Originally Posted by
sati01 Nokia X can't access Google services, except the public APIs. All the Google services were replaced by Microsoft services: bing, outlook, onedrive, xbox video, skype, etc.
Apps that use Google services don't work, developers have to adapt them to the platform. Nokia expose similar services with similar APIs, developers have to use Nokia APIs to replace Google APIs.
There is no license fee for AOSP, It's totally free and open source, but you don't have access to Google services. To get the Google services OEMs have to enter in the Open Handset Alliance.
In China It doesn't matter because Google is blocked, in the rest of the world?, well, we'll see. It seems that in India the Nokia X is doing well, but let's see in a couple of months when the hype dies.
Samsung announced three wearables, Gear 2, Gear Neo and Gear Fit. Gear 2 and Gear Neo use Tizen, which is based on Linux, 100% free and open source, and It's not a RTOS.
According to the CEO of Samsung they want Tizen everywhere, cameras, watches, tv, laptops, tablets, smartphones and cars. By now they have cameras and watches, TVs are coming.
For the Gear Fit, which is a fitness band they used a simpler OS and RTOS, Nucleus as you said.