Hi, nanny_sugar, they're both Wi-Fi devices thus to get connected to Internet you need to have access to wireless hot spot. Nook Tablet is clearly the superior device over the other devices in its class. Here's a quick side-by-side of just released next generation Nook Tablet from Barnes & Noble vs. Nook Color and Kindle Fire:
1. Nook Tablet has a dual-core processor vs. single core of Nook Color
2. Nook Tablet has 1.0 GB of RAM (memory) vs. 512 MB of both Nook Color and Kindle Fire
3. Nook Tablet has 16 GB of capacity to store content vs. 8 GB capacity of both Nook Color and Kindle Fire
4. Nook Tablet's battery is rated for 11.5 hours of reading and 9 hours of video playback on one charge vs. 8 hours or reading and 7.5 hours of video of Kindle Fire and Nook Color
5. Nook Tablet has microSD card slot to expand the capacity by another 32 GB for videos/photos/ebooks vs. no expandable slot of Kindle Fire
6. Nook Tablet has the world's most advanced fully non-glare laminated HD screen with the best viewing angels on the market vs. no anti-glare coating of Kindle Fire
7. Nook Tablet comes loaded with optimized Netflix, Hulu Plus for streaming of millions of movies and shows vs. none of those available on Kindle Fire
8. Nook Tablet has a built-in microphone thus it can be used with Skype for voice conferencing and for dictations with speech recognition software vs. no mic on Kindle Fire or Nook Color.
9. Nook Tablet weights only 14.1 oz vs. 14.6 oz of Kindle Fire and 15.8 oz of Nook Color.
Also it's worth mentioning that if you walk in with the Nook to Barnes & Noble store, you’re allowed to read ANY available eBook for free while in the store via free provided in the store Wi-Fi where Nook eBook store has over 2 million of paid books and about the same number of free public domain books. Nook already has Cloud as your ebooks are stored in your online library as well as downloaded to your device. For streaming movies and shows, it has Netflix and Hulu's Clouds with much better content that Amazon could ever hope to offer.