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HTC Evo 4G

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HTC Evo 4G
ManufacturerHTC Corporation
Slogan"The ultimate multimedia experience at Sprint 3G and 4G speeds"[1]
Compatible networksSprint
Availability by regionJune 4, 2010 [2]
Form factorSlate/Candybar smartphone
Dimensions122 mm (4.8 in) (h)
66 mm (2.6 in) (w)
12.7 mm (0.50 in) (d)
Weight170 g (6.0 oz)
Operating systemAndroid 2.1 "Eclair" Android 2.2 "Froyo"
CPUQualcomm QSD8650 (Snapdragon), 1 Ghz
Memory1 GB ROM (358 MB Free) , 512 MB RAM
Removable storage8 GB microSD (up to 32 GB supported)
BatteryLi-ion, 1500 mAh
Display4.3-inch, 480×800 TFT LCD with capacitive multi-touch screen, 216.97 ppi
Rear camera8-megapixel autofocus with dual LED flash, rear-facing
Front camera1.3 megapixel, front-facing
ConnectivityCDMA 800/1900 MHz EVDO Rev. A, WiMAX 2.5 to 2.7GHz; 802.16e;[3] Wi-Fi (802.11b/g/n[4]); Bluetooth 2.1 with A2DP stereo and EDR;
Data inputsMulti-touch Accelerometer
OtherWi-Fi Hot Spot, Motion Sensor, Proximity Sensor, Video Kick Stand, FM-Radio, GPS navigation, Digital Compass

The HTC Evo 4G (trademarked in capitals as EVO 4G) is a smartphone developed by HTC and marketed as Sprint's flagship smartphone, running on its "4G" network which is currently a non-standardized platform. Currently there is no 4G standard set forth by the wireless standards committee. The smartphone launched June 4, 2010.[5] [6] [7]


History

Development

During development, the device was known as the HTC "Supersonic" which was leaked throughout the internet and was already known as being an Android version of the HTC HD2.

Release

The device was released on June 4, 2010 in the United States through Sprint. [8] It became the top-selling launch day phone on Sprint, surpassing the Palm Pre.[9].

Features

The HTC EVO 4G features hardware very similar to the HTC HD2, a smartphone running Windows Mobile. The device is sometimes referenced as the Android version of the HTC HD2 although a variety of features are only available on the EVO 4G (video calling for example).

Android OS and HTC Sense UI

The device runs the Android operating system and features the HTC Sense user interface. The device first came with Android OS 2.1 "Eclair" although Android OS 2.2 "Froyo" has since been rolled out through OTA (Over-The-Air) making it the third device to officially run "Froyo" and the first to be officially rolled out by a US network.[10]


Screen and Input

Unlike many other smartphones in the consumer market the HTC EVO 4G boasts a huge TFT LCD capacitive touchscreen with a pixel density of 216.97 pixels per inch (ppi) on a 4.3-inches (480-by-800) display. The display is capable of sensing multiple fingers at one time and is designed to be used with a bare finger or multiple fingers for multi-touch sensing.

Processor and Memory

The HTC EVO 4G is powered by the Qualcomm QSD8650 chipset which contains a Cortex-A8 microprocessor codenamed "Snapdraggon" clocked at 1GHz and an embedded Adreno 200 graphics chip capable of up to 22 million triangles per second. It features 512MB of eDRAM which allows a smoother experience with Android OS, applications, and the HTC Sense user interface. The device also features 1024MB of ROM which is mainly allocated for use with the system software.

Cameras

The device features an 8 megapixel camera on the rear which is capable of recording videos at up to 720p at 30 frames per second and allows users to choose between H.264 or MPEG 4 compression. The rear-facing camera also features dual-flash. It also features a 1.3 megapixel front-camera which is used mainly for video calling though it can be used for other purposes too.

Storage

Like many other Android mobile devices, the HTC EVO 4G features a microSD slot in addition to the built-in ROM which allows for user-expandable storage. The device supports microSD cards of sizes up to 32GB. The device comes pre-installed with an 8GB microSDHC card.

