Alleged manufacturer--Go to GlobalMarket.com, and look up 'Shenzhen YQT Electronic Technology Co., Ltd.'. ALSO, there are two downloadable APK files (for configuration, etc.) in Google Play. Search 'Rwatch'. The product listing pictures are green circles.
I bought one of these. It works fine, IF you have patience.
MY problems with the product, as I live in the United States of America, are:
1. Poor grammar makes many parts of the instruction sheet and software difficult to understand. This is a common problem with TOO MANY products coming from China.
2. If you want to answer a call on your phone, swipe down on the upper edge, and tap to turn off Bluetooth, remember? This SHOULD be an automatic function so that the device used to answer a call keeps control of the call until it is finished.
3. Their website is only in CHINESE. This (among others) is an unprofessional mistake, and would have been prevented by preparation BEFORE their products were to be released for export.
4. Their advertising/product literature should contain links to software/websites.
If ANY manufacturer in China (or any other country in Asia) wants repeat business and significant market penetration in the USA, they should make sure there is a separate website and product software option for users to choose US-English. Instructions and website text should be written by someone who is FLUENT in US-English (and not someone who barely passed English in school OR using a translation site). There should be a clear separation and option to choose either US-English and Chinese text (in this case), on the device and website. The same applies to any other predominant language. Translation sites online do NOT work well, in all too many cases.
Personally, I am using this product as an inexpensive introduction to wearable technology (with my Sony Galaxy Note 4/AT&T VERSION). I have no intention of buying this brand again, unless there are significant improvements to features, flexibility, instructions, user information, software/firmware updates, and the FLUENCY of its website/software/instructions.
I WILL buy a more expensive, and feature-filled watch in 2015, to go with a new Samsung Galaxy Note 5.
I have never submitted a fully documented report to a client with anything other than impeccable grammar and spelling. It is a point of personal and professional pride. Anything less would be akin to halitosis and an insult to the recipient. We, as buyers, should expect the same consideration from overseas manufacturers.
I hope this reply is of help to you. By the way, I always allow for language gaps between individuals, and have infinite patience in that regard.. <wink>
Enjoy your new toy.