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Infotaula equipament informàticArnaudh~cawiki/proves
Característiques
CPUQuad-core 2.26 GHz Krait 400 (similar to ARM Cortex-A15)
GPUAdreno 330 450 MHz
Sistema operatiuAndroid KitKat 4.4.2
Pantalla4.95 in (126 mm) diagonal IPS LCD with Corning Gorilla Glass 3
1080×1920 px (445 PPI)
Càmera posterior8 MP 1/3.2-inch CMOS sensor with OIS,[1] f/2.4 aperture[2] and LED flash.
Càmera frontal1.3 MP
AltresMulti-color LED notification light[3]
Monaural lateral loudspeaker[1][4]

El Nexus 5 (anomenat en clau Hammerhead)[5] és un smartphone desenvolupat conjuntament per Google i LG Electronics que treballa en Android. Sent el successor del Nexus 4, és el cinquè aparell de la sèrie Google Nexus. El Nexus 5 es va donar a conèixer el 31 d'octubre de 2013, i fou posat a la venda el mateix dia en blanc i negre a Google Play.

The Nexus 5's hardware is similar to that of the LG G2, with a Snapdragon 800 system-on-chip (SoC), and a 4.95-inch 1080p display. The Nexus 5 is also the first device to feature version 4.4 of Android.

Release[modifica]

The Nexus 5 was initially released for ordering at Google Play Store on 31 October 2013, in 16 GB and 32 GB versions.[6]

As of December 2013, a revised version of the Nexus 5 became available, featuring bigger speaker and microphone holes to allow louder audio, and better fitted buttons and SIM card tray. It also improves durability of the display, making it less prone to shattering. This revised version is marked with batch number 311K, while the initial version had batch number 310K.[7][8] First digit of the batch number signifies the year ("3" for 2013, for example), and the remaining two digits signify the month ("11" for November, for example); therefore, a Nexus 5 manufactured in January 2014 would be the newer hardware revision with 401K as the batch number.[9][10]

Specifications[modifica]

Hardware[modifica]

Back, front and side view of a black Nexus 5.

The exterior of the Nexus 5 is made from a polycarbonate shell with similarities to the new Nexus 7, unlike its predecessor, which used a glass-based construction. Three exterior colors are available: black, white and red.[11][12]

Its hardware contains similarities to the LG G2; it is powered by a 2.26 GHz quad-core Snapdragon 800 processor with 2 GB of RAM, either 16 or 32 GB of internal storage, and a 2300 mAh battery. The Nexus 5 uses a 4.95-inch (marketed as 5-inch) 445 PPI 1080p IPS display, and includes an 8-megapixel rear-facing camera with optical image stabilization (OIS). The Nexus 5 supports LTE networks where available, unlike the Nexus 4 which unofficially supported LTE on AWS Band 4 only with a hidden software option, but was not formally approved or marketed for any LTE use.[13][14]

There are two variants of the Nexus 5; one is specific to North America (LG-D820), and the other is designed for the rest of the world (LG-D821). The differences between these two variants are in supported cellular frequency bands; see the infobox on the right for more details.[13]

Like its predecessors, the Nexus 5 does not have a microSD card slot,[15] while it features a multi-color LED notification light.[3] Despite the fact there is a pair of speaker grilles present on the lower edge of the Nexus 5, there is only one speaker; one grille is for a speaker, and another is for a microphone.[1][4]

Notable new hardware features also include two new composite sensors: a step detector and a step counter. These new sensors allow applications to easily track steps when the user is walking, running, or climbing stairs. Both sensors are implemented in hardware for low power consumption.[16]

Software[modifica]

Article principal: Android (operating system)

Nexus 5 is the first Android device to ship with Android 4.4 "KitKat", which has a refreshed interface, improved performance, improved NFC support (such as the ability to emulate a smart card), a new "HDR+" camera shooting mode, native printing functionality, a screen recording utility, and other new and improved functionality.

