In Another World With Your Smart Phone:

A story about you the reader working yourself to death only to be given a new life by God into a world of magic, mystery and immortals. You are Issakied by God basically and your only request is to be able to use all magic, be great with any weapon, and be able to tame all types of beasts and be able to take your smart phone with you. God grants your wishes and much more. You are even granted the ability to understand, and read the languages of the new world instantly thanks to God. Your dream in the next life is to have a harem of 100 wives if possible.