Just in case you are not too familiar with what Flip is, you should know that this is a type of video camera that people normally use. This has become popular because it is very simple and you can definitely use it easily. Flip 3rd generation is known to be newer and it will have some features that are better as compared to 2nd generation. One of the main differences is the internal memory. 3rd generation will have 8GB memory while 2nd generation will only have 4GB memory.
Another difference between the two is the frame rate. The frame rate of the 2nd generation is 30fps while the 3rd generation will have 60 fps. When it comes to size, 3rd generation flip is known to be smaller and it is more compact as compared to 2nd generation flip.