You might have already seen the Samsung smart watch the Galaxy Gear 2, you can make calls using the Gear 2 only if it is paired with the smartphone (calls via the smartphone). And now Samsung is working on a standalone smartwatch that will be capable enough to make a call / receive a call without the need of a smartphone.
Rumors suggest the new standalone Smartwatch could be called the Samsung SOLO. Most probably just like as seen on the Gear 2 the new watch could also run on the Tizen wearable operating system.
As per the report published on wall street journal the new watch will be able to make / receive calls. It will house with a SIM slot. The watch will also include a (single) camera. Other common features like Bluetooth, GPS and probably Wi-Fi will come built in. The heart rate monitor might also get included.
The good part about the Samsung standalone watch is that it can be used as a fitness device and as a phone, however browsing on the watch many not be that comfortable, and of course there will be a lot of limitations as compared with a smartphone. There are many standalone (Chinese) smart watches available in the market, not sure yet how users will respond to this technology.