1080 resolution, up to 500cd/m2 brightness, 16.7 millions of colors, and 178° viewing angle. It delivers sharp and vibrant display colors. Quick refresh and response makes images refresh quickly and smooth gaming experience, allowing you to enjoy High-Definition entertainment and gaming.
  • 【Wide Compatibility & Versatile Monitor】With USB Type-C, mini HDMI, and mini DP video/audio signal transmission ports, plug and play, which enables the monitor to easily work with phones, tablets, laptops, PCs, TVs, Xbox/PS4/Switches/Raspberry pi gaming systems, and even action camera to play business presentations, games, stream shows, clips, movies, TV series, videos, photos, demo, and more.
  • 【Great External Monitor for Phone/Laptop/PC】Corprit portable monitor can be connected with your type-c smartphone directly just using a USB-C to USB-C cable to watch video or play gaming on a bigger screen. It can be connected with your laptop/PC using a mini HDMI/DP to HDMI/DP cable as an extra or second monitor to display in landscape or portrait mode for work purposes.
  • 【Perfect Moveable & Travel Monitor】 Corprit portable external monitor is designed for easy travel, with a slim design, a 15.6-inch screen, weighing 2.86lbs, and an original durable removable PU leather protector case with 3 different positions to work as a stand, easy to throw in your bag and go. Whether you are a business person, gamer, traveler, or photographers, Corprit portable monitor is ready to go to work as soon as you are when you’re on the go.
  • 【Portable Gaming Monitor & Reliable After-sale Service】 If you're game enthusiasts, you can connect Corprit portable monitor directly to your Xbox/PS4/Switches, Raspberry pi entertainment center to be a gaming monitor for playing on a larger screen to improve viewing experience. Corprit provides reliable and professional after-sale service and we will work on fixing any issue within 24 hours. You will enjoy the best shopping experience!

ZSCMALLS Portable Monitor 15.6 Inch Full HD USB C HDMI Computer Display Dual Monitor with Speaker for Laptop Computer Phone Gaming Monitor for PS3 PS4 Xbox Nintendo Raspberry pi

$169.99
$159.99  in stock
1 new from $159.99
Free shipping
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Amazon.com
as of May 23, 2020 7:23 am

Features

  • [Ultra Portable Monitor] 15.6” Matte Monitor delivers stunning 1920 x 1080 resolution, IPS screen with ultra HDR option, design for portable with only net weight 1.42lb and 0.39 inches slim, make it easy to carry, handy, best for travelling
  • [Plug and Play Feature] The USB C portable monitor has impressive feature of plug and play that doesn’t require any driver installation. Compatible with thunderbolt 3. Support mirror and split screen mode, increase your productivity and your gaming pleasurable, great choice for dual monitor or third screen
  • [Smart Design & Case] Original protective cover which is made with a durable PU leather exterior, it is strong enough to fold into 3 different positions to create a stand. Thanks for the smart pen hole design, you can easily stand the monitor by only
  • [Widely Application] Portable display with USB C, mini HDMI and USB port make it easy connection with Laptops, PCs, Phones, PS3/PS4, XBOX ONE or Nintendo Switch and Mouse, Keyboard to play business presentations, games, videos, TV series, photos etc
  • [No Worry Service] 100% money back guarantee for any issue in 30 days. 3-year warranty and tech support. If you have any question, feel free to contact us, best as business gift, birthday and back to school gift

AMERIERGO Monitor Riser Stand - 16.5 Inch Desk Organizer Stand for Laptop Computer, Desktop Printer Stand with Phone Holder and Cable Management, Versatile as Storage Shelf & Screen Holder

$27.95
$25.98  in stock
1 new from $25.98
4 used from $22.63
Free shipping
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as of May 23, 2020 7:23 am

Features

  • EASY TO ASSEMBLE - Get your new monitor stand riser within 2 minutes, super easy to assemble this wood monitor stand with the instruction provided
  • SPACE SAVING - With 16.5” x 9.1” desktop surface, you could put up your monitor and store your keyboard or office supplies underneath the monitor riser, maximum utilize your desktop space, keep your items in order
  • SPECIAL DESK ORGANIZATION - Comes with a phone holder slot that could put your phone, a hub for cable management that you could organize your mess cable. Special accommodating makes your workplace instantly neat
  • ERGONOMIC VIEWING HEIGHT - Raise your screen to a proper position, providing your screen extra 3.9-inch height, creating a good sitting position that could relieve your eye strain and your back pain, enhancing work efficiency
  • MULTI-FUNCTIONAL MONITOR STAND - This monitor riser can be used as a desktop stand, printer stand, laptop stand, monitor riser stand, or a computer stand, perfect desk organization accessory for home and office use