The device also ships with Google Now Launcher, a redesigned home screen which allows users to quickly access Google Now on a dedicated page, and allows voice search to be activated on the home screen with a voice command. Unlike the stock home screen, Google Now Launcher is not a component of Android itself; it is implemented as part of the Google Search application. Until the 26 February 2014, Google Now Launcher was exclusively shipped by default on Nexus 5 devices, and was not enabled in the Android 4.4 updates for any other Nexus device. While an update to the Google Search application containing Google Now Launcher (which itself was tweaked to improve compatibility with other devices as well) was publicly released shortly after the Nexus 5's release, the launcher itself could not at the time be enabled without installing a second shim application.[17][18][19]

Hangouts, which now supports text messaging, is used as the default text messaging application.[16][20]

In December 2013, the Nexus 5 began receiving the Android 4.4.1 update, which fixes issues with auto focus, white balance, HDR+ and other camera issues,[21][22] while introducing some other camera issues for low-light scenes.[23] It also fixes low speaker volume output in certain applications.[24] Android 4.4.2 update followed in a few days, providing further bugfixes and security improvements.[25]

Besides official Android releases, third-party builds are also available, including CyanogenMod and OmniRom.[26][27]

Reception[modifica]

CNET gave the Nexus 5 a "4 out of 5 stars" review, and voted it the best tech product in December 2013 on their CNET 100 leaderboard. Overall, they praised its "strong performance, high-end specs, and ultra-affordable price", while the downsides were described as "screen is dimmer than its competitors' and its camera struggles under auto settings."[28] Camera issues were addressed with the later release of Android 4.4.1.[22]

Known issues[modifica]

  • Some devices show hissing, popping and loud static with the built-in microphone.[29]
  • While changing the volume using the volume rocker with a headset connected, system notification sound is played through both the speaker and connected headset.[30]
  • Video recording quality issues at night.[31]
  • Connection problems with 5 GHz Wi-Fi access points.[32]
  • The camera software has a bug that sometimes will consume the battery at a faster rate than normal. Google has fixed the issue internally and is pending for a future release.[33]
  • When losing signal, the phone will sometimes not be able to reconnect to the network until rebooted. Google is aware of the issue and looking for a fix.[34]

See also[modifica]

References[modifica]

