T-Mobile Sidekick

Danger, Inc.

Company type	Private
Industry	Consumer electronics, Telecommunications
Founded	January 1, 1999 (1999-01-01)
Founder	Andy Rubin
Fate	Acquired by Microsoft in 2008; cloud service terminated in 2011
Successor	Microsoft Kin (technology used)
Headquarters	United States
Products	Danger Hiptop (T-Mobile Sidekick) smartphones
Owner	Microsoft (from 2008)

Template:Infobox Mobile phone

The Danger Hiptop—often stylized as hiptop—also known under the brand name T-Mobile Sidekick, represents a line of mobile smartphones and communicators created by Danger, Inc. between 2002 and 2010, developed collaboratively with T-Mobile US. Most devices in the series were produced by Sharp Corporation. The Hiptop devices featured a horizontal orientation for two-handed use, enabling typing via a full QWERTY keyboard revealed by a display that flips out and rotates 180 degrees on a hinge (with the exception of the Hiptop Slide model). These smartphones operated on a cloud-based platform built with Java, which synchronized user data with backend services maintained by Danger. This infrastructure supported functionalities such as email, instant messaging, and an app marketplace.

Founded by Andy Rubin, who later created Android, Danger introduced the original Hiptop on October 1, 2002, with manufacturing handled by Flextronics. Marketed as a "PDA phone", it integrated cellular phone capabilities with a full HTML web browser, embedded AOL Instant Messenger, a physical keyboard, and a navigation scroll wheel. It operated over T-Mobile’s GSM and GPRS networks. The second generation Hiptop/Sidekick launched in 2004, produced by Sharp, featuring a slimmer profile and adding a VGA camera. In 2006, the third generation replaced the scroll wheel with a trackball and introduced enhancements such as Bluetooth connectivity, a music player, and faster EDGE data speeds. The product line expanded in 2007 to include the budget-conscious Sidekick iD model with reduced features and the Motorola-manufactured Sidekick Slide featuring a sliding form factor rather than the traditional swivel screen. The top-tier fourth-generation device was the Sidekick LX, which increased screen size to 3.0 inches. Subsequent releases included the Sidekick 2008 and the final iteration, Sidekick LX 2009, which incorporated hardware improvements like 3G connectivity and social networking integration. This last model was also marketed under alternative names such as Mobiflip or Sharp Jump, employing modified software that did not rely on Danger’s cloud services.

Unlike contemporaries such as Palm and BlackBerry, which primarily appealed to business users during their early years, the Hiptop/Sidekick gained significant popularity among younger demographics. In 2008, Microsoft acquired Danger, Inc. for $500 million, utilizing its technology to develop the ill-fated Microsoft Kin. Danger's cloud service was terminated on May 31, 2011, marking the end of Hiptop/Sidekick data support after nearly nine years. Later that year, the brand was resurrected with the launch of a 4G device running Android 2.2 Froyo, manufactured by Samsung Electronics and maintaining a form factor reminiscent of earlier models.

The Sidekick achieved considerable popularity in the United States where it garnered notable attention within American pop culture, eventually attaining iconic status. Additionally, some versions were distributed internationally with limited success in Canada through Fido/Rogers, Australia via Telstra, Singapore, and several European markets.

Typical characteristics

File:Danger Hiptop 1 - 5004528875.jpg

The original Hiptop closed, highlighting the Menu and Jump buttons on the left side

A distinctive aspect of the Hiptop series is its line-by-line scrolling capability, which is uncommon among most multifunctional mobile phones. This feature allows users to scroll one line at a time rather than jumping entire pages, and it is consistently implemented across all applications. Alongside this, the "Jump" button and other physical controls are standard throughout the product line.

