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Pro High resolution screen
The Kobo Glo HD uses the same resolution as the Kindle Voyage at 1448 x 1072 resolution 300 ppi. This allows for sharp looking text that is easy to read.
Pro Supports a wide range of formats
Kobo is known for being an .epub reader and with that comes a more open platform than Amazons offering due to the openness of .epub in general. eBooks can be purchased from a wide range of store due to the openness of the reader and do not even have to consist of only .epub files since it also supports a wide range of other formats such as .mobi, .cbz/.cbr, .html and .pdf.
Pro 4GB of onboard memory and an expandable SD slot
While 4GB of internal memory is now pretty much standard, it still is quite a lot of room to store small eBook files. What is great about the Touch 2.0 though is that even with this ample on board storage users can expand their memory with a SD card.
Con No external SD slot
You can't add external memory to the reader, nor can you replace the built-in MicroSD card without voiding the warranty.
Con Screen not as bright as Kindle Voyage and has no auto dim settings
The Kobo Glo HD, when compared to the Kindle Voyage does not have as brght of a screen nor does it have an auto dimmer that detects ambient light. Though it is priced quite lower than the Voyage so it does make sense as to why some features are not comparable.