Use voice commands to have Alexa search items in your order history and on Amazon's Choice list, and read you the products' names, prices and estimated delivery times. Once Alexa has found you the highest-rated and best-priced products, tell it to confirm your order and you're set. Watch for special promotional discounts that you can use to save money while voice ordering, and always ask for current Alexa Deals for exclusive savings.
Some other large e-commerce sellers use Amazon to sell their products in addition to selling them through their own websites. The sales are processed through Amazon.com and end up at individual sellers for processing and order fulfillment and Amazon leases space for these retailers. Small sellers of used and new goods go to Amazon Marketplace to offer goods at a fixed price. Amazon also employs the use of drop shippers or meta sellers. These are members or entities that advertise goods on Amazon who order these goods direct from other competing websites but usually from other Amazon members. These meta sellers may have millions of products listed, have large transaction numbers and are grouped alongside other less prolific members giving them credibility as just someone who has been in business for a long time. Markup is anywhere from 50% to 100% and sometimes more, these sellers maintain that items are in stock when the opposite is true. As Amazon increases their dominance in the marketplace these drop shippers have become more and more commonplace in recent years.
I do not like the security of this apps. By default any one in my home can just open it up and start buying things on my account. I would like it to just add things to my cart on the TV and them buy on "My" Computer or "My" phone. I know you can setup a PIN for "videos, purchasing and certain types of content".But, you then need to enter the PIN for $0 videos. Also, anybody with access to the Fire TV remote can just install the apps and start buying things, no pin, no password, just because you have a Fire TV setup on your account. Amazon you need to have a separate PIN for Buying videos, parental control (ratings), Apps and Shopping. And by default the app should setup a PIN.