(Pocket-lint) - OnePlus will announce its OnePlus 9 Series on 23 March, but we already have a very good indication as to what the OnePlus 9 Pro model will look like when it is revealed. 

Ishan Agarwal - who has a good track record when it comes to leaks - tweeted some 4K renders of the OnePlus 9 Pro 5G in the three colour options he claims it is coming in: Astral Black, Morning Mist and Pine Green.

OnePlus then tweeted some more images from its official Twitter account revealing the OnePlus 9 Pro 5G in Morning Mist.

The rear of all three colours is shown off in Agarwal's tweeted image, revealing the officially confirmed Hasselblad partnership on the camera housing. The image also shows the device off from the side, and a slightly angled view of the front. The OnePlus tweet supports Agarwal's images, though the screen is black so it doesn't give much away in terms of the display.

According to Agarwal, the OnePlus 9 Pro 5G has only a slightly curved display - the standard OnePlus 9 is expected to have a flat display - and it is claimed to have a matt finish, though the OnePlus images of the Morning Mist colour look glossy to us and OnePlus says reflective glass in its tweet.

Other rumours surrounding the OnePlus 9 Pro have suggested it will feature a punch hole front camera - shown in Agarwal's leaked image but not the OnePlus images - and it will feature a 6.7-inch display, thought to have a Quad HD+ resolution and 120Hz refresh rate. It is also claimed to run on the Qualcomm Snapdragon 888 chipset, have a 4500mAh battery and support 65W fast charging.

You can read all about the rumours surrounding the OnePlus 9 Pro and standard OnePlus 9 in our separate rumour feature. We've also written a comparison feature on how they are expected to compare. OnePlus has confirmed it will announce the OnePlus 9 on 23 March.

Writing by Britta O'Boyle.