Mini Projector also call Pico Projector is a Portable Projector that is as small as your palm. It is so small that it can fit your small bag or in a briefcase. It is a very good company of a laptop for business meeting.
Mini projector can also be used as a movie projector for camping, in a bedroom or hotel room, as it's very easy to set up and can project to the wall. It's ultra portable, usually weigh less than 500 grams.
Some of them have battery built-in, some do not. Some have a usb player built-in while others just act as a usb power output. Please pay attention when choosing the mini projector.
Brightness can range from 150 lumens to 1000 lumens. Price start from $400 only.
With the use of a wireless dongle, you can turn the projector into wireless too. It allows you to transmit picture, document wirelessly. If you wish to mirror windows desktop wirelessly use a Miracast dongle. Use Chromecast or Apple TV for watching Netflix or Youtube if you want to use it for watching movies.
For 1 to 3 people in a small room where the lighting can be controlled, a 300 lumens projector should be sufficient.
For 4 to 5 people in a small room where the lighting can be controlled, a 700 lumens projector is recommend.
For 6 to 7 people in a small room where the lighting can be controlled, a 800 lumens projector is recommend.
For 8 to 10 people in a small room where the lighting can be controlled a 1000 lumens projector is recommend.
How do you connect your Mac to the mini projector?
Well, it depends on which Apple product it is. Most of the mini projector come with a HDMI port. As long as you can convert your Mac to HDMI signal using adapter, the projector will display the image. e.g For new Apple Device such as Latest 2018 Mac Book, Mac Book Pro, Mac Book Air, they all equip with USB C (Thunderbolt 3) port. Old Apple device such as previous version of Macbook Book, Pro or Air uses Display port (Thunderbolt 2).
As long as you use a USB C to HDMI cable or Display port to HDMI cable, and input it into the projector's HDMI port, the projector will display the image.
How do you connect Android Tablet or iPhone to mini projector?
New tablet and phone nowadays equip with a usb c port on the bottom, with the use of a USB C to HDMI Cable and connect it the projector, the projector will display the image.
Is there any good for those mini projector that is less than $60 or $100 or $150?
There is no definite answer, you pretty much pay what you get for. Those mini projector around that price bracket are usually non brand OEM. It usually have false claim on lumens, e.g stating 7000 lumens, in fact when measure accurately using a professional device, it may only comes down to 40 lumens. When it state that it have resolution of 4k or Full Hd, in fact, the actual resolution maybe less than 320*240 (Any projector we recommended below has at least 5 times to 13 times higher resolution).
It may be cheap to buy at the beginning for fun or as your first projector. But if you need something in the long term, please buy a proper Mini Projector from a proper Projector's brand.