Otros Backpacks For Smartphones and Tablets

Suffered by theft of my two mobile phones and a laptop. Planning to have some backpacks which have some protective features such as anti-tracking GPS tracking systems, intruder alarms and more. Please make clear me if there are any available to purchase them. Please dont say that they are available online stores. I came across some leading websites such as topantitheftbackpack.com. I couldnt notice anyone which are worth. Please help me with this.