Read the statement by Michael Teeuw here.
What's the best RasPi to use to make a magic mirror at the moment and why?
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Hello, Im looking forward to start a magic mirror project. What would be the best raspberry pi to buy in order to do it.
My aim is to build a magic mirror with microphone and movement sensors. With a power cord directly connected to the wall.
#raspberrypi - 
@DiogoSekeira 4 or 3… newest, most powerful first, 4… on a tight budget, go to 3.
as u decide what to add, 3 will run out of power 1st…
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it all depends on what you wanted to do with it
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running MagicMirror without complex module RPI2 or RPI3 could be ok
sample of complex module:- displaying video (youtube, TV) take a lot of ressource
 - module with a lot of animated picture (take a lot of cpu time)
 - personnal assistant (Google Assistant / alexa) take a lot of RAM
 - –> it’s limited +/- to default module
 
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running MagicMirror with some complex module: RPI3B+ (minimal) / RPI4 (is really better) version: 2Gb min
- you can do practically what you want ;)
 - playing video/TV
 - assistants
 - animated picture
 - any module as you want
 
 
For me the good choice for a mirror is RPI4 (I have 2Gb version)
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@sdetweil What do you mean by out of power? i mean to use it 24/7 plugged.
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@DiogoSekeira CPU power to run apps. same thing @Bugsounet said
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@Bugsounet I was aiming for a low budget, and i can get the RPI3B+ at 40 bucks, but the RPI4 at 70, so if the RPI3B+ could fulfill the necessities that I need then i would rather have that one.
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what do you want to do with it ?
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@sdetweil @Bugsounet oh i get it now. I just ment to run magic mirror with youtube, calendar, weather forecast and try to implement voice activation and or movement sensors
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youtube without voice activating ??? not sure it’s possible, or so just on start the mirror but it’s ridiculus
In all case, i think RPI3B+ can works for you :)
@sdetweil ? - 
@Bugsounet Yes i mean to use voice activation. If im not able to will just use buttons of some sort or a keyboard, wich is kind of lame. But right now im just looking at what model can fully satisfy my needs.
 
