The price of an AED will ultimately depend on the manufacturer and the specific features of the device. If your buying one with the latest and most advanced features, like fully automated voice instruction, you’ll probably have to spend a little more. AEDs can be purchased online for an average cost of around $1,500.00 ($1,100.00 for the least expensive models). Most AEDs also require a physicians prescription and possibly more. This will often increase the overall cost of your device as well. See the AED review section of the site for price comparisons on the latest devices.