2 Pack Premium Laptop PC Monitor Stand with Sturdy, Stable Black Metal Construction. Fashionable Riser Height Adjustable with Non-Skid Rubber. Perfect for Computer Monitor iMac Stand or Computer Shelf

$35.95
$32.95  in stock
2 new from $32.95
9 used from $30.31
Free shipping
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as of May 23, 2020 7:23 am

Features

  • IMPROVED ERGONOMICS for reduction of back and neck strain and pain. Use this computer monitor stand to easily raise your monitor to just the right height for comfortable viewing at 4" to 5 1/2". You will notice the difference right away. Stay comfortable and get more done!
  • SLEEK, FASHIONABLE, ELEGANT DESIGN makes this monitor riser a very nice accessory for your desk and office. Make of durable black steel. It's smooth and feels great with vented top surface. Holds up to 44 pounds including most monitors.
  • COMPACT SIZE doesn't hog desk space like other bulky stands do. Measures just 14.5 x 9.3 Inches. Plenty of storage space under to keep game console, controllers, books papers and other items.
  • STABLE WON'T SLIDE, SHAKE, VIBRATE. We combine super durable steel construction with non-skid rubber underneath for a flawless experience. The rubber keeps the legs in place and protects your desk surface from scratches.
  • 100% MONEY BACK GUARANTEE ensures this will quickly become your favorite no-risk purchase. This makes a great gift for birthdays, anniversaries, Christmas, and anyone who just got a new computer.

Plugable USB 3.0 Universal Laptop Docking Station for Windows (Dual Video HDMI and DVI/VGA, Gigabit Ethernet, Audio, 6 USB Ports)

$106.00
$94.00  in stock
8 new from $94.00
6 used from $82.72
Free shipping
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as of May 23, 2020 7:23 am

Features

  • FLEXIBLE EXPANDABILITY - A single USB 3.0 connection from a host PC to this dock provides dual video outputs, wired Gigabit Ethernet, 3.5mm Headphone and Microphone jacks, two USB 3.0 ports, and four USB 2.0 ports
  • DUAL HD MONITORS - Built-in HDMI and DVI outputs each supporting 1920x1200 resolution @ 60Hz refresh rate. Includes DVI to VGA adapter and DVI to HDMI adapter. HDMI port supports resolutions up to 2560x1440 @ 50Hz with a single HDMI display only
  • COMPATIBILITY - Docking station compatible with Windows 10, 8.x, 7, and XP systems. Plug and play driver installation via Windows Update. Not supported are Surface RT, macOS, and Linux. Wired Ethernet supports Gigabit speed. Dock does not charge host PC
  • RECOMMENDED USE - For use with web and productivity software; not recommended for gaming. Cannot be mixed with non-DisplayLink USB adapters. DisplayPort connections not supported. Does not support HDCP, will not playback encrypted or copy-protected content
  • 2 YEAR WARRANTY - We love our Plugable products, and hope you will too. This product is covered by a 24-month limited warranty as well as Seattle-based email support

Moread HDMI to VGA, Gold-Plated HDMI to VGA Adapter (Male to Female) for Computer, Desktop, Laptop, PC, Monitor, Projector, HDTV, Chromebook, Raspberry Pi, Roku, Xbox and More - Black

$7.99  in stock
2 new from $7.95
6 used from $7.35
Free shipping
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Amazon.com
as of May 23, 2020 7:23 am

Features

  • COMPACT DESIGN - The compact-designed portable Moread HDMI to VGA adapter connects a computer, desktop, laptop, or other devices with HDMI port to a monitor, projector, HDTV, or other devices with VGA port; Tuck this lightweight gadget into your bag or pocket to do a business presentation with your laptop and projector, or extend your desktop screen to a monitor or TV; A VGA cable is required (sold separately)
  • SUPERIOR STABILITY - Built-in advanced IC chip converts HDMI digital signal to VGA analog signal; It is NOT a bi-directional converter and cannot transmit signals from VGA to HDMI
  • INCREDIBLE PERFORMANCE - The HDMI male to VGA female converter supports resolutions up to [email protected] (1080p Full HD) including 720p, 1600x1200, 1280x1024 for high definition monitors or projectors; Gold plated HDMI connector resists corrosion and abrasion and improves the signal transmission performance; Molded strain relief increases cable durability
  • BROAD COMPATIBILITY - The HDMI-VGA adapter is compatible with computer, pc, desktop, laptop, ultrabook, notebook, Chromebook, Raspberry Pi, Intel Nuc, Roku, PS3, Xbox One, Xbox 360, Wii U, Set Top Box, TV BOX, or other devices with HDMI port; NOT compatible with Blu-ray player and devices with low-power HDMI ports such as SONY PS4, Apple MacBook Pro with Retina Display, Mac mini, and Apple TV
  • 1 Year WARRANTY - Exclusive Moread Unconditional 12-month Warranty ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely