Steps

1. Minimum
2. The goal is that its characteristics are very good at the time of purchase and last over time, all at a fair price
3. For example, currently in 2022, the Wanbo T6Max 16GB+2GB for 300 euros (after reduction)
4. - Recommended specifications:
5. Android: 9 (almost the latest, so no compatibility issues)
6. Storage: 16GB (enough for necessary applications)
7. RAM: 2GB (minimum for normal use, but better 4GB)
8. Bluetooth: 5.0 (the latest, so low consumption and better worn)
9. WiFi: AC (the last one, so as not to have speed problems or other)
10. Native resolution: 1920x1080 pixels (1080p is the interesting minimum)
11. > We are talking about native, no recalculation or other software manipulation, which would not render well
12. Speakers: 2 x 5W (enough, otherwise speakers or sound bar required)
13. 550 ANSI Lumens (the higher the value, the less you will have to be in the dark)
14. Electric focus (via remote control)
15. Wall and ceiling projection
16. Trapezoidal correction at 4 points (mandatory so as not to have to center it)
17. electronic zoom
18. 16:9 aspect ratio
19. /!\ Take a Foldable 360° Projector Tripod and/or a Motorized Projection Screen
20. Fans
21. There is a good chance that the basic ones will be noisy and not efficient
22. The documentation and after-sales service are generally not very helpful in changing them
23. It is therefore necessary to open cautiously, knowing that the guarantee risks being lost, to replace them with Noctua of identical size
24. For example, the "Noctua NF-B9 redux-1600 PWM" in 90mm and or the "Noctua NF-R8 redux-1800 PWM" in 80mm
25. > Knowing that it is not necessarily possible to change them easily, because they are not quickly accessible, particular size, etc
26. Screen Ratio
27. It is important when using the "4-Point Keystone Correction" that the circle is as perfect as possible
28. > Which allows you to have a 16:9 ratio (remember to put small marks in the 4 corners if it goes wrong, like a piece of tape)
29. https://www.choisir-videoprojecteur.fr/calculateurs
30. For example: 1.90m wide x 1.07m high