#40

PUTRIMS

PUTRIMS S28 Mini WiFi Projector

Name: S28 Mini WiFi Projector
Brand: PUTRIMS
SKU: B0FKTGPJ7H
Price: 109.99 JPY
Availability: InStock
Rating: 3.3125 (1 reviews)

Rating

Model: S28

$109.99(incl. tax)Amazon price as of 2025-09-22

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Product Overview

The PUTRIMS S28 Mini WiFi Projector is a portable projector designed for home and outdoor movie experiences. It features WiFi and Bluetooth connectivity, a 145° adjustable stand, electric focus, and auto keystone correction. With support for 1080P Full HD and 300 ANSI lumens, it delivers vivid colors and crisp picture quality. It includes multiple ports like HDMI, USB, and audio output, making it compatible with various devices. Ideal for creating an immersive viewing experience at home or on the go.

Product Specifications

Brightness

300ANSI Lumens

Resolution

1280 x 720pixels

Contrast Ratio

18,000:1

Lamp Life

-hours

Projection Distance

0.8-4m

Throw Ratio

1.36 : 1

Keystone Correction

±30° auto / ±50° manualdegrees

Input Ports

HDMI, USB, 3.5mm audio

Weight

-kg

3D Support

Size & Weight

Weight

1.76 pounds

Hight

11.18 inches

Width

8.94 inches

Depth

7.91 inches

Features

Automatic Keystone Correction Function

Feature Description

A function that automatically corrects trapezoidal distortion in the projected image. Even when projecting from an angle, the image is automatically adjusted to a rectangular shape, eliminating manual adjustments. Ideal for quick setup in various rooms or locations without tedious adjustments.

About This Product

The automatic keystone correction (±30° auto / ±50° manual) instantly adjusts the image to a perfect rectangle. This feature is beneficial for quick setups in various locations, ensuring a properly aligned image without manual adjustments. It works best when the projector is facing the wall at an angle of no more than 30 degrees in vertical direction.

Screen Mirroring Function

Feature Description

A function that wirelessly mirrors the screen of a smartphone or tablet onto the projector. You can easily share photos, videos, or presentations stored on your mobile device on a large screen without cables. Convenient for family gatherings or casual presentations.

About This Product

This projector supports wireless screen mirroring through Miracast and Airplay, as well as wired screen mirroring. This allows for seamless streaming from iOS, Android, and Windows devices, making it easy to share content from your phone or tablet on a larger screen. However, due to HDCP copyright restrictions, streaming services like Netflix and Disney+ require a TV stick for playback.

Built-in Speaker Function

Feature Description

A function that incorporates speakers within the projector itself. You can enjoy video content with audio without connecting external speakers. Useful in situations where you want to quickly set up a viewing environment without the hassle of connecting external audio devices.

About This Product

The built-in speaker allows for audio playback without the need for external speakers. This is convenient for portable setups and quick viewing sessions. However, the projector does not support Dolby Sound, DTS, 5.1-channel, HDMI CEC, or ARC, so make sure to turn off any Dolby settings on your connected devices.

Zoom Function

Feature Description

A function that allows you to enlarge or reduce the projected image size without physically moving the projector. Adjust the image size to fit your screen or wall size without moving the projector back and forth. Useful when space is limited.

About This Product

The 100%–50% zoom feature lets you adjust the image size without moving the projector. This provides flexibility in various room sizes and makes it easy to find the perfect fit for your screen or wall. This is especially useful when space is limited or for fine-tuning the image size.

Focus Adjustment Function

Feature Description

A function that allows you to sharpen the image. Enjoy a crisp, clear picture from various projection distances, ensuring comfortable viewing. Easy to adjust and produces sharp imaging.

About This Product

The electric focus function allows you to sharpen the image easily. Use within 1.23–3m range. Place projector near table edge, avoid obstructions in front. Ensure it faces screen directly—side angles or off-axis setup may cause blur. Turn off auto keystone/focus and adjust manually (F+/F-). Clean the lens if needed.

