Amazon's Kindle Fire HD: Better; Can It Compete With The Nexus 7?

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Wi-Fi Performance: Faster From Farther Away?

Amazon knows that its customers will be using the Kindle Fire and Kindle Fire HD to stream multimedia content from its paid subscription and Instant Video (on-demand) services. So, the company claims to have prioritized wireless networking performance, which should theoretically improve the experience of anyone using the tablets the way Amazon anticipates.

Naturally, then, Amazon makes a big deal about the Kindle Fire HD's dual Wi-Fi antennas. By enabling reception/transmission over both antennas simultaneously, data throughput and quality of service should both increase at longer distances away from your wireless router.

We're happy to see Amazon minimizing the device-side bottleneck, but it's of course important to point out that most of us don't have Internet connections able to keep up with what the Kindle Fire HD is purportedly able to accommodate. Amazon's chart suggests its latest tablet is capable of 31 Mb/s. The fastest U-verse plan from AT&T, Max Turbo, has a downstream data rate between 18.1 and 24 Mb/s. Even at that speed, the difference between Google's tablet and Amazon's is almost completely masked.

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Average Throughput of 1 GB file, 10 feet From Linksys E4200
Row 0 - Cell 0	Google Nexus 7	Amazon Kindle Fire, Second-Gen	Amazon Kindle Fire HD
802.11g, 2.4 GHz	21.7 Mb/s	13.5 Mb/s	16.5 Mb/s
802.11n, 2.4 GHz	22.6 Mb/s	-	19.1 Mb/s

We aren't quite able to replicate Amazon's numbers in our lab. Achieving 19.1 Mb/s, the Kindle Fire HD is just slightly slower than Google's Nexus 7 using 802.11n. But Amazon has certainly come a long way in improving wireless performance. After all, the second-gen Kindle Fire only manages 13.5 Mb/s on an 802.11g network.

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Distance Before Signal Drop During Transfer Test, Linksys E4200
Row 0 - Cell 0	Google Nexus 7	Amazon Kindle Fire, Second-Gen	Amazon Kindle Fire HD
802.11g, 2.4 GHz	15 feet	18 feet	22 feet
802.11n, 2.4 GHz	15 feet	-	22 feet

Even if performance doesn't increase substantially due to MIMO, that's not the only variable in play here. We're also looking to see if the antenna configuration helps maintain a wireless connection farther from the access point. Again, using a Linksys E4200, we held onto each tablet and started walking away with our file transfer test in progress.

We passed our first interior wall three feet from the access point. The second wall was seven feet away. And the third wall was about 11 feet away. Before we could pass through an exterior wall, the Nexus 7 cut out. We made it an additional two feet past that final wall, 16 feet away from the access point, before the second-gen Kindle Fire spat back an error. And the Kindle Fire HD held on for four more feet.

Although we can't quite get behind Amazon's performance claims, we can say that the Kindle Fire HD outperforms any of the company's prior efforts with regard to wireless performance, and it does so from greater distances thanks to a dual-antenna configuration.

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30 Comments Comment from the forums

joepaiii

Why not normalize to a constant brightness level on all tablets rather than max for the battery rundown tests? Since they all have different max brightness, your tests aren't that reliable for judging true battery life.
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Another great article, as usual, from this site. However this statement in inaccurate:

"Buying a Nexus 7 locks you into Google's Play store and its movies, newspapers, magazines, and music."

I have BOTH the Kinda Fire app and Barnes and Noble app installed on my Nexus 7. And that is one of the things I love most about Google's tablet: the ability to get content from any provider I want. I would also like to point out that my gf has the B&N tablet, and it is much better than the Kindle Fire for several reasons: 1) you can sideload your own content through a removable memory card, 2) it has a better screen, and 3) the build quality seems much better after holding both in your hand. It's a shame the Kindle get's more attention, the power of advertising I guess....
Reply
nitrium

Given these devices are also intended to be used as eBooks, why won't anyone test battery life reading an actual eBook - i.e. Wifi/Bluetooth off, screen on (probably at ~50% brightness), no background tasks, just the occasional page flip every 30 secs or whatever the average reading rate is. Is that too much to ask? I tried to find this info with Google, but apparently no one but me cares.
Reply
freggo

What turns be away from Amazon and on to the Nexus is, among other things, the multiple reports I ran into about Amazon messing with the content of the device.
I don't care for a manufacturer remotely deleting things without my permission.

