Nokia 206 Single sim version
You can check the compatibility here: http://www.whatsapp.com/faq/s60/21099118[DOUBLEPOST=1407331011][/DOUBLEPOST]Good luck finding it though. Seems to be a tough find. Might do well to hunt the brick and mortar stores.
Thanks Logisto..
But i am confused. The whatsapp site says 206 Single Sim (which is not available almost anywhere), and when i see a snapdeal review of the 206 Dual-Sim http://www.snapdeal.com/product/nokia-asha-206-black/636365
The reviews say that whatsapp is preinstalled. I guess I should inquire at a shop first??
You can install it also, I have the single SIM and had installed it via the nokia app store.
Although using whatsapp was a real pain after getting used to the touchscreen phones.