Ceiling Mount Function

Feature Description

A function designed to support installation on the ceiling. The projector can be safely and securely mounted on the ceiling. Space-saving and free layout.

About This Product

This projector can be mounted on the ceiling, providing a permanent and space-saving setup. This is ideal for home theaters and presentation rooms, offering a clean and professional look. The projector easily adapts to your space whether mounted on the ceiling, placed on a tabletop, or set on a stand.

SHOPSTAFF Rating Score

#40

Ranked #40 out of 100 products in Category

3.3

Overall Rating

The PUTRIMS S28 is a budget-friendly mini projector suitable for casual home entertainment. Its portability and ease of setup make it convenient for occasional use. However, its limited brightness and resolution may not satisfy users seeking high-end performance. Predicted usage period is around 2-3 years with proper care.

Brightness (Lumens)

2.5

Rating Criteria Explanation

Brightness, measured in lumens, determines how well you can see the projected image in different lighting conditions. Higher lumens are essential for well-lit rooms, while lower lumens might suffice for dark environments. Consider the typical lighting conditions of your viewing space. A projector with insufficient brightness will result in a washed-out image, especially when there's ambient light. Look for at least 2000 lumens for a moderately lit room and 3000+ lumens for brighter environments. Pay attention to both ANSI lumens (a standardized measurement) and 'light source' lumens, as some manufacturers may inflate the latter. True ANSI lumens provide a more accurate representation of perceived brightness.

Rating Comments

With 300 ANSI lumens, this projector is best suited for dark environments. The brightness is sufficient for small screen projections in dimly lit rooms, but may struggle in brighter settings. Consider light control for optimal viewing.

Resolution

3.0

Rating Criteria Explanation

Resolution dictates the level of detail and clarity in the projected image. Native resolution is the actual number of pixels the projector can display. Full HD 1080p (1920x1080) is a good starting point for most users, providing a sharp and detailed picture for movies and games. If you want even greater detail and plan to project onto a large screen, consider a 4K (3840x2160) projector. Avoid projectors that claim to support 1080p but have a lower native resolution, as they will upscale the image, resulting in a softer, less detailed picture. Pay close attention to the 'native' resolution specification.

Rating Comments

The native resolution of 1280 x 720 provides adequate clarity for standard viewing. While it supports 1080P, the actual image quality will be limited by the native resolution. This is suitable for casual viewing but may lack detail for discerning viewers.

Contrast Ratio

4.0

Rating Criteria Explanation

Contrast ratio is the difference between the darkest black and the brightest white the projector can produce. A higher contrast ratio results in a more vibrant and realistic image with better blacks and brighter whites. This improves the overall depth and richness of the picture. Look for a contrast ratio of at least 1000:1, but ideally, aim for 2000:1 or higher for a truly immersive viewing experience. Dynamic contrast ratios are often inflated by manufacturers, so focus on the 'native' or 'on/off' contrast ratio when comparing projectors.

Rating Comments

The 18,000:1 contrast ratio contributes to good image depth and clarity. This high contrast ratio helps in producing better blacks and brighter whites, enhancing the overall viewing experience, especially in darker scenes.

Projection Technology (DLP, LCD, LED)

3.0

Rating Criteria Explanation

Different projection technologies offer varying strengths and weaknesses. DLP (Digital Light Processing) projectors typically offer better contrast ratios and sharper images, but some people may experience a 'rainbow effect' (brief flashes of color). LCD (Liquid Crystal Display) projectors generally have better color accuracy and are less prone to the rainbow effect, but may have lower contrast ratios. LED projectors are energy-efficient and have long lifespans, often with good color performance, but may not be as bright as DLP or LCD projectors at the same price point. Consider the pros and cons of each technology and choose the one that best suits your viewing preferences and needs.

Rating Comments

Utilizing 3LCD technology, this projector aims to maximize light efficiency and deliver vibrant visuals. The fully enclosed optical system helps prevent common screen issues, ensuring long-term clarity and consistent performance.

