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词条 Fire HD
释义

  1. History

  2. Design

      Hardware    Software  

  3. Models

  4. See also

  5. References

  6. External links

{{Infobox information appliance
| name = Amazon Fire HD
| logo =
| image = File:Kindle_Fire_HD_8.9.jpg
| caption = Fire HD (2012) 8.9"
| developer = Amazon.com
| manufacturer = Quanta Computer
| type = Tablet computer
| status =
| unitssold =
| unitsshipped =
| media =
| os = Latest: Fire OS 6 (Based On Android 7)

Previous Versions:

Fire OS 5.6.1.0 (Based On Android 5.1.1)

Fire OS 7.5.1 (Based On Android 4.0.3)


| cpu = ARM core (see table)
| memory = Kindle Fire HD 7 (2012), Kindle Fire HD 8.9 (2012), Kindle Fire HD (2013), Fire HD 6 & 7 (2014), Fire HD 8 & 10 (2015) - 1 GB Ram

Fire HD 8 (2016, 2017 & 2018) - 1.5 GB Ram

Fire HD 10 (2017) - 2 GB Ram


| storage = 8–64 GB Flash (internal)
| memory card = MicroSDXC slot (Fire HD 8- 2015, 2016, 2017, 2018 & Fire HD 10 - 2015 & 2017
| display = 6", 7", 8", 8.9" (mostly HDX models), 10.1" LCD
| sound = Stereo speakers
| input =
| camera = Kindle Fire HD 7 (2012) & Kindle Fire HD 8.9 (2012) No Rear Camera, 1.3 MP HD 720p Front Camera

Kindle Fire HD (2013) -No Rear Or Front Cameras

Fire HD 6 & 7 (2014) - 2 MP Rear Camera, 0.3 MP Front Camera

Fire HD 8 & 10 (2015) - 5 MP Rear Camera, 1.3 MP HD 720p Front Camera

Fire HD 8 (2016) - 2 MP Rear Camera, 0.3 MP Front Camera

Fire HD 8 (2017) & Fire HD 10 (2017) - 2 MP Rear Camera, 0.3 Front Camera (Fire HD 8, 8th Generation has also 2 MP Front Camera)


| connectivity = Micro-USB 2.0 (type B), Micro-HDMI,
3.5mm stereo jack, 802.11 Wi-Fi,
4G LTE (8.9" model),[1] Bluetooth[2]
| service = Amazon Prime, Amazon Cloud Storage, Amazon Cloud Player, Amazon video, Amazon Silk, Amazon Appstore, Amazon Kindle Store
| predecessor = Kindle Fire, Fire HDX
| related =
| website = [https://www.amazon.com/b/?ie=UTF8&node=6669703011&ref_=fs_ods_fs_tab_cp Amazon Fire HD]
}}

The Fire HD, also known as Kindle Fire HD, is a member of the Amazon Fire family of tablet computers. The eight generation family consists of: 7" (2012 model), 8.9" (2012 model), 7" (2013 model), 6" & 7" (2014 models), 8" & 10.1" (2015 models), 8" (2016 model), 8" & 10.1" (2017 models), and 8" (2018 model).

History

The first model was announced on September 6, 2012 and was available in two versions, 7" and 8.9". The 7" model was released in United States on September 14, then France, Germany, Italy, Spain, United Kingdom on October 25 and in Japan on December 18. The 8.9" model was released on November 20 in United States, in Japan on March 12, 2013 in Germany on March 13, and in India on June 27.[3][4][5][6][7][8]

On September 25, 2013, the Fire HD second generation was released. The price of the Fire HD 7" was reduced to $139, the processor speed was upgraded to 1.5 GHz, upgraded from "Android based" OS to a compatible proprietary fork of Android named Fire OS 3, removed the front camera, used a new form factor and decreased the available storage options. In addition, the Fire HD's successor the Kindle Fire HDX was introduced.

On October 2, 2014, the Fire HD third generation was released, which is part of the Fire Tablet's fourth generation, with 6-inch and 7-inch touchscreen sizes. In addition, the Fire HD Kids Edition was released, which is the same device as the Fire HD 6 except it comes with a case and one-year subscription to Kindle Freetime apps.[9] In addition, the name "Kindle" was officially removed from the tablets' name.

