Choosing a projector for a smartphone

Everyone is used to thinking that a projector is a massive device with the help of which the image is broadcast on any plane. In the age of modern technology, more advanced devices with compact dimensions have appeared. Such projectors allow you to use them in conjunction with smartphones. We will tell you what a phone projector is and how to choose the right one.

A smartphone projector is a portable device that projects an image from a phone onto a large diagonal plane. A special feature of the video projector are matrix particles with LEDs. It is thanks to them that the device has become much smaller. Some mobile models fit in a bag or even a pocket. Mini cinema projectors for the screen are divided into such categories.

• LED devices. The advantage of the models is low energy consumption. The devices do not heat up during operation, they have a long service life and weigh up to 300 g. Such projectors for the phone are capable of displaying a picture with a diagonal of up to 1.5 m. The device is made using the innovative projection technology Digital Light Processing (DLP). The main feature of the technology is a mirror matrix consisting of an aluminum alloy with a high reflectance parameter. Devices equipped with DLP have high definition image transmission.
• LCD. Devices with this technology have a liquid crystal matrix that includes 3 colors - RGB.
• LcoS. The models are based on a combination of DLP and LCD technologies. The base consists of a liquid crystal matrix and is reflected, not translucent. The luminous flux from the mirror surface is directed to the plane with the image.
• Laser Devices have rays that go out of the projector and transmit the picture onto the plane.

Plane projectors are needed for many reasons.

• Making presentations to showcase projects and quarterly reports in offices.
• View content on the big screen. When broadcasting, it is necessary to darken the room, since the devices have a low brightness value (average 500 lumens).
• You can play games on the big screen through a mobile video projector. For greater effect, some users connect joysticks to their devices, which makes the device a full-fledged game console.
• Using the device while traveling. In this case, you can broadcast the image on the wall of the train compartment or on the top shelf.
• A mini projector can easily replace a regular TV. For example, if there is no money to buy equipment, the device is used to watch movies, TV series or favorite programs.
• If you rarely want to view a picture through a projector. For such a case, buying a large device is impractical, so it is better to choose a mobile device for your phone.

All portable devices presented below can be paired with Android and Iphone smartphones.

Key features of the projector:

• DLP matrix with a 300 lumen lamp;
• resolution 854x480 pixels;
• connectors USB, HDMI, mini jack 3.5 mm;
• power consumption 30 W;
• size 150x42x150 mm;
• weight 350 g;
• the presence of a mono speaker;
• battery 9000 mAh;
• the presence of a WI-FI module;
• projection distance up to 3 m;
• diagonal size up to 2.5 m;
• contrast ratio - 5000: 1.

Specifications:

• HD 720p resolution;
• the luminous flux of the lamp is 500 lm;
• lamp life 30,000 hours;
• 4-core processor with a frequency of 1.5 GHz;
• Android OS 4.42;
• 8000 mAh battery makes it possible to view the picture for 2 hours;
• Bluetooth;
• WI-FI;
• playback from memory cards or USB-media;
• stylish minimalistic design of the case;
• two speakers of 2 W each;
• 8GB onboard memory and expandable up to 64GB;
• lamp life up to 30,000 hours.

Features of the model:

• resolution 1280x800;
• contrast - 15,000: 1;
• the luminous flux of the lamp is 3600 lm;
• power 210 W;
• a large number of connectors for connecting devices;
• built-in mono speaker;
• WI-FI;
• the ability to broadcast an image with a diagonal of up to 8 m;
• size 302x82x237 mm;
• weight 2.5 kg.

The model can be used for demonstration in offices, as well as for watching videos at home. It should be noted that this model allows you to broadcast a picture even in daylight. The image does not fade.

Main characteristics of the device:

• many connectors for connecting other gadgets;
• WI-FI;
• Bluetooth;
• the ability to wired Ethernet RJ45;
• speakers 3 W + 3 W stereo;
• power consumption in operating mode - 140 W, in standby mode - 0.5 W;
• compact dimensions of the projector 252x108x140 mm;
• attractive design;
• the presence of a joystick and stand;
• image resolution Full HD 1920x1080;
• contrast ratio - 150,000: 1;
• lamp brightness - 2000 lm;
• Screen Share technology for mirroring;
• lamp life 20,000 hours.

