I would like to thank mr. Luo Peter about the wonderfull watch - H99. It was delivered much earlier than the expected end date and at very affordable price. The watch came with more ram and memory than expected, It works very well with Bulgarian GSM operator - Yettel (it can work also without sim card). The watch itself looks very good, it has very  beautiful 1.75 inch amoled display, good wifi connection and all installed apps (such as facebook,Messenger,Whatsup,Google assistant,Google maps,TomTom amigo -requires internet, QR code reader,Youtube, Heartrate, Blood Oxygen and many others) from google play store work without problems so far.I was even able to project youtube videos on my 40-inch Sony TV. The things that should be improved are the camera- which is very good for video calls, but expected it to make higher resolution videos than 640x480 and the battery which is 1990 mah and lasts two days at most - but if you play much more with the watch it can drain for several hours.    

Awesome product,quality build like very expensive brand.Package is great for retail.Very fast device and smooth,sharp picture on Amoled display.Just look and feel like more expensive products!Even price is low,affordable!