In September 2015, Amazon released a new range of Fire tablets with 7, 8, and 10.1 inch sizes. The 7 inch was simply called the Fire 7, while the 8" and 10.1" were called Fire HD 8 and Fire HD 10 respectively. The Fire 7 is unique as it is, thus far, the lowest priced Fire tablet at $50. In September 2016, Amazon announced the new Fire HD 8 with Alexa[10] starting at $90.

In 2017, the seventh Generation Fire 7 Fire HD 8 were released. Some differences between the 6th and 7th Generation HD 8 models were the price, the gyroscope removal, the increase of maximum SD card expansion, and the better graphics chip.

Design

Hardware

The Fire tablets feature multi-touch touchscreen LCD screens. The first generation 7" model contains a Texas Instruments OMAP 4460 processor, while the 8.9" model uses an OMAP 4470 processor.[11] All three models feature Dolby audio and stereo speakers. The 7" model's speakers are dual-driver, while the 8.9" model's are single-driver.[11] The device has two Wi-Fi antennas on the 2.4 GHz and 5 GHz bands which utilize MIMO to improve reception.[11] The Fire HD also added Bluetooth connectivity allowing users to connect an array of wireless accessories including keyboards.[11] The first generation models have an HDMI port, but this is missing from future generations.

In June 2016, Amazon released a version of the Fire HD 10 that has an aluminum exterior instead of plastic like the other Fire tablets, and is available at the same price as the plastic version.[12]

Software

The 2012 models use software that introduced user profiles for sharing among family members and the ability to place absolute limits on total usage or usage of individual features, called FreeTime, and tracks the user's reading speed to predict when the user will finish a chapter or book. The OS is based on a version of Android 4.0.3 (Ice Cream Sandwich). This does not allow use of Google Play, limiting the number of apps accessible for the Fire HD. Fire HD software updates can be received OTA or from the support websites.[2][13][14]

The Fire HD 7" second generation used Fire OS 3. Note that although this version is called the Fire HD 7", it is not the successor to the original Fire HD. This model is the successor to the Fire second generation. The Fire HD models second generation were updated to FireOS 4.1.1, based on Android 4.4.4, in Q3 2014.

The Fire HD 6" and 7" third generation uses Fire OS 4 "Sangria", which features profiles so each user on the tablet can have their own settings and apps.[15]

The Fire HD 8 and 10 fifth generation uses Fire OS 5 "Bellini" and was released in late 2015. In September 2016, Amazon released virtual assistant Alexa for the sixth generation Fire tablets.[16]

The 2018 model of the Fire HD 8 has Fire OS 6 preinstalled, which is based on Android 7. It also includes Alexa Hands-Free and the new "Show Mode", in which the tablet acts like an Amazon Echo Show.[17]

