I saw this on the front page of the Gearbest mobile app. Only available for 200 units.
When I went on the desktop website, it was listed with a different coupon 'OnePlus5' for the price of $579.99.
The app shows the coupon 'OnePlus4G' for the price of USD 489.99. When I used the coupon, this converted to AUD 665.95 which is about $20 over the actual conversion.
I am not sure what Gearbest is doing here but it still seems to be a good price.
when i did it the code only worked for the 6gb ram version. you linked the 8gb ram