Can't use Foursquare because it needs Google Play Services, which "is not supported by your device" I've installed Foursquare, but it does not start, instead I get the following error:


  Google Play Services, which some of your applications rely on, is not supported by your device.


I don't know what does this mean and how can I solve this issue to use the application.
I'm using Chinese phone AMOI N 821 android 4.1.1. I live in Russia.

What should I do?
Google Play Services provides a "backbone" of sorts not just for Google apps but other apps as well. This is part of the way that Google is letting users and apps get to more "modern" Android features without having to wait for carriers to update their version of the OS.

I'm guessing that the phone you're using didn't come with Google apps installed.

See if you can install Google Play Services directly. 

If so, you should be good to go.

If not, you're probably out of luck.