Models

Generation (within Fire tablets)2nd generation (2012) 2.5th generation (2012) 3rd generation (2013) 4th generation (2014)5th generation (2015) 6th generation (2016)7th generation (2017) 8th generation (2018)
Model Kindle Fire HD 7" Kindle Fire HD 8.9" Kindle Fire HD Fire HD 6 and 7Fire HD 8 and 10 Fire HD 8Fire HD 10 Fire HD 8
Release date September 14, 2012 November 20, 2012 October 2, 2013 October 2, 2014September 30, 2015 September 21, 2016 June 7, 2017October 11, 2017 October 4, 2018
StatusDiscontinuedSupportedAvailableCurrentCurrent
OSBased on Android 4.0.3 Fire OS 4Fire OS 5Fire OS 6
System Version 7.5.1[18] 8.5.1[19] 4.5.5.3[20] 5.6.1.0[21][22]5.6.3.0[23][24][25][26][27] 6.3.0.1 [28]
ScreenSize (diagonal)7|in|cm|abbr=on}}8.9|in|cm|abbr=on}}7|in|cm|abbr=on}}6|in|cm|abbr=on}}
HD 7: {{convert|7|in|cm|abbr=on}}		8|in|cm|abbr=on}}
HD 10: {{convert|10|in|cm|abbr=on}}		{{convert|8|in|cm|abbr=on}}10.1|in|cm|abbr=on}}8|in|cm|abbr=on}}
Resolution 1280 × 800 1920 × 1200 1280 × 8001920 x 12001280 x 800
Density 216 ppi 254 ppi 216 ppi HD 6: 252 ppi
HD 7: 216 ppi		HD 8: 189 ppi
HD 10: 149 ppi 		189 ppi224 ppi189 ppi
CPUMakerTexas InstrumentsMediaTek
KindDual-core OMAP4Quad-core ARM big.LITTLEQuad-core
Model 4460 HS 4470 HSMT8135V[29][30]MT8163V/B MT8173 MT8163V/B
Cores 2x ARM Cortex-A9 @ 1.2 GHz 2x ARM Cortex-A9 @ 1.5 GHz2x ARM Cortex-A15 @ 1.5 GHz
2x ARM Cortex-A7 @ 1.2 GHz		4x ARM Cortex-A53 @ 1.3 GHz 2x ARM Cortex-A72 @ 1.8 GHz
2x ARM Cortex-A53 @ 1.4 GHz 		4x ARM Cortex-A53 @ 1.3 GHz
Width32-bit64-bit
GPUDesignerImagination TechnologiesARM Holdings Imagination Technologies ARM Holdings
KindPowerVRMali PowerVR Mali
Model SGX540 SGX544G6200T720 MP2 GX6250 T720 MP2
Clock384 MHz[31]450 MHz 650 MHz [32] {{dunno}} {{dunno}} {{dunno}}
RAM1 GiB1.5 GiB[31]2 GiB1.5 GiB[31]
StorageInternal Wi-Fi16 GB or 32 GB8 GB or 16 GBHD 8: 8–16 GB
HD 10: 16–64 GB 		16 GB or 32 GB32 GB or 64 GB16 GB or 32 GB
+Cellular {{n/a}} 32 GB or 64 GB colspan="7" {{n/a}}
External colspan="4" {{n/a}}Up to 128 GB microSDXC Up to 200 GB microSDXC Up to 256 GB microSDXC Up to 400 GB microSDXC
CameraBack colspan="3" {{n/a}} 2 MP 5 MP 2 MP
Front1.3 MP HD 720p rowspan="2" {{n/a}} 0.3 MP 1.3 MP HD 720p 0.3 MP2 MP
MicrophoneYesYes
HDMImicroHDMI {{n/a}} Amazon HDMI Adapter colspan="5" {{n/a}}
BluetoothBluetooth 3.0 + EDR
(HID and A2DP profiles only)		 Bluetooth 4.0 + EDR
(HID and A2DP profiles only) 		Bluetooth 4.0 LEBluetooth 4.1 LE
Wireless Wi-FiDual-band 802.11 a/b/g/n Single-band 802.11 b/g/n Dual-band 802.11 a/b/g/n/ac Dual-band 802.11 a/b/g/nDual-band a/b/g/n/acDual-band 802.11 a/b/g/n
+Cellular {{N/A}} adds 4G LTE colspan="7" {{n/a}}
Location Wi-FiWi-Fi based
+Cellular rowspan="5" {{N/A}} adds GPS and aGPS colspan="7" rowspan="5" {{n/a}}
Proximity Wi-Fi colspan="1" {{n/a}}
+Cellular Yes
Compass Wi-Fi colspan="1" {{n/a}}
+Cellular Yes
Light sensorYes colspan="3" {{n/a}} Yes
AccelerometerYes
GyroscopeYes colspan="3" {{n/a}}
Barometer colspan="9" {{N/A}}
Weight Wi-Fi{{convert|395|g|oz|abbr=on}}545|g|oz|abbr=on}}{{convert|345|g|oz|abbr=on}}HD 6: {{convert|290|g|oz|abbr=on}}
HD 7: {{convert|337|g|oz|abbr=on}}		HD 8: {{convert|311|g|oz|abbr=on}}
HD 10: {{convert|432|g|oz|abbr=on}}		341|g|oz|abbr=on}}369|g|oz|abbr=on}}500 g (17.7 oz)363 g (12.8 oz)
+Cellular {{n/a}} 567|g|oz|abbr=on}} colspan="7" {{n/a}}
Dimensions193|x|137|x|10.3|mm|in|abbr=on|disp=br()}}240|x|160|x|8.8|mm|in|abbr=on|disp=br()}}191|x|128|x|10.6|mm|in|abbr=on|disp=br()}}160|x|103|x|10.7|mm|in|abbr=on|disp=br()}}
HD 7: {{convert|191|x|128|x|10.6|mm|in|abbr=on|disp=br()}}		HD 8: {{convert|214|x|128|x|7.7|mm|in|abbr=on|disp=br()}}
HD 10: {{convert|262|x|159|x|7.7|mm|in|abbr=on|disp=br()}}		214|x|128|x|9.2|mm|in|abbr=on|disp=br()}}214|x|128|x|9.7|mm|in|abbr=on|disp=br()}}262 mm x 159 mm x 9.8 mm (10.3 in x 6.3 in x 0.4 in)214 mm x 128 mm x 9.7 mm (8.4 in x 5.0 in x 0.4 in)
Battery 4400 mAh 6000 mAh 4400 mAh 8.5 hours3830mAh / 8 hours 4750 mAh/ 12 hours6300mAh / 10 hours10 hours
  • table above only includes data on "HD"-branded tablets

