Android Phone or Tab ?

[digimart]

hi
my need is to use couple of Android applications relating to Solar PV panels, such as Sun Angle Finder, Tilt, Azimuth, etc. For calls I already have a device with me.

I would like to spend as less money as possible on my purchase.

What would be more cheaper in price an Android phone or an Andriod Tab ?

Any brand & model recommendations keeping in view the required applications as stated above.

Thanks

Omar