Amazon has released a new redesigned Kindle e-reader. The new model is thinner and lighter than the previous generations Kindle, and features a more rounded design to make it easier to hold in one hand. It has double the memory and now comes in a white option. It is also the first Kindle with built-in Bluetooth audio support. This model replaces Amazon’s most affordable Kindle, which was last redesigned in 2014, and maintains the same $79.99 price.