Connectivity Options

4.0

Rating Criteria Explanation

Ensure the projector has the necessary connectivity options to connect to your devices. HDMI ports are essential for connecting to Blu-ray players, gaming consoles, and streaming devices. USB ports allow you to play media files directly from USB drives. VGA ports are useful for connecting older devices. Audio output options (such as 3.5mm headphone jack or RCA outputs) are important for connecting to external speakers. Wi-Fi connectivity allows for wireless streaming and screen mirroring. Bluetooth connectivity enables you to connect wireless speakers or headphones. Consider the devices you plan to connect to the projector and make sure it has the appropriate ports.

Rating Comments

Featuring 5G+2.4G WiFi, Bluetooth 5.2, HDMI, USB, and 3.5mm audio output ports, this projector offers versatile connectivity. Wireless screen mirroring and wired options provide seamless integration with various devices.

Keystone Correction and Lens Shift

4.0

Rating Criteria Explanation

Keystone correction allows you to correct distorted images when the projector is not perfectly aligned with the screen. Digital keystone correction can introduce some image degradation, so optical keystone correction is generally preferred. Lens shift allows you to physically move the lens up, down, left, or right without moving the projector itself, providing more flexibility in placement and avoiding image distortion. Horizontal and vertical keystone correction is crucial if you cannot position the projector directly in front of the screen. Lens shift is a valuable feature for more complex installations.

Rating Comments

The auto keystone correction (±30° auto / ±50° manual) quickly adjusts the image to a perfect rectangle. This feature simplifies setup and ensures a properly aligned image, even when the projector is tilted.

Manufacturer Reliability and Warranty

2.0

Rating Criteria Explanation

The manufacturer's reputation and the length/terms of the warranty are crucial indicators of product reliability. A reputable manufacturer is more likely to produce a higher-quality product and provide better customer support. A longer warranty period provides peace of mind, knowing that you're covered in case of defects or malfunctions. Research the manufacturer's reviews and customer support reputation. Pay attention to the specific terms of the warranty, including what is covered and any limitations. A strong warranty demonstrates the manufacturer's confidence in their product.

Rating Comments

PUTRIMS is an emerging brand, so long-term reliability is uncertain. However, the 2-year money-back guarantee, 3-year repair coverage, and lifetime technical assistance provide some reassurance for potential buyers.

Cost Performance

4.0

Rating Criteria Explanation

Ultimately, the best projector is the one that offers the best balance of features and performance for your budget. Consider all the factors mentioned above (brightness, resolution, contrast ratio, technology, connectivity, and features) and compare different models within your price range. Don't just focus on the cheapest option; instead, look for the projector that provides the most value for your money. Read reviews and compare specifications carefully to make an informed decision. Sometimes, spending a little more can get you significantly better performance and longevity.

Rating Comments

At $139.99, this mini projector offers good value for its features. The combination of portability, wireless connectivity, and decent image quality makes it an attractive option for budget-conscious consumers seeking a casual viewing experience.

Brand & Manufacturer Details

PUTRIMS

PUTRIMS is dedicated to providing customers with an exceptional shopping experience and immersive big-screen experience.

Considerations

Streaming services like Netflix and Disney+ require a TV stick
Not battery-powered, must be plugged in during use
Ensure proper ventilation to prevent overheating

Recommended For

Casual home users
Users needing a portable projector for occasional use
Users with small viewing spaces

Not Recommended For

Users needing high brightness for large screens
Users requiring native 4K resolution
none in particular

Suitable For

Home movie nights in dark rooms
Gaming sessions in small spaces
Outdoor movie nights (with limited ambient light)

Not Suitable For

Large conference rooms with high ambient light
Outdoor use in direct sunlight
none in particular

Frequently Asked Questions (FAQ)

Q.Can I use streaming services like Netflix or Disney+ with this projector?

A.Due to HDCP copyright restrictions, you may need to use a TV stick (sold separately) to stream content from services like Netflix and Disney+. The projector itself may not directly support wireless mirroring from your phone for these services.

Q.Can I use streaming services like Netflix or Disney+ with this projector?

Q.Does this projector have a built-in battery?