File:Sidekick 3!.jpg

The Hiptops were designed for two-handed landscape use (example shown: T-Mobile Sidekick 3)

On the device's left edge, there are two buttons labeled "menu" and "jump," while the right side contains "back" and "cancel" buttons. Except for the original model, all Hiptops incorporate a directional pad on the left and a trackball on the right. The directional pads on the Hiptop 2 and Slide models include internal multicolored LEDs that serve as indicators for ringers and notifications. Similarly, the trackballs on models 3, 2008, LX, and 2009 feature internal multicolored LEDs fulfilling the same notification role. Additionally, two phone control buttons are located on the right side: one for sending calls (which also functions as page-down) and another for ending calls (also acting as page-up). The top edge offers two shoulder buttons dedicated to specific applications, while volume adjustment controls and a power button are positioned at the bottom.

Another notable characteristic of the Hiptop devices is their screen visibility without requiring backlighting. This feature was present in all models up to but excluding the LX variant. Unlike many other brands that employed LCD screens dependent on backlight for visibility, Hiptop devices—and similarly Palm Treo models starting from Treo 600—utilized transflective liquid crystal displays. These displays remain readable in direct sunlight without backlighting, allowing users to view instant messages, emails, and other notifications clearly without needing to pick up the device.

hiptop/T-Mobile Sidekick (Flextronics)

File:Color sidekick.jpg

T-Mobile Color Sidekick

The original Hiptop was officially announced on September 6, 2001, with its market release occurring on October 1, 2002. It was distributed by T-Mobile within the United States, initially priced at $200 plus a monthly fee of $40. A subsequent update introduced a color LCD screen capable of displaying 65,000 colors instead of the original monochrome display. This upgraded version launched on June 6, 2003 through T-Mobile with a retail price of $299.99.

From its inception, Hiptop devices incorporated keys such as "Menu," "Back," and "Jump" that remained accessible even when the device was closed. The Hiptop also included an integrated speaker dedicated to system sounds rather than telephone audio. Positioned along the upper bezel of the screen was an infrared transceiver. Although Danger initially suggested this infrared port would be utilized for data transfer (e.g., IrDA), this functionality never materialized; subsequently, future Sidekick models omitted this port entirely. The headset jack served dual purposes—it also supported an optional accessory camera.

In certain regions within the United States, SunCom and Edge Wireless retailed the device. In Canada, Fido held exclusive distribution rights and launched it in August 2003. In Germany, starting in 2003, E-Plus offered Hiptop service accompanied by a flat-rate plan. Additionally, in Singapore, Starhub began selling the Hiptop in 2004.

hiptop²/T-Mobile Sidekick II (Sharp)

File:SidekickII.jpg

T-Mobile Sidekick II

Unveiled on August 9, 2004, and subsequently launched by T-Mobile US on September 22, 2004, the Hiptop 2 (branded as hiptop²) marked the first model produced by Sharp. Unlike its predecessor, this version relocated the directional pad (D-Pad) from the interior to the left side of the device. Additionally, the external edges housed the shoulder dials along with volume and power controls. The Hiptop2 incorporated a built-in VGA camera and a rear speakerphone. Enhancements also included page-up and page-down buttons positioned above and below the scroll wheel.

In Canada, the Danger Hiptop2 became available on March 8, 2005. The device was introduced in Germany shortly after, on March 10, 2005. Later in the year, it arrived in Austria during October and in Great Britain by November 2005. On October 9, 2006, Telstra released the Australian version of the Hiptop2. While largely identical to the U.S. Sidekick II model, this variant was tailored for Australian users, featuring MSN Messenger as the default messaging application and offering Yahoo! Messenger as a downloadable option from the catalog; in contrast, the U.S. edition included Yahoo! and AOL Instant Messenger.

