(Reuters) – Samsung Electronics Co Ltd is developing a smartwatch that can make or receive calls without having to be tethered to a mobile phone, the Wall Street Journal reported on Friday. Samsung, the worlds largest maker of smartphones, is in discussions with unidentified U.S., Korean and European telecommunications carriers about a so-called watch-phone that it hopes to unveil between June and July, the Journal reported, citing people familiar with the companys plans. The current crop of smartwatches, such as Samsungs own Galaxy Gear, have to be linked to a phone to receive and send messages and perform other basic functions. But the proposed watch-phone, which will run on Samsungs Tizen operating software, can take photos and handle email independently and will come equipped with a heart monitor, the newspaper reported.