Peculiarities:

• 4 ports for connecting various devices (console, computer, smartphone);
• a full charge of the battery lasts for 3 hours of viewing;
• the simple design of the metal case will appeal to lovers of minimalism;
• special shutter to protect the lens from dirt;
• DLP matrix with lamp up to 30 hours of operation;
• resolution 854x480 pixels;
• the ability to display on a plane with a diagonal of up to 3 m;
• luminous flux of the lamp - 150 lm;
• battery with power bank option;
• size 83x29x110 mm;
• weight 300 g.

The model has the following characteristics:

• the presence of a LED lamp with a long service life, brightness 150 lm;
• lamp work for 30,000 hours;
• use of the DLP matrix;
• resolution 854x480 pixels;
• the ability to display an image with a diagonal of up to 2.5 m;
• two HDMI connectors;
• WI-FI;
• autonomous work due to the battery;
• contrast ratio 1200: 1;
• device size 118x26x121 mm;
• weight 270 g.

The disadvantages of the model are considered to be low resolution, low lamp brightness, low sound power (1 W).

Features of the model:

• Full HD resolution;
• luminous flux brightness - 1200 lm;
• the ability to project onto a screen with a diagonal of 25-210 inches;
• distance of distance up to 4 m;
• the model is equipped with six picture modes;
• allows you to play games without delays and vague;
• autofocus, which adjusts sharpness and distortion itself;
• availability of all necessary connections;
• the device is equipped with a stereo system with several 3 W speakers and an 8 W subwoofer;
• an advantage is the feature of the case with a fan, which will not allow the device to overheat;
• the presence of fan grilles helps to improve the sound;
• service life up to 30,000 hours.

Specifications:

• compact size 8x8x8 cm;
• weight - 300 g;
• availability of a subscription to the IVI online cinema with access to many films, TV series and cartoons;
• screen resolution 640x480 pixels;
• creation of a screen with a diagonal of up to 149 inches;
• luminous flux brightness of only 35 lm;
• control from smartphones based on Android and Iphone;
• availability of Wi-Fi and Bluetooth;
• 32 GB memory card;
• built-in speaker;
• autonomous operation for 5 hours.

The main selection criteria when buying a mini projector for Android or Iphone are as follows.

1. Determine the purpose of the device.
2. Next, you need to find out the size of the future screen. The choice of the required power depends on this indicator. The calculation formula looks like this: X = 500xS (X is the power, S is the area of ​​the future screen).
3. It is also worth considering the type of lighting in the room where the projector will be used.
4. Choice of resolution. The image quality depends on the resolution. Some models have the characteristics of Full HD 1980x1080 pixels, which allows you to broadcast high-quality content.
5. Battery capacity. The larger it is, the longer the mini-projector will work. Each model has a different battery capacity. Therefore, the battery life is different.
6. The device itself is quite expensive, but you should not give preference to very cheap models. In this case, there is a risk of purchasing a low-quality product that does not meet expectations.
7. The presence of various connectors for connection. This is also worth paying attention to when buying. Mini projectors have both wired and wireless connections. It all depends on the model.
8. When choosing a portable projector, pay attention to the indicators of the projection range.
9. Low power consumption and normalization of brightness and structure.
10. Manufacturer. The main purchase criterion is the choice of the manufacturer. Before purchasing a device, you need to familiarize yourself with the models on the Internet, study the characteristics, read reviews.

If you follow all these points, you can choose a quality smartphone device that can replace a full-fledged projector. Mobile projectors for phones are gradually replacing large devices. Some models of mini-devices have excellent characteristics and are in no way inferior to full-fledged technology. In addition, projectors for smartphones can be connected to any other device.

There are the most advanced models with many possibilities and simple devices that are used in small rooms only for broadcasting images. Each user chooses his own model.

For an overview of the Vivitek Qumi Q38, see the following video.