Limited edition

Two special edition versions of the T-Mobile USA Sidekick II were produced: the Juicy Couture Edition in pink and the Mister Cartoon Edition in black. Both variants featured identical hardware and operating systems but differed solely in their exterior color schemes.

hiptop³/T-Mobile Sidekick 3 (Sharp)

File:Sidekick3.gif

T-Mobile Sidekick 3

Unveiled in June 2006 and launched in the United States on July 10, 2006, with a subsequent rollout in Europe, the Hiptop 3 (branded as hiptop³) was produced by Sharp and featured a physical size approximately 20% smaller than its predecessor. The device underwent an industrial design overhaul, adopting a dark gray casing complemented by silver accents and glossy black keys. The traditional scroll wheel was substituted with a six-directional trackball illuminated by multicolor LEDs, which also served as the indicator light. Additionally, the keyboard transitioned from the earlier rubber design prone to peeling to a more durable rigid plastic construction.

The software retained all prior functionalities, including the line-by-line scrolling capability, with the core system largely unchanged but enhanced by new applications. Notably, MP3 playback was introduced, supporting MP3, WAV, and AAC audio formats stored internally. The device also incorporated a Bluetooth module and upgraded its cellular modem to enable faster EDGE data connectivity.

Additional enhancements included a removable 3.7-volt 1500 mAh battery, a miniSD card slot supporting up to 2 GB of external flash memory, and an improved 1.3-megapixel camera replacing the earlier VGA (640 x 480) sensor. The MiniUSB port's functionality was modified; it no longer provided access to the device’s internal communication system but instead allowed USB v1.1 access exclusively to the miniSD card.

File:Side by Sidekick.jpg

Side by side Hiptop2 (left) and Hiptop3 (right)

Limited edition

T-Mobile USA released three limited edition versions of the Sidekick 3, which varied solely in their aesthetic color schemes:

• Diane von Fürstenberg — Black with pink lip motifs; launched October 30, 2006
• Lifted Research Group — Green featuring tree logos
• Dwyane Wade — White and gold with a basketball texture; debuted February 1, 2007, aligned with the NBA All-Star Game on February 17, 2007

T-Mobile Sidekick iD (Sharp)

Introduced on April 13, 2007, the Sidekick iD represents a more compact variant of the Sidekick 3. Targeted primarily at a younger demographic with limited budgets, it was priced at $99 under a two-year agreement, which was half the cost of the Sidekick 3. To achieve this lower price point, Sharp omitted several features found in the Sidekick 3, such as the 1.3-megapixel camera, Bluetooth functionality, and the media player. Nevertheless, it preserved key design elements like the patented swivel display, concealed keyboard, and trackball. A notable addition was the introduction of removable colored "bumpers," enabling users to customize the device’s look with various color options.

T-Mobile Sidekick LX (Sharp)

File:T-Mobile Sidekick LX (front, open).jpg

The T-Mobile Sidekick LX

Announced on September 26, 2007, the T-Mobile Sidekick LX (model PV-250) became available on October 17, 2007. It was offered in two shades: Midnight Blue and Espresso Brown. The LX featured enhancements including a larger screen with improved resolution, blue LED accent lighting positioned at each of the four corners that synced with user preferences, downloadable music tracks and wallpapers, reduced weight, support for Multimedia Messaging Service (MMS), a Micro SD card slot preloaded with a 128 MB card, and an upgraded operating system.

On July 16, 2008, T-Mobile introduced a limited edition Tony Hawk-branded Sidekick LX model that incorporated video recording capabilities. Although production units were developed for testing purposes in Australia, the LX was never launched there due to incompatibility with Telstra’s 850 MHz 3G network. Nonetheless, Telstra proceeded to market the Slide model following the Hiptop3.

hiptop slide / Sidekick Slide (Motorola)

File:Telstrahiptopslidej33ry.jpg

Hiptop Slide as sold in Australia

Produced by Motorola (model Q700), the Sidekick Slide debuted on November 7, 2007 through T-Mobile USA. Unlike the Sidekick LX, this device saw international releases: it launched as the Hiptop Slide (stylized hiptop slide) via Telstra in Australia on November 5, 2007, and subsequently became available in the United Kingdom and Germany through T-Mobile. Distinct from other Hiptop/Sidekick models, this version employs a slider mechanism rather than a swivel screen to reveal its keyboard. On May 16, 2008, an updated variant called the Sidekick Slide Scarlet was released featuring a red exterior.