See also

  • Comparison of:
    • Tablet computers
    • E-book readers

References

1. ^{{cite web |url=https://arstechnica.com/gadgets/2012/09/kindle-fires-4g-package-offers-250mb-of-data-a-month-for-50-a-year/ |title=Kindle Fire's 4G package offers 250MB of data a month for $50 a year |first=Andrew |last=Cunningham |date=6 September 2012 |work=Ars Technica |publisher=Condé Nast |accessdate=6 September 2012}}
2. ^1 {{cite web|title=Kindle Fire Device and Feature Specifications|url=http://developer.amazon.com/sdk/fire/specifications.html|accessdate=3 December 2012}}
3. ^{{cite web|url=https://www.wired.com/geekmom/2012/09/kobo-new-ereaders/|title=Kobo Announces Their New E-Readers|first=|last=Jules|publisher=}}
4. ^[https://www.amazon.es/s/?__mk_es_ES=%C5M%C5Z%D5%D1&url=search-alias%3Daps&field-keywords=Kindle+Fire+HD Amazon.es: Kindle Fire HD]
5. ^[https://www.amazon.it/s/?__mk_it_IT=%C5M%C5Z%D5%D1&url=search-alias%3Daps&field-keywords=Kindle+Fire+HD&x=0&y=0 Amazon.it: Kindle Fire HD]
6. ^{{cite web|url=https://www.amazon.fr/s/?__mk_fr_FR%253D%25C5M%25C5Z%25D5%25D1%2526url=search-alias=aps&field-keywords=Kindle+Fire+HD|title=Amazon.fr : Kindle Fire HD|website=www.amazon.fr}}
7. ^{{cite web|url=https://www.amazon.de/s/?__mk_de_DE%253D%25C5M%25C5Z%25D5%25D1%2526url=search-alias=aps&field-keywords=Kindle+Fire+HD|title=Suchergebnis auf Amazon.de für: Kindle Fire HD|website=www.amazon.de}}
8. ^{{cite web|url=https://www.amazon.co.uk/s/?url=search-alias=aps&field-keywords=Kindle+Fire+HD&x=0&y=0|title=Amazon.co.uk: Kindle Fire HD|website=www.amazon.co.uk}}
9. ^{{cite web|url=http://www.cnet.com/news/amazon-kindle-fire-tablets/|title=Amazon Kindle Cheat Sheet|work=CNET|accessdate=2014-09-19}}
10. ^{{cite web|title=Amazon's new Fire HD 8 is its first tablet with Alexa|url=https://www.engadget.com/2016/09/08/amazon-fire-hd-8-tablet-with-alexa/|website=engadget.com|accessdate=26 September 2016}}
11. ^1 2 3 {{cite web|url=https://www.youtube.com/watch?v=VYi1jZXz9Kg|title=Amazon Kindle Press Conference — September 6, 2012 |work=YouTube}}
12. ^[https://www.theverge.com/circuitbreaker/2016/6/2/11838204/amazon-adds-metal-fire-10-64gb Amazon now sells a metal version of its Fire 10 tablet] The Verge Retrieved 2 June 2016.
13. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/?ie=UTF8&nodeId=201016350|title=Amazon.com Help: Kindle Fire HD 7" (2nd Generation) Software Updates|website=www.amazon.com}}
14. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/?ie=UTF8&nodeId=201075600|title=Amazon.com Help: Kindle Fire HD 8.9" (2nd Generation) Software Updates|website=www.amazon.com}}
15. ^{{cite web|url=http://www.androidguys.com/2014/09/17/whats-new-amazons-fire-os-4-0-sangria/|title=What's new with Amazon's Fire OS 4.0 "Sangria"?|work=AndroidGuys}}
16. ^{{cite web|url=http://fortune.com/2016/09/08/amazon-fire-alexa/|title=Amazon Debuts Its First Fire Tablet With Virtual Assistant Alexa|website=fortune.com|accessdate=26 September 2016}}
17. ^{{Cite news|url=https://www.xda-developers.com/amazon-fire-hd-8-android-nougat/|title=Amazon's new Fire HD 8 tablets with Fire OS 6 (Android Nougat)|date=2018-09-06|work=xda-developers|access-date=2018-10-05|language=en-US}}
18. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=201016350|title=Amazon.com Help: Kindle Fire HD 7" (2nd Generation) Software Updates|website=www.amazon.com}}
19. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=201075600|title=Amazon.com Help: Kindle Fire HD 8.9" (2nd Generation) Software Updates|website=www.amazon.com}}
20. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=201357170|title=Amazon.com Help: Kindle Fire HD (3rd Generation) Software Update|website=www.amazon.com}}
21. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html?nodeId=201596860|title=Amazon.com Help: Fire HD 6 (4th Generation) Software Updates|website=www.amazon.com}}
22. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html?nodeId=201596850|title=Amazon.com Help: Fire HD 7 (4th Generation) Software Updates|website=www.amazon.com}}
23. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html?nodeId=201830200|title=Amazon.com Help: Fire HD 8 (5th Generation) Software Updates|website=www.amazon.com}}
24. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html?nodeId=201830190|title=Amazon.com Help: Fire HD 10 (5th Generation) Software Updates|website=www.amazon.com}}
25. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html?nodeId=202073860|title=Amazon.com Help: Fire HD 8 (6th Generation) Software Updates|website=www.amazon.com}}
26. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=202194760|title=Fire HD 8 (7th Generation) Software Updates|website=www.amazon.com}}
27. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=202194760|title=Fire HD 10 (7th Generation) Software Updates|last=|first=|date=|website=www.amazon.com|archive-url=|archive-date=|dead-url=|access-date=}}
28. ^{{cite web|url=https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=GPX9XJHC582PBRQG|title=Fire HD 8 (8th Generation) Software Updates|website=www.amazon.com}}
29. ^{{cite web|url=http://www.ifixit.com/Teardown/Kindle+Fire+HD+6+Teardown/29815|title=Kindle Fire HD 6 Teardown|date=8 October 2014|publisher=}}
30. ^MediaTek press release
31. ^1 2 {{cite web|url=https://developer.amazon.com/appsandservices/solutions/devices/kindle-fire/specifications/01-device-and-feature-specifications|title=Tablet Device Specifications - Amazon Apps & Services Developer Portal|website=developer.amazon.com}}
32. ^{{cite web|url=https://www.arm.com/products/multimedia/mali-gpu/high-area-efficiency/mali-t720.php|title=Graphics and Multimedia Processors - Mali-T720 GPU – Arm Developer|first=Arm|last=Ltd.|website=ARM Developer}}

External links

  • [https://www.amazon.com/b/?ie=UTF8&node=6669703011 Official Amazon.com site for Fire Tablets]
  • [https://arstechnica.com/gadgets/2012/09/amazon-shows-off-new-kindle-fire-shipping-sept-14-for-159/ Kindle Fire HD Press Event Article at Ars Technica]
{{Amazon}}{{Android tablets}}

7 : Amazon hardware|Android (operating system) devices|Tablet computers|Touchscreen portable media players|Products introduced in 2012|Products introduced in 2013|Products introduced in 2014
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