7 days review of Kindle DX

A few weeks ago the stupid side of me left the Kindle 2 in the seat pocket on the flight back from Atlanta to LaGuardia. Leah bought me the Kindle DX as a birthday/X’mas present to replace the Kindle 2. After using the DX for 7 days, here is what I’ve found so far.


  • Larger e-ink screen, longer reading between page flip
  • PDF reading — printing web pages into PDF allows me to read longer articles on web sites while working out in the gym.
  • Auto rotation — allowing to operate the Next/Prev Page buttons with either hand
  • Not as large as it looks in pictures
  • Amazon case for DX with magnetic clasp
  • Keyboard feels better to type on — pill-shape, raise keys are so much nicer than the round keys on the Kindle 2


  • Larger and heavier — still manageable with backpack but not coat pocket-able.
  • Not as many choices in cases

And the Ugly:

  • Doesn’t come with case, despite increased probabilities of damaging the huge e-ink screen

Weekend with Kindle 2

After watching the FedEx's tracking page like a hawk last week, my Kindle 2 arrived on Thursday just in time for me to take it with me for the Alt.NET weekend in Seattle. The flights between Seattle and Newark allowed me to spend hours reading on the new Kindle. Instead of giving a full hands-on review (plenty can be found on the interweb), I'll give some comparisons with the original Kindle.

Nothing really was wrong with the build quality of the original Kindle. It is light and feel solid, despite the plastic body. But once I laid my hands on the new Kindle, there is really no comparison. The non-wedge shape and the thinness combines with the metal back cover gives Kindle 2 a much higher build quality, much like the original iPhone vs. iPhone 3G. And even though Kindle 2 is lighter than Kindle 1, I feel the new version is much more solidly built. The uniform thickness makes the new Kindle so much easier to hold. The wedge shape of the original almost forces one to hold it in about two ways that don't hurt or tiring. Now I can hold it anyway I want.
You can see the huge difference in refresh speed between the old and new here. It makes reading on the new Kindle even better experience. There is no more the need to click Next Page just a few seconds before I finish the page to compensate for the slow refresh. Of course, the quicker refresh speed allows the use of the new 5-ways controller. The increased level of grey levels (16 vs. 4) really makes illustrations becomes a viable of the eBook. Previously it depends on how much effort the publishers put it to cater for the 4 levels of grey. Some makes it readable while others make it impossible to decipher.
One of the main complain about the original Kindle is the placement of the buttons around the edge. The location makes it almost impossible to not activate a button when picking up the Kindle. The buttons in the new version are now much smaller and rock inward instead of the traditional outward. This means I can pick up or hold the new Kindle without fearing pushing a button by mistake.
UI & Navigation
The new 5-ways controller makes navigating the menu system (which is also re-designed) so much easier than the roller of the original. This also allows highlighting text to work on word by word basis, verses the line only in the original. Another thing is that the new controller is much less noisy to push than the roller. Not a huge deal normally but makes a big difference when reading in bed, next to a sleeping wife!
Battery & Charger
The new battery definitely last longer than the original. Compare to the original Kindle review which also happened during a weekend trip to Seattle, the new Kindle used only 1/3 of the charge vs. 3/4 with similar usage. Lots of people have issue of the non-removable battery in Kindle 2 but I don't feel it would be a problem. May be that's because I rarely have to replace a battery in any of my electronic gadgets. I do like the new charging mechanism though. Instead of a separate charger, the new Kindle uses a USB cable for charging from the computer, or with an adaptor from the main power. And the adaptor is very slight and easy to pack, it reminds me of the design the iPhone 3G adaptor.

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Tech book on Kindle

I met Brian Donahue at ALT.NET in Seattle a couple of months back, and earlier this evening he tweeted that he was curious how well code in PDF would display on the Kindle. So I replied and told him I'll try it out and show him the result.

The process of converting a PDF to Kindle format is very simple. Since I am at my computer I don't need to send the PDF to my Kindle wirelessly, so I emailed the PDF (5.6MB) to my 'free' Kindle email address: alexhung@free.kindle.com. I received back the converted .azw file (2.6MB) from Amazon within a couple of minutes. I copied it to my SD card, popped it into the Kindle, switched it on, and there it was right at the front page. 

So here's a screenshot of the original PDF taken from Preview.app:

And here are how the roughly same page looks on the Kindle:
As you can see the colouring and the code font are gone, obviously, the line-break is off and the download links are gone too but these are to be expected. But overall, I am impressed by the quality of the conversion. The text is properly converted, i.e. not being displayed as a bitmap image. Even the table of content is navigable (it doesn't show up as in the Kindle menu though).
Despite the good quality, I am still not completely convinced the Kindle is a good way to read tech book. Simply because there is always a lot of flipping back and forth when I read tech book, especially reference books, and the Kindle page by page flipping is way too slow. But for regular PDF book, I think the Kindle works just fine.
(Note that I took the photos indoor with flash, at ISO 1600 handheld. Even with image stablizer on, there are still some handshakes.)

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Kindle review

My Kindle had finally arrived over a week ago after waiting for over six weeks, and just in time for my weekend trip to Seattle for the ALT.NET open space conference. Since its release, I have plenty of reservation regarding the hardware design, usability, content availability, etc. But I finally convinced myself that it is worth having for a number of reasons. First, I would not need to carry the extra weight of the books with me every week as I travel for work. Further more, the saving in the production and transportation of paper books concerns me as I examine every part of my life of waste and opportunity to streamline.

Thanks to Apple, the unboxing experience of an electronic device is now an experience in its own right! Amazon has obviously studied this effect as the Kindle's packaging is pretty attractive. Not quite at the level of Apple's desirability (e.g. won't make your friends & family go 'wow') but I certainly enjoy unpacking and taking the device out.

