2. Tips to Purchase Nook The primary tip to purchase Nook is that it has separate LCD touch screen for navigation and use of virtual keyboard. This tip shows that in kindle vs nook comparison you will find Nook effective because it is more stylish and trendy as compared to Kindle which also has touch screen. It’s another feature that insist the customers to buy it, is its battery which is replaceable. The factor that makes kindle vs nook match easy is the capacity of extra storage. You can easily add upto 16GB memory cards into your Nook device to make its memory larger. You can also lend your eBooks to your families and friends who have compatible or Nook devices and during this period, you will not be able to use those books as they are not available. Last but the most significant tip in kindle vs nook is that if you want any file type eBook, then you have to use Nook as it supports EPUB for free and open books by IDPF. The contest of kindle vs nook becomes and you can easily come to the decision that Kindle is best due to its latest generation e-Ink screen. It has 50% better contrast than Nook or Kindle 2 that uses the first generation of e-Ink. This is the main point that forces the customers to buy Kindle as it is necessary to read books comfortably without any kind of eye straining. Its size is smaller than Kindle 2 and has thinner, smaller and 3 ounces lighter size than Nook. While when you talk about its battery life, you will find that its battery life is upto 1 month rather than Nook that has 5-6 days of battery life with wireless turned off. The factor that is prominent in kindle vs nook is their internal memory. Kindle has 4GB internal memory while Nook has 2GB internal memory. You can easily store 3500 eBooks into your Kindle device.