Now the device: I am open to new technologies. Already own iOS and Android devices. Now wanted to test these "fire" -Dinger. Lo and behold, it surprised me. My first impression is a cross between iOS and Android. An attempt to remove the user much (I was surprised that it was already configured on my behalf [or Amazon account] - which in turn has already made me scared), but still remains flexible.
Technically, the device is actually Top; the speed convinced and videos (Amazon Instant Video) not stutter. It even has two "world firsts": the so-called Dynamic Perspective and Firefly..
For battery life I can not say anything yet, but I'll catch up.
Of interest is the required nano-SIM card-size. If only once on the Amazon product page mentioned at the tech. Details. But that's not really the issue.
The first apps, which are allegedly not compatible with the device, I have already found, such as options; although that is offered on the Amazon App page to download.
Others are not up to date, such as the Page Manager from Facebook; I get displayed as a message.
It is also interesting that it is supposed to weigh 160 g, but my kitchen scales shows "only" 131g.
Compared: iPhone 5 = 115g or Samsung Note3 = 166g.
According to "SunSpider 1.0.2 JavaScript Benchmark" reached the Silk browser (the name of) a value of 852ms.
The supplied headphones are amazing, you have cost separately 24.99 - for my hearing is good enough.
Although the device has two speakers (stereo), but is not really a big hit. Since the headphones are very welcome.
What also has impressed me is the camera. Subjectively better than from Samsung; even has an optical image stabilizer!
On the whole, I am satisfied with the device very much! Now need only a suitable cover for it.
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Addendum 17.10.2014:
So, the battery life is not a big hit. Although no worse than Samsung or iPhone 5, but not better. Probably because I have a lot of apps that are constantly being updated ...!?
Already have other apps (not from the Amazon store) installed without problems.
A shell I have not yet taken, I will not, because it (fixed) is very good in the hand.
The 3D effect is awesome. Really fun to put the device in the hand. And the games (with the 3D effects) are also contagious. Did not want to stop playing.
What I find retrospect beneficial is the "proximity" to Amazon. Everything that has to do with Amazon, you'd think runs better on the Gerät.- No wonder, right? - Should also be mentioned ...