Thinkpad T440s size&weight with different options

Hello there. I was wondering what the different sizes and weights of the new Thinkpad t440s is. I have only found the following: T440s

And regarding to that:
331mm x 226mm x 20.65mm; ab 1.58 kg (Non-Touch)
331mm x 226mm x 22.94mm; ab 1.76 kg (Touch)
with
68+ 6-cell battery ≈ 180gr.

But there is also the one option with a dedicated graphics unit, both for touch and non-touch, which somehow are not dockable. So do they differ also in size and weight?

Plus, it has been years since my last thinkpad. So I might be new to its new era. The 6-cell batteries, which can be optionally bought, instead of a 3-cell one. Are those the ones, which sort of come out of the back of the laptops? I found those things pretty formfactor-killer. And I wouldn't really consider of getting one, just for an extra few hours, whereas the two 3-cell batteries already deliver like 12 hours.

Thanks a lot for the answers already!

PS: How funny, that the official Lenovo website doesn't have this kind of information.

 

I believe I need to correct something. I thought that the battery life of 6 hours would be per 3-cell unit and 12 hours in total, as from the official website info. But clearly they just consider the one 3-cell battery which is swapable. Please correct me if I am wrong, but I am kind surprised how I wasn't surpised of a 12 hours standard battery life in the first place, and 18 with the optional battery. I guess we still have some time towards that good of battery lives.

 

Does no one have any information about this? Would be really appreciated.

 

I am in the US so no graphics card option here and my answer will be in pounds

The non touch T440s weights 3.5-3.6 pounds.
The extended battery weights exactly or a little less than .5 pounds.
The touch version wight .4-.5 pound more than non touch.

SO now you can do the math and conversions.