  1. ↑ 1,0 1,1 1,2 «Nexus 5 Teardown». ifixit.com, 2013. [Consulta: November 15, 2013].
  2. ↑ «LG Nexus 5 is official, runs Android 4.4 KitKat». gsmarena.com. [Consulta: November 2, 2013].
  3. ↑ 3,0 3,1 Reminder: The Nexus 5 has a Beautiful Multi-Color LED Notification Light, Take Advantage of It – Droid Life
  4. ↑ 4,0 4,1 Nickinson, Phil. «The Nexus 5 speaker: Yes, there's only one — and software may be hurting what you hear [updated]». androidcentral.com, November 6, 2013. [Consulta: November 15, 2013].
  5. ↑ LG 'Hammerhead' Nexus 5 boasts Snapdragon 800, 1080p display
  6. ↑ Fitzsimmons, Michelle. «16GB Nexus 5 supplies in and out at Google Play Store». TechRadar, October 31, 2013. [Consulta: November 1, 2013].
  7. ↑ Ionut Arghire. «Google Replaces Faulty Nexus 5 Units with Slightly Modified Model». softpedia.com, 11-12-2013. [Consulta: 12 desembre 2013].
  8. ↑ Tim Johnson. «Why is Google Quiet about Nexus 5 Hardware Changes». thenexus5.com, 15-12-2013. [Consulta: 18 desembre 2013].
  9. ↑ «[INFO LG Nexus 4 Production Date and Place Identification - xda-developers.htm]». XDA Developers, 19th December 2012, last edited 10th July 2013. [Consulta: 4 febrer 2014].
  10. ↑ Souppouris, Aaron «Nexus 4 sales estimated at 375,000 by enthusiasts decoding serial numbers». The Verge, January 3, 2013 [Consulta: 4 febrer 2014].
  11. ↑ Bogdan Petrovan. «Nexus 5 black vs white comparison: what’s your choice?». androidauthority.com, 09-11-2013. [Consulta: 29 desembre 2013].
  12. ↑ Chris Smith. «The red Nexus 5 is real and available now from the Google Play Store». techradar.com, 24-02-2014. [Consulta: 24 febrer 2014].
  13. ↑ 13,0 13,1 «Google Announces The Nexus 5 and Android 4.4 Details». Anandtech. [Consulta: November 1, 2013].
  14. ↑ «Nexus 4 Includes Support for LTE on Band 4 (AWS)». [Consulta: November 23, 2012].
  15. ↑ Anthony, Sebastian. «Nexus 5 released today: $350 (off-contract) for a KitKat-powered superphone». extremetech.com, October 31, 2013. [Consulta: November 4, 2013].
  16. ↑ 16,0 16,1 Error de citació: Etiqueta <ref> no vàlida; no s'ha proporcionat text per les refs nomenades about-kitkat
  17. ↑ Amadeo, Ron. «"Google Now Launcher" hits Play Store, brings Google homescreen to GPE & Nexus devices». arstechnica.com, 26-02-2014. [Consulta: 27 febrer 2014].
  18. ↑ Brian Klug. «Android 4.4 Factory Images Now Available for Nexus 4, 7 (2012 and 2013), and 10». AnandTech, 14-11-2013. [Consulta: 19 novembre 2013].
  19. ↑ «The Nexus 5’s “exclusive” launcher suspiciously receives support for other devices». Ars Technica. [Consulta: 19 novembre 2013].
  20. ↑ Bohn, Dieter. «Google's Nexus 5 with KitKat available today, starting at $349: hands-on impressions». The Verge, October 31, 2013. [Consulta: November 1, 2013].
  21. ↑ Official Nexus Google+ page. «Android 4.4.1 Released to Nexus 5». Google Plus, 05-12-2013. [Consulta: 6 desembre 2013].
  22. ↑ 22,0 22,1 David Pierce. «Fixing the Nexus 5: with a new version of Android, Google tackles the camera». theverge.com, 05-12-2013. [Consulta: 6 desembre 2013].
  23. ↑ What the Android 4.4.1 update means for Google's Nexus 5 shooters
  24. ↑ Rajesh Pandey. «What’s new in Android 4.4.1». Android Beat, 06-12-2013. [Consulta: 7 desembre 2013].
  25. ↑ Artem Russakovskii. «Android 4.4.2 (KOT49H) Is Already Rolling Out To All Nexus Devices - Here Are The OTA ZIP Links For Manual Updating». Android Police, 09-12-2013. [Consulta: 9 desembre 2013].
  26. ↑ «Information: Google Nexus 5 ("hammerhead")». cyanogenmod.org, 15-11-2013. [Consulta: 2 gener 2014].
  27. ↑ Deepak Gupta. «List of Custom Roms for Nexus 5». Kavtech, 02-01-2014. [Consulta: 2 gener 2014].
  28. ↑ Lynn La. «Google Nexus 5 Review - Watch CNET's Video Review». CNET, 01-11-2013. [Consulta: 27 desembre 2013].
  29. ↑ Some Nexus 5s Can Suffer From Terrible Audio Quality During Calls And Recordings
  30. ↑ «Nexus 5 and Android 4.4 KitKat Bugs / Glitches». webniraj.com. [Consulta: 30 novembre 2013].
  31. ↑ Having issues with Android 4.4? You're not alone - Android Community
  32. ↑ Some Android Devices Having Major Connection Problems With 5 GHz Wi-Fi Access Points
  33. ↑ Android Issue 60058: mm-qcamera-daemon cpu usage
  34. ↑ Android Issue 66254: Fter losing signal not reconnecting to network

External links[modifica]

Plantilla:Android smartphones


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