A.No, this projector is not battery-powered and needs to be plugged in during use.

Q.Does this projector have a built-in battery?

A.No, this projector is not battery-powered and needs to be plugged in during use.

Q.What kind of connectivity options does this projector offer?

A.This projector features HDMI, USB, and 3.5mm audio output ports, making it compatible with phones, laptops, PCs, TV sticks, PS5, or Switch. It also supports both 5G and 2.4G WiFi, as well as Bluetooth 5.2.

Q.What kind of connectivity options does this projector offer?

Q.What should I do if I have issues with the projector, such as with the focus or keystone correction?

A.For focus issues, make sure the projector is within the 1.23–3m range, facing the screen directly without obstructions. You can manually adjust the focus (F+/F-) after turning off auto keystone/focus. If problems persist, contact the provided support email. The projector has auto keystone correction that works best when the projector is facing the wall at an angle of no more than 30 degrees vertically.

Q.What should I do if I have issues with the projector, such as with the focus or keystone correction?

Q.What if I'm having trouble connecting to WiFi?

A.First, try using a mobile hotspot to test the WiFi and ensure the projector is within 5 meters of the router. Avoid any walls blocking the signal. You might also try disabling 2.4G/5G band merging and connect to only one band. If you're using a WiFi 6 router, try turning off WiFi 6. As a last resort, reset the projector in Settings.

Q.What if I'm having trouble connecting to WiFi?

Q.What is the staff confirmation on the picture quality and ease of use?

A.Staff confirmation indicates that the picture quality is generally considered bright, crisp, and vivid, and the setup is easy. Some staff confirmation notes that it works perfectly in small rooms and is easy to take anywhere.

Q.What is the staff confirmation on the picture quality and ease of use?

Q.What should I do if there is no sound when playing movies?

A.The projector does not support Dolby Sound, DTS, 5.1-channel, HDMI CEC, or ARC. Make sure to turn off any Dolby settings on your connected devices. Also, try different videos or speakers, as some Bluetooth speakers may not work well with the projector.

Q.What should I do if there is no sound when playing movies?

Q.Can I adjust the projection angle?

A.Yes, the projector has a 145° adjustable stand for better viewing angles.

Q.Can I adjust the projection angle?

A.Yes, the projector has a 145° adjustable stand for better viewing angles.

Q.Does this projector come with apps like Netflix or YouTube pre-installed?

A.According to staff confirmation, the projector does not come with pre-installed apps like Netflix or YouTube. You may need to connect an external device, like a TV stick, to access these services.

Q.Does this projector come with apps like Netflix or YouTube pre-installed?

A.According to staff confirmation, the projector does not come with pre-installed apps like Netflix or YouTube. You may need to connect an external device, like a TV stick, to access these services.

SHOPSTAFF Rating Ranking

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Brightness	3000 ANSI Lumens	Resolution	3840 x 2160 pixels
Contrast Ratio	2000 :1	Lamp Life	- hours
Projection Distance	- m	Throw Ratio	0.9–1.5:1
Keystone Correction	- degrees	Input Ports	Bluetooth, Ethernet, HDMI, USB, Wi-Fi
Weight	6.3 kg	3D Support	Yes

Automatic Keystone Correction FunctionScreen Mirroring FunctionBuilt-in Speaker FunctionZoom FunctionFocus Adjustment FunctionCeiling Mount Function

4.7Overall Rating

4.7Brightness (Lumens)

5.0Resolution

4.5Contrast Ratio

5.0Projection Technology (DLP, LCD, LED)

4.9Connectivity Options

4.7Keystone Correction and Lens Shift

4.3Manufacturer Reliability and Warranty

4.2Cost Performance

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Epson Pro EX11000: 4,600 Lumens, 1080p, Wireless Laser Projector with Miracast and 16W Built-in Speaker.

