The Nokia C10 and G20 are the Nokia smartphones with the biggest batteries; 5,050mAh capacity. However, that position will soon be taken over y the Nokia C30 which will pack a 6,000mAh battery.
Well, things are not official yet, and these are the information shared by a leakster on Baidu. By the looks of the Nokia C30, chances are that the phone might actually have a dual rear camera and a rear mounted finger print reader.
The Nokia C20 Plus is another upcoming model from the company which is a successor to the Nokia C20. The latter only has 3,000mAh battery capacity whereas the new Nokia C20 Plus is rumored to have 5,000mAh battery which is a huge upgrade. Also, there are dual cameras on the Nokia C20 Plus compared to the single cameras on the Nokia C20. The image does not specify any finger print reader.
The Nokia C30 looks bigger than the Nokia C20 Plus which is ought to be bigger than the Nokia C20. There are no rumors about when these C-series smartphones will be launched.