Mac as wi-fi hotspot: how many devices can connect?

Solution 1:

On OSX Yosemite (beta 10.10.3), on MacBook Pro (13-inch, Mid 2012), today (2015-04-28), I've connected 15 different devices (Android, iOS, Win, OSX) via WiFi hotspot (sharing internet via Ethernet), and reported very low decline in internet bandwith with each new device connected.

Solution 2:

It can connect at max 7 devices, I have tried to connect more but wasn't able to.

Solution 3:

I regularly try connecting 27 Wi-Fi modules (ESP-12F) and find that typically around three or four don't connect. It's slightly different every time, so the limit is probably 24.

In my case I'm using a Mac Mini 2009 model to share the internet.