Operating on Danger OS version 4.0, this model supports MMS picture messaging and is compatible with T-Mobile’s MyFaves plans. Compared to the LX, although priced more affordably, it offers superior hardware specifications: it includes 128 MB of RAM and a 225 MHz TI OMAP 850 processor—an improvement over the Sidekick 3 and LX's 64 MB RAM and 200 MHz OMAP 331 CPU. Additionally, it features a secondary speaker located on the rear side of the device instead of relying solely on the D-pad speaker for both calls and audio playback.

The official discontinuation of the Sidekick Slide occurred on August 8, 2008.

Product Malfunction and Sales Halt

On November 16, 2007, T-Mobile USA halted the sale of the Sidekick Slide after Motorola acknowledged that certain units would unexpectedly power down when the front sliding door was either opened or closed. Motorola later clarified on November 21, 2007, that the issue stemmed from inadequate battery contacts; extending the screen to access the keyboard occasionally disrupted these contacts, causing the device to shut off briefly. Sales of the Sidekick Slide resumed on December 6, 2007.

T-Mobile Sidekick 2008 (Sharp)

Revealed on July 30, 2008, the model officially named simply T-Mobile Sidekick—commonly called "Sidekick 2008" for differentiation—marked the first release following Microsoft's acquisition of Danger. This iteration featured enhancements such as a 2-megapixel camera with higher resolution and video capabilities integrated with AIM. The design reverted to a swivel QWERTY keyboard and introduced interchangeable faceplates and back covers.

T-Mobile Sidekick LX 2009 (Sharp)

File:Lx09.png

T-Mobile Sidekick LX (2009 edition)

The Sidekick LX 2009 (model PV-300), also known during development as "Sidekick Blade," was announced on April 17, 2009, and launched on May 13, 2009. It was available in "Orchid" and "Carbon" color options. This version supported 3G and HSDPA connectivity and featured hardware upgrades including a 3.2-inch F-WVGA display with an 854×480 pixel resolution, alongside a 3.2-megapixel camera equipped with autofocus and flash.

Most updates focused on software improvements and enhanced social networking integration. Native support for platforms such as Facebook, Twitter, and MySpace allowed notifications to appear in the status bar similarly to instant messaging and email alerts. The device also enabled YouTube streaming through Flash Lite.

The Sidekick LX 2009 provided synchronization capabilities with Microsoft Outlook and Microsoft Exchange via downloadable applications from its catalog. A significant addition was the inclusion of Bing (formerly Live Search), integrated with newly implemented GPS functionality. This replaced earlier mapping reliant on less precise cell tower triangulation and offered turn-by-turn navigation.

Both the Sidekick LX 2009 and the Sidekick 2008 models were officially discontinued as of July 2, 2010.

Software

The Hiptop operating system, known as DangerOS, stands out as one of the rare Java-based operating systems, with even its device drivers crafted in Java. Elements of DangerOS's design later influenced Andy Rubin in the development of the Android platform. The Sidekick LX model from 2009 operates on DangerOS 5.0, which is built upon NetBSD.

Every Sidekick device included an instant messaging (IM) client supporting services such as AIM, Yahoo Messenger, and MSN Messenger. It also featured an Email client complete with a T-Mail account, a preloaded game (either Rockets and Rocks or Bob's Journey), and an organizer comprising a planner, calendar, and calculator. Additional applications included an SMS and phone interface, as well as a Download Fun catalog—referred to simply as Catalog on Hiptop devices. Later models incorporated various social networking applications accessible through a section called Communities. Devices released in European markets were equipped with a WAP browser named Wapaka, developed by the French firm Digital Airways.

