What is the maximum micro SD card size?

Theoretically there is no limit to the size of the MicroSD Card that will work with the Hema Navigators.

However, Hema has tested up to 32GB MicroSD Cards.

With the increased capacity of a 32Gb SD card, the large number of maps which can be contained on the card can slow the 4WD applications down somewhat due to the longer indexing / lookup time.

We generally recommend 16Gb as the maximum "comfortable" size SD card for the Navigator.

The HN5i, HN6 and HN7 come with a preloaded 8GB SanDisk MicroSD Card.