Brightness	4600 ANSI Lumens	Resolution	1920 x 1080 pixels
Contrast Ratio	- :1	Lamp Life	20000 hours
Projection Distance	- m	Throw Ratio	1 - 1.6x
Keystone Correction	Auto vertical degrees	Input Ports	2 HDMI, USB
Weight	4.3 kg	3D Support	-

Automatic Keystone Correction FunctionScreen Mirroring FunctionBuilt-in Speaker FunctionZoom FunctionFocus Adjustment FunctionCeiling Mount Function

4.5Overall Rating

4.8Brightness (Lumens)

4.5Resolution

4.0Contrast Ratio

4.5Projection Technology (DLP, LCD, LED)

4.7Connectivity Options

4.3Keystone Correction and Lens Shift

4.5Manufacturer Reliability and Warranty

4.3Cost Performance

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1500 ANSI Lumens, Netflix-licensed, Dolby Audio, WiFi 6, 2-Way Bluetooth, Auto Focus & Keystone projector.

Brightness	1500 ANSI Lumens	Resolution	1920 x 1080 pixels
Contrast Ratio	25,000 :1	Lamp Life	- hours
Projection Distance	- m	Throw Ratio	1.3:1
Keystone Correction	Auto degrees	Input Ports	2 HDMI, 1 USB, 3.5mm Jack
Weight	- kg	3D Support	No

Automatic Keystone Correction FunctionScreen Mirroring FunctionBuilt-in Speaker FunctionZoom FunctionFocus Adjustment FunctionCeiling Mount Function

4.1Overall Rating

4.0Brightness (Lumens)

4.5Resolution

4.3Contrast Ratio

3.0Projection Technology (DLP, LCD, LED)

4.7Connectivity Options

4.6Keystone Correction and Lens Shift

3.5Manufacturer Reliability and Warranty

4.5Cost Performance

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$399.97(incl. tax)Amazon price as of 2025-09-22

2000 ANSI Netflix Officially Licensed 4K Full HD Outdoor Projector with Wifi and Bluetooth, Built-in Apps.

Brightness	2000 ANSI Lumens	Resolution	1920 x 1080 pixels
Contrast Ratio	- :1	Lamp Life	- hours
Projection Distance	- m	Throw Ratio	-
Keystone Correction	Auto degrees	Input Ports	3.5mm Jack, Bluetooth, HDMI, USB, Wi-Fi
Weight	- kg	3D Support	-

Automatic Keystone Correction FunctionScreen Mirroring FunctionBuilt-in Speaker FunctionZoom FunctionFocus Adjustment FunctionCeiling Mount Function

3.9Overall Rating

4.0Brightness (Lumens)

4.5Resolution

3.5Contrast Ratio

3.0Projection Technology (DLP, LCD, LED)

4.8Connectivity Options

4.3Keystone Correction and Lens Shift

3.0Manufacturer Reliability and Warranty

4.0Cost Performance

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2000 ANSI/ Official-NetfIix/360°Stand Outdoor Projector

$299.99(incl. tax)Amazon price as of 2025-09-22

2000 ANSI Lumens, 360° Stand, Official NetfIix, Auto Focus, Keystone, 4K Support, 36W Dolby Audio, 500'' Display

Brightness	2000 ANSI Lumens	Resolution	1920 x 1080 pixels
Contrast Ratio	50000 :1	Lamp Life	100,000 hours
Projection Distance	4-25 ft m	Throw Ratio	1:1
Keystone Correction	Auto degrees	Input Ports	HDMI, USB, AV, 3.5mm Audio Jack
Weight	3.96 pounds kg	3D Support	-

Automatic Keystone Correction FunctionScreen Mirroring FunctionBuilt-in Speaker FunctionZoom FunctionFocus Adjustment FunctionCeiling Mount Function

3.9Overall Rating

4.0Brightness (Lumens)

3.8Resolution

4.2Contrast Ratio

3.0Projection Technology (DLP, LCD, LED)

4.5Connectivity Options

4.3Keystone Correction and Lens Shift

3.0Manufacturer Reliability and Warranty

4.0Cost Performance

View Details Buy on Amazon Report Content Error

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PUTRIMS S28 Mini WiFi Projector

Product Overview

Product Images

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For