What is User Guide and how can helping to uses Devices.

In this article a short discussion Device User Guide.We always follows the User Guide when a new device purchasing and flow all the instruction as helping to uses the devices or the equipments for comfortably using and safety for devices. The instructions are always seems as User Content, Advantage, About Phone or Understand Phone,Inserting SIM and Memory Card,Turning phone, About Battery status or Charging capabilities, About Google account and Setting, Google search, Notification, Phone Security and services, Network setting and Application,Internare and Wifi Connection, Tethering & Portability,Bluetooth services, Configuration and Email services, Airplane Mode,Google Maps and Play Store, Safety Precaution, Taking care Cards and Warranty card or Guarantee Cards,Disclaimer and Copyright policies of the devices.
If, there are all possible guides are supporting with customers satisfaction than the customers are purchasing the models. If,all the guises are not matching with the devices and Google articles,than we are not interested going to purchase a model of iPhone,iPads,Smartphone or Android Devices. So, If we have possible before purchasing a divece than we must be clearance that Google Ads articles of devices and company articles of devices are same or not.