Jumia now lists the Lenovo Idea Pad Yoga for 7000LE for the core I5 128Gig ssd model. And at 1.5Kg it is not too bad as an altrabook. Yes I expect a decent 13 inch ultrabook to weigh only 1.3Kg max not 1.5KG but think of it you get a bad tablet in the same device.
Why bad? Well at 1.5KG it can be a decent ultrabook where it is just 200G more than the normal for that category, but Given that an ipad is less than 700gm, this thing is a total failure as a tablet. Imagine holding it for like half an hour, your hands will hurt.
Nevertheless having a touch screen in an ultrabook is cool and being able to use it as a tablet for like 10 minutes max is not bad. Also it is the only ultrabook/notebook that I know of that than rotate the screen nearly 360 degrees and that is nice to parade around your office or university.
Overall given the specs and price it is a good deal.