Input

Input and interaction with the device happens mainly on the screen. Users can choose between two different text input options, one is a compact QWERTY on-screen keyboard while the other is a phone keypad which is also on-screen, both of which can be used in the landscape orientation. The device also features an accelerometer which can sense the orientation of the device and allows expanded interaction with Android OS and applications. A proximity sensor is also featured on the phone which is placed near the top speaker of the phone and detects any interferences or objects in its way. The proximity sensor is used when making phone calls, allowing the device to know if a user has the device near it's ear, which in turn then turns off the screen to avoid accidental interaction and to save battery power. The proximity sensor can also be used in applications allowing expanded interaction with the application. A magnetometer is also built-in the HTC EVO 4G, which is used to measure the strength and/or direction of the magnetic field in the vincity of the device. The device also features a kickstand on the back for viewing media and such.

Connectivity

The device features a CDMA cellular radio that supports WiMax 4G in addition to 3G EVDO support allowing faster download and upload speeds when 4G is available. Although the device is marketted as a 4G phone, there is no 4G standard set forth by the wireless standards comittee yet. The HTC EVO 4G also features an HDMI-out port which allows users to display content on a high-definition television set. An FM radio is also built-in which lets users listen to local radio stations.

Battery and Power

The device comes pre-installed with a removable Li-On 1500mAh battery and is user-replaceable.

Wi-Fi Hot Spot

The device ships with a feature called "Wi-Fi Hot Spot" which allows the device to be used as a mobile broadband router. It can connect up to 8 devices to it's mobile broadband connection.

Issues

30 Frames Per Second Cap

[11] Some users have experienced noticeable lag and/or slowness while using the phone. Various reports throughout the internet indicated that the device may have a 30 frames per second cap explaining some users lag and slowness of the phone at times. Initially it was first thought of as an "artificial" cap although it was later announced by an HTC representative that it was a hardware cap making software updates uncapable of fixing the 30 FPS cap issue although HTC has also noted that the 30 FPS cap does not affect the usability and speed of the phone at all asking that users name at least one app or game that has been affected by the issue. [12]

However, after the release of the kernel source code, it was shown by rooting the device and flashing a modified kernel, users could reach well over 50 FPS. [13]

File:HTC-evo-rear.jpg
Rear View of the Evo

Design

The HTC EVO 4G follows the same design the HTC HD2 features although there are small subtle differences. A 4.3" multi-touch capacitive display takes up the whole front of the device in addition to the front speaker and front-camera on the top and the four buttons which are Home, Menu, Back, and Search. A metal volume rocker is also featured on the right side of the phone and a Sleep/Lock button on the top right. On the rear of the phone, the camera, dual flash, speakers, and the kickstand are featured. Unlike the HTC HD2, the buttons on the front of the device are embedded under the glass of the screen and the rear of the phone has a circular shaped camera compared to the square-shaped on the HTC HD2. The phone also features a very slim profile although also very wide due to the screen size and has very similar dimensions to the HTC HD2.

See also

References

  1. ^ "Sprint | News Release". Newsreleases.sprint.com. Retrieved 2010-06-24.
  2. ^ "Sprint | News Release". Newsreleases.sprint.com. 2010-06-04. Retrieved 2010-06-24.
  3. ^ "HTC Mobile Phones - EVO Sprint - Overview". Htc.com. Retrieved 2010-06-24.
  4. ^ "HTC Evo 4G Update Back With Improved Wi-Fi". www.phonescoop.com. Retrieved 2010-07-04.
  5. ^ "Sprint HTC EVO™ 4G". Now.sprint.com. Retrieved 2010-06-24.
  6. ^ "Is Sprint Too Early With The HTC EVO 4G Phone? The device is the first [[4G]] capable phone sold in the United States.
  7. [[#cite_ref-7|^]] [http://gizmodo.com/5500343/sprints-htc-evo-the-first-ever-4g-phone-meet-the-new-terrific "Sprint's HTC Evo, the First Ever 4G Phone: Meet the New Terrific"]. Gizmodo.com. 2010-03-23. Retrieved 2010-06-24.
  8. [[#cite_ref-8|^]] ". ChannelWeb. 25 March 2010. Retrieved 2010-03-26. {{cite news}}: External link in |title= (help); URL–wikilink conflict (help); line feed character in |title= at position 127 (help)
  9. ^ "HTC EVO 4G overtakes Palm Pre for best-selling launch day on Sprint". Engadget. Retrieved 2010-06-24.
  10. ^ "Sprint says "Us, too!" when it comes to Froyo". Retrieved 2010-06-26.
  11. ^ http://www.engadget.com/2010/06/10/htc-evo-4gs-graphics-capped-at-30fps/
  12. ^ http://forum.xda-developers.com/showpost.php?p=6852570&postcount=29
  13. ^ http://forum.xda-developers.com/showthread.php?t=719763
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