Apple other then launching its 4 inch iPhone is also expected to launch a new iPad in march, According to 9to5mac.
Last year we had our long rumoured crazy big iPad Pro with apple’s stylus called Apple Pencil, this year Apple is expected to launch iPad Air 3. The new iPad Air will have the same size just like the current ones.
Apple is putting down a LED Flash for the rear camera in air 3. Apple will also improve the sound quality. iPad Air 3 will have a support for Apple Pencil, So now to use Apple pencil you will no longer need to buy that big iPad Pro.
In short, March will be the month for 4 inch iphone, new ipad, new apple watch and some iOS software launching.