It depends on the tools you will be using for your development task and the hours of work you will do on a daily basis.
If you are thinking of a workstation laptop, then this would be the best choice for development work. My friends have been using Lenovo T series workstation whole day at his office for the past couple of years.
He runs multiple tools like android studio, eclipse, etc.
You can also go with ultrabooks, notebooks. These are also doing a pretty good job, but I don't recommend it as these are not for heavy usage.