The actual size of the KIndle is a little smaller than I imagined, despite all the photos available on the web. The center of gravity is not biased towards the bottom as I anticipated to help holding the device but I have no problem holding the device in one hand. The grippy material on the grey back plate make it easy to keep the device in my hand with minimum force.

Many people has complained about the size and placement of the button on the Kindle. Personally I don't have any problem holding it around the bottom left corner with my left hand. However, I think this may be because I read a lot more magazines than books so I am used to holding the magazine or Kindle in a diagonal way; instead of along the spine of a book, which would make it very easy to hit the Next Page button easily. Similarly I don't have any issue with holding it with my right hand. Where I have issue is with the gigantic buttons are on the side. It is almost impossible to pick up the Kindle without activating one of the buttons by mistake. The wedge shape also make it difficult to pick it up off the table from the right. I have to approach it from the left and even that is not easy because if the Kindle is not in Sleep mode or turned off, 9 times out of 10 I would press either the Prev or Next button. I am hoping that with practice I would be able to pick it up without even thinking.

The other thing that I was not sure about is the inclusion of the keyboard. Many people has commented that why would one want a keyboard when you are reading? Turns out the keyboard is much more useful than one would think. I will come to that later. As for my worry of hitting the keys accidentally, that turns out to be a non-issue. Amazon has designed the keys with enough resistance that it is difficult to press any keys as you hold the Kindle in you hand or carrying it around, but not too stiff to make it difficult to type.

The carrying case that Amazon included with the Kindle is well, functional. Shaped like a folder with elastic band to keep it close, it has no mechanism to retain the Kindle when the case is opened. That means the only safe way to use the case is to carry the Kindle around, is not keep it in the case as you read. My suggestion would be to get a third party case. I chose the Kindle Slip Case from WaterField Design in San Francisco.

What impressed me most about the Kindle is the software and the UI design. As I explored it throughout last week, I noticed many small nice touches which added to the reading experience. First, bookmarking a page involves scrolling to the top and click on the corner of the page, e.g. dog earing the page! Then the ability to highlight text or annotate means for the first time in my life, I actually do both when I read. The lookup function with the built-in dictionary also work really well, again allowing me to look up word definition that otherwise I won't perform because I am lazy. This is where the inclusion of the keyboard helps. I would not use any of these function if I have to either a) attach an external keyboard (might as well pick up my iPhone and use that if that is the case), or b) slide a hidden keyboard out, which may upset the balance of the device not to mention weight and reliability. Other UI touches such as showing where a book is stored (Amazon server, the Kindle, or being downloaded), the progress bar showing how far you are in the book, the pseudo-window scroll and click interface, etc. mean I was able to figure out how to the Kindle without reading the user guide.

The only time I need to refer to the user guide was when I tried to figure out how to put text file onto the SD card and read it on the Kindle. After a few failed attempts and re-reading the user guide (on the Kindle!), I realized that I had to put the files in a directory called "documents" on the SD card in order for the Kindle to recognize them. This was not obvious in the user guide and some one with less patient or deductive logic may not be able to figure this one out!

One feature that I can see huge potential but have not yet tried myself is the ability to search through all the books I own, including the ones on Amazon server. I can imagine when I have a few more books in my library and I have to find a reference from one of them but I don't remember which book it is from. Instead of going through all the books that I think the reference would be in, the Kindle would just return all the search results to me probably including from books/magazines/newspapers that I don't even remember having read!

As for battery life, I was able to read throughout the weekend in Seattle and got down to 1/4 charge by the time I got home on Monday. This includes two 5 hours flights, about an hour of reading each evening (with wireless off), and a few browsing sessions of the Kindle Store online. I also put the Kindle into sleep mode, which uses a little more power, instead of switching it off during the weekend. So I think I can easily get a week of reading from the Kindle without recharge.

What about the actual reading experience? The lightweight of the Kindle compares to a real book (I prefer hardcover over paperback) and the lack of need to hold the book to keep the pages open straightaway make reading on the Kindle much simpler and enjoyable. The almost silent page turning button also makes it perfect for reading in bed at night while your partner asleep next to you. The e-ink is very easy on the eyes even on the smallest font size. The grey background does require a little more ambiance lighting to provide good contrast but even my bedside LED lamp is bright enough to not cause eye strain. The other advantage of reading on the Kindle is that because I now have multiple books within one device, I can switch to reading another book quickly without having to either plan which book I also want to read beforehand so I'll have it next to me, or physically put one book down and put another one up.

The one thing that detracts from the Kindle experience is the slow refresh rate of the e-ink. It is not a problem as I read. The page turning/refresh is fast enough to not disrupt the rhythm. But when navigating through the Kindle store or using other more complicated features such as highlighting text, the e-ink refresh rate is a little too slow and would require some patient to wait for a second or two for the screen to update. I think Amazon can mitigate this issue by either moving some of the features from onscreen menu to hard button on the keyboard or provide some keyboard shortcuts for the most used functions.

Other minor annoyance includes inability to organize books into folders on the Kindle, not able to use it on the plane during takeoff and landing because it is an electronic device, and despite the 90,000+ books on Amazon there are still plenty of main stream books missing from the library. Personally I would rather see more newspaper and magazines add to the library to cater for a wider audience.

So would I recommend the Kindle? Not to everyone. If you read enough, e.g. more than a few books a year, or the books you like or the newspaper you read is on the Kindle store, or you travel/commute a lot with books/magazines/newspapers, then the Kindle is definitely worth the investment. Unless you use the Kindle as the primary reading device the high cost of the initial investment may not make sense. But for me, the Kindle definitely worth its weight in, well, all the paper that I will be saving!

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