Samsung Galaxy C7 comes in Grey, Silver, Pink Gold and Gold colour variants and will go on sale in China soon.
The smartphone runs on Android Marshmallow and houses a Fingerprint scanner as well.
The Samsung Galaxy C5 offers a 5.2-inch display with full HD (1920 x 1080 pixels) Super AMOLED display.
However, OnePlus has not officially revealed the date yet.
Lenovo had launched Zuk Z2 Pro in China in April last month.
The smartphone comes in two different colors- White, and Gold.
The Zenfone 3 will be unveiled on May 30 along with Zenfone 3 Deluxe and Zenfone 3 Max.
Only registered users can participate in today's flash sale.
The press renders show a gold colour variant of Samsung Galaxy C5.
The new Meizu M3 Metal was also recently spotted on the website of Chinese certification agency, TENAA.