Reply
mrmike_49

no mention of printing - is it possible to print from ANY of these tablets to a net worked printer???
Reply
acku

joepaiiiWhy not normalize to a constant brightness level on all tablets rather than max for the battery rundown tests? Since they all have different max brightness, your tests aren't that reliable for judging true battery life.
There was an interesting case study a while back by AMD that pointed out most people use their devices at maximum brightness, and we've always strove to lean more toward real-world conditions. Having said that, a while back, we also started to standardize our battery life tests to a fixed brightness setting. While not real-world, it does provide a window into how devices compare to one another in that specific scenario. Bear in mind that a fixed brightness on one display may look different on another because of gamut differences. Often times you'll push the brightness up on a low gamut LCD to improve readability or visibility. The article has been updated to include those results. We always intended to do so but this understandably doubles our benchmarking workload and battery life tests take a lot of time. Thanks for being patient.
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acku

ryedawgAnother great article, as usual, from this site. However this statement in inaccurate:"Buying a Nexus 7 locks you into Google's Play store and its movies, newspapers, magazines, and music."I have BOTH the Kinda Fire app and Barnes and Noble app installed on my Nexus 7. And that is one of the things I love most about Google's tablet: the ability to get content from any provider I want. I would also like to point out that my gf has the B&N tablet, and it is much better than the Kindle Fire for several reasons: 1) you can sideload your own content through a removable memory card, 2) it has a better screen, and 3) the build quality seems much better after holding both in your hand. It's a shame the Kindle get's more attention, the power of advertising I guess....
Yes and no. You can use the Kindle Android app to view ebooks from Amazon. That's the case with Android, iOS, and Windows. However, this is not the integrated interface that the Nexus 7 provides. It's a little different for viewing ebooks and magazines.

More importantly is the difference in movie support. You cannot use the Nexus 7 to view Amazon Prime movies the same way on the Kindle Fire HD. H.264 streaming works when you're on an Amazon tablet, plain and simple. If you want to watch those same movies on the Nexus 7, you need to install Firefox and Flash. But that's still Flash, not the streaming H.264.

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acku

nitriumGiven these devices are also intended to be used as eBooks, why won't anyone test battery life reading an actual eBook - i.e. Wifi/Bluetooth off, screen on (probably at ~50% brightness), no background tasks, just the occasional page flip every 30 secs or whatever the average reading rate is. Is that too much to ask? I tried to find this info with Google, but apparently no one but me cares.
That's a great idea! Unfortunately it's very difficult to implement from a programming perspective to keep consistent across all devices and platforms.
Reply
nitrium

That's a great idea! Unfortunately it's very difficult to implement from a programming perspective to keep consistent across all devices and platforms.
I'd actually settle for "idle" battery life, since reading an eBook is effectively utilizing nothing but the screen. So Wifi/bluetooth/GPS/camera off (not just unused, but literally disabled in settings), screen on (at ~50% brightness). Do these things last for days under these conditions? I can't find data for that anywhere. My primary use for a tablet would be eBooks, but I have no idea which reader (except the original Kindles) actually gives the best battery life for that specific purpose.
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andrys1

Re the Barnes and Noble Nook Tablet HD that someone mentioned... A problem for marketing is that, despite the competition, it has NO cameras, not even one for Skype (important for family & friends who like to communicate via video chat), and, more important for many of us, B&N will not allow owners to enable installation of apps from non-B&N sources.

Amazon does allow installation of apps from "unknown sources," so I have (from places like getjar.com or 1mobile.com) apps like Google Maps in satellite mode, Mantano and also Aldiko to read DRM'd ePub books legally. I also have the B&N Nook app, since I have the NookColor but prefer to just read on the Kindle Fire HD now.

Very accurate article. As for the Kindle Fire HD, I love the stereo speakers with Dolby and good separation because they're relatively strong and very clear. I hate using headphones or earbuds as a rule (unless in public but I don't usually listen to anything while around other people) unless I'm wanting best sound in music. For me, although my hearing is not ideal, dialog is MUCH better on these than on laptop units I've tried.
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