In Another World with My Smartphone, Vol. 1 (manga)

After Touya Mochizuki is struck down by a poorly aimed divine bolt of lightning, God wants to make it up to him by giving him a new life in an unfamiliar world! And to sweeten the deal… Touya even gets to take his phone with him! Not only does he receive a huge boost to his physical and magical abilities, he's now got a ton of info about his new home at his fingertips. With his trusty smartphone in hand, he sets off for the nearest town to begin his adventure!

Volume 1 of the In Another World with My Smartphone manga series by Alexander Keller-Nelson.