HERE is a powerful maps application, it has very complete data for all the streets in cities around the world. Even in some countries HERE has more complete data than Google Maps.
Nokia released HERE maps exclusively for Samsung Galaxy devices. This means the users of non-Samsung Android phones can not install it in the normal way. Yup, but you can install an APK file, as is commonly done to other applications.
HERE also provides map data for offline use. You can download it by country, and after that, you do not need the internet connection anymore when using it.
Now you can install Nokia HERE Beta on non-Samsung Android devices, thanks to the APK file! Yay!
Just grab the APK file and install it following it on your Android. Enjoy it!