Just like Google has done with YouTube, you will soon be able to take offline Maps search and navigation with you. Google has announced in the 2015 I/O developers conference that they are going to work on Offline Maps and turn-by-turn navigation. Google hasn’t given an exact date as to when this feature will begin working on Maps.
You will get the turn by turn voice navigation even with the offline Maps, stated Google. This is particularly relevant in markets like India where cellular connectivity may not always be speedy at all times while driving.
Offline maps navigation will certainly help out people in saving up on data charges when they are out and about. However, keep in mind that offline maps with turn-by-turn navigation will surely take up significant space on your storage.