User data such as settings, planner entries, notes, calendar events, photos, and contacts were securely backed up to a cloud service. This information could be accessed and modified via a web-based interface. Restoring personal data after a factory reset or when switching to a new device was possible by logging in with the user’s credentials.

By January 2009, Danger OS accounted for approximately 3% of smartphone traffic in the United States, trailing behind iPhone OS, BlackBerry OS, Windows Mobile, and Palm OS.

App development

For Hiptop application creation, Danger provided proprietary APIs derived from a subset of J2SE with unique extensions. With the release of OS 2.3, Danger added support for Java ME, a Java platform tailored for mobile devices. To facilitate third-party app development, Danger offered a comprehensive software development kit (SDK) that included a Hiptop simulator, installation tools, and detailed API documentation. This SDK was freely available on Danger’s developer website.

Developers could install custom applications directly onto Hiptop devices without going through the official Catalog by using tools included in the Danger Hiptop SDK. However, this required obtaining a special software certificate called a Danger Developer Key. Possession of this key authorized the device to function as a Development Device, permitting installation of user-created apps but voiding any software warranty from Danger or wireless carriers—though hardware warranties remained valid.

Applications for DangerOS were packaged as .jar files but uploaded to devices within special container files known as "bundles," which carry the '.bndl' extension. Each bundle corresponds to a particular OS version and build number; for instance, a bundle designed for v3.4/155053 (T-Mobile Sidekick 3) would not install on a v3.3/149695 device (T-Mobile Sidekick iD). Installing bundles on devices running Production OS versions requires a developer key, whereas internal OS builds do not impose this restriction.

Sales and marketing

By the end of 2005, approximately 250,000 individuals subscribed to the Sidekick through T-Mobile's US network. By 2009, sales figures had reached an estimated one million units. Despite cultivating a dedicated fan base, overall sales performance remained relatively modest.

The Sidekick gained considerable traction among prominent American celebrities, significantly enhancing its visibility and appeal to the general public. In 2004, professional skateboarder Tony Hawk expressed his reliance on the device, stating, "I can’t live without my Sidekick," and emphasizing that he carried it everywhere. Media attention intensified in February 2005 when a Sidekick belonging to Paris Hilton was compromised by hackers.

A Midnight Blue Sidekick LX model was prominently featured in the 2008 video game Midnight Club: Los Angeles.

In Europe

Outside the United States, the Sidekick was available through T-Mobile Germany, T-Mobile UK, and T-Mobile Austria as of 2006. Additionally, German carrier E-Plus and Dutch provider KPN also offered the device. However, no French mobile operators included the Hiptop/Sidekick in their product lineup. Unlike its relative success in the US market, the device struggled to gain widespread popularity across Europe. This limited adoption was partly attributed to perceptions that its technology and features were outdated compared to competitors.

2009 data service interruption

Main article: 2009 Sidekick data loss

On October 2, 2009, Microsoft, which had acquired Danger, Inc., experienced a temporary disruption in accessing user information for T-Mobile US Sidekick customers. This incident resulted in the loss of subscriber data including contacts, notes, calendars, and photos. While some of the affected data was recovered within two weeks following the outage, the majority was restored between October 8 and late November. Initial claims that T-Mobile and Microsoft had completely lost all customer information due to a Microsoft server malfunction were later disproven.

User data for Sidekick devices was maintained at Danger's facilities, now under Microsoft's ownership. Unconfirmed reports indicated that Hitachi, the provider of Danger’s storage area network (SAN) and a Microsoft vendor, might have contributed to the temporary data loss. Legal actions filed against Microsoft alleged insufficient backup procedures and an inadequate disaster recovery plan. The lawsuit against Microsoft and associated parties reached a settlement in 2011.

Following this outage, T-Mobile halted sales of all Sidekick devices and their corresponding Data Plans until the issue was fully addressed. New sales and activations recommenced on November 16, 2009.

