Once downloaded, you needn't worry about internet connectivity or if the GPS works. The map is stored in your phone.
When on vacation, don't worry if there's no Wi Fi or about the cost of data downloads - you'll still know where you are with this pre-loaded map of Chamonix.
If you consider Google maps too slow to load, this is the product to consider
Note: you will need to download the map files after installing the app,
which may take some time, depending on the speed of your data
connection. Be sure to do this before you leave on your ski vacation
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