As usual, running up to a major announcement of a flagship smartphone, there is a barrage of leaks and rumours. The pas day has ramped things up considerably following an Israeli publication sharing promotional materials. These things are not 100% confirmed but based on all the other rumours they appear to be quite believable.

We already knew that the Mate 20 Pro would come with a larger than 4000mAh battery, rumours suggested 4,200mAh  and this leak confirms it. The normal Mate 20 will feature a 4,000mAh battery that will offer 21 per cent better battery life than the predecessor Mate 10 smartphone from last year.

According to the leaked photos which were posted on Weibo last week the Huawei Mate 20 is expected to come with graphene-related cooling. This cooling has already been reported to arrive on the Honor Magic 2 and it is quite logical that the Huawei Mate 20 will feature the same.

To compliment this fancy new battery technology you the phones will feature Super Charge 2.0 which is a 40w fast charge allowing you to get 70% battery in just 30 mins charging. The Huawei Mate 20 phones will be the first phones from Huawei to feature 15W wireless charging.

The Mate 20 and Mate 20 Pro will both feature 24-megapixel selfie camera. The triple camera setup that we know is arriving for the Pro model will use an ultra wide-angle lens rather than a telephoto lens found on the P20 Pro. I loved the wide angle lens on the LG V20 so it will be great to try this out. The NPU used for AI will be used for a smart zoom and can detect moving object and automatically focus on it.

There will also be a HiVision feature arriving on Mate 20 and 20 Pro and will work like Google Lens for searching text, goods, scenic spots and so on by pointing the camera on any object.

Original rumours suggested a teardrop notch, but it will actually be wider due to the necessary sensors for 3D facial recognition. Huawei’s 3D Face Unlock feature offers unlock speed of 500ms and has a failure rate of 1:1000000. On the other side, the Mate 20 will support 2D facial recognition. The Mate 20 Pro will be also equipped with in-display fingerprint scanner whereas the Mate 20 will feature a regular rear-mounted fingerprint sensor.

Huawei is rolling out another feature called  Bone Voice ID that can instantly unlock the smartphone by detecting the user's voice. It can work accurately even in noisy surroundings. I will reserve judgement on this, and I am sure it will get some criticism about security.

The internals are well known to be a Kirin 980 SoC and this will be complemented with 4Gb of RAM on the Mate 20 and 6GB on the Pro.  Both the models will come with inbuilt storage of 128 GB. Unlike the recent flagship phones, the upcoming Mate 20 duo will support expandable storage. However, the promotional material indicates that it won't use a microSD card but instead a new nanoSD, I am sceptical on this one there have been no news articles of nanoSD being in development and I find it hard to believe that one slipping through. If it does happen I would suspect that it could be proprietary to Huawei.

The Mate 20 Pro will probably feature a 6.9-inch curved OLED screen that will support Quad HD+ resolution. The Mate 20 may feature a waterdrop notch IPS LCD display of 6.53 inches with FHD+ resolution. Both phones will be equipped with stereo speakers and 3.5mm audio jack. The Mate 20 Pro will be an IP67 certified device whereas the Mate 20 will be an IP53 rated phone. Both phones are expected to arrive with EMUI 9.0 based Android 9 Pie OS.

The current rumours suggest an $840 and $1,115 which would make them £638 and £847. The Mate 10 Pro launch price was £699/$799 and there appears to be some significant improvement with these models that could command a larger price and £799+ sounds likely to me.