If you are outside of US,you should order US version either. It will be included charger, the international version comes with cable only.
Buy a nook they are way more efficient!
The best place to buy a new E-book reader would be Amazon.com. Amazon is known for producing the cheapest and nicest E-readers, such as the Kindle and the Kindle Fire.
You can buy e-books in the kindle store from the kindle, and they will download directly onto your e-reader. Then you select the book from your main menu, and start reading!
Kindle
iBooks, nook, kindle reader: any of these are great apps
The best e reader is the Kindle. I don't own one personally but I have friends that own both the Kindle and the Nook. The Kindles owners are very happy with their purchase.
If you are a voracious reader then buying an e-reader is always a good buy. Compared to the Kindle, the Nook boasts a color screen and web-surfing capabilities.
Kindle by a million miles
Amazon will not ship the Kindle directly to Singapore. There are "parallel importers" who import and sell the Kindle online, even in Sim Lim Square, but the mark up is very high. You can easily import your own Kindle using third party shippers such as vPost, Borderlinx or comGateway.
Currently the top two selling ereaders are Amazon's Kindle and Barnes and Noble's Nook. I personally think that the Kindle is the better buy as the Kindle is a great quality.
In Ho Chi Minh City, you can buy a Kindle reader at major electronics retailers like Nguyen Kim, Phong Vu, or FPT Shop. Additionally, online platforms such as Lazada and Tiki offer Kindle devices with delivery options. Local bookstores may also stock Kindle readers, so it's worth checking there as well.
A kindle paper white as it glows in the dark and you can make the writing bigger.