Discontinuation and related devices

On July 2, 2010, T-Mobile declared that the Sidekick LX 09 and Sidekick 2008 models would no longer be offered through their services. Subsequently, Danger informed its developer community via the Danger Developer Zone forums that it would cease accepting new application submissions for its app store, known as the Catalog, effective September 21, 2010. Development efforts for applications on the Sidekick platform were also terminated on this date. This process culminated with the shutdown of the Danger Developer Zone forums and associated archives on September 30, 2010.

Mobilicity Mobiflip and Sharp Jump

Although the T-Mobile Sidekick LX 2009 ceased sales on July 2, 2010, a redesigned variant was introduced in December 2010 in Canada by the carrier Mobilicity under the name "Mobiflip" (model PV300G). In the United States, regional provider Cincinnati Bell launched the "Sharp Jump" (model PV300GC) in March 2011. Both models operate on a customized version of Danger OS, with all explicit references to Danger removed. This altered operating system functions independently from any backend services: the original Danger web browser, instant messaging, and email applications have been replaced by Opera Mini, a universal (XMPP-compatible) instant messaging client, and no email client is pre-installed. Additionally, there is no access to the Catalog service.

Danger cloud service shutdown

Microsoft announced via Engadget on February 28, 2011, that Danger’s cloud service would be terminated on May 31, 2011. Following this date, Sidekick devices lost access to all data services, although voice functionality remained operational. In Canada, this service had already been discontinued earlier on April 30, 2009.

In Australia, Telstra continued to support the Hiptop service for existing users beyond May 31, 2011—the date when T-Mobile USA ended its Sidekick service. However, Telstra declared that the Hiptop service would officially end on October 4, 2011. Affected customers were offered a complimentary Samsung Galaxy 555 as a replacement for their Hiptop devices.

T-Mobile Sidekick 4G (Samsung)

File:Sidekick 4G.jpg

T-Mobile Sidekick 4G

On April 13, 2011, T-Mobile reintroduced the Sidekick brand with a new 4G HSPA+-enabled Android smartphone developed by Samsung, named the Sidekick 4G. This device is based on the Galaxy S platform and incorporates several features reminiscent of the original series, such as a physical keyboard, a 3.2-megapixel camera without an LED flash, and a four-button layout. It also presents a fresh Android-based user interface that integrates design elements inspired by the Hiptop operating system. It is important to note that this device is not related to any Danger hardware aside from carrying the T-Mobile-exclusive "Sidekick" brand name.

Usage by the deaf and hard-of-hearing

At its launch in late 2002, the Hiptop/T-Mobile Sidekick stood out as the sole mobile phone to come pre-installed with an instant messaging client, specifically AOL Instant Messenger. This platform for text-based communication, combined with on-device email capabilities and a full QWERTY keyboard, quickly gained traction within the deaf community, offering a versatile telecommunications device suitable for use both at home and on the go. Almost immediately, it began to supplant the prevalent wireless devices favored by deaf users at the time, including Motorola’s Talkabout T900, PageWriter, and Timeport, along with early e-mail pagers from RIM and BlackBerry produced by Research In Motion.

The significance of the Hiptop/T-Mobile Sidekick for deaf users was further enhanced in March 2003 when it became the first mobile phone able to make unassisted calls via TDD and through Relay Operator services directly from its web browser. This capability was developed by Jon B. Sharpe of Lormar Logic Company. In August 2003, Lormar Logic advanced this system by enabling deaf individuals to initiate calls using AOL Instant Messenger.

Two months later, MCI Relay introduced a Relay Operator system accessible through telnet. By July of the following year, both MCI Relay and Hamilton Relay had launched AOL Instant Messenger relay platforms. By 2005, at least four Relay Operator providers—Hamilton, MCI, Sprint, Sorenson, and i711—offered direct Relay Operator connectivity from the Sidekick either via instant messaging clients or through free downloads available in the device’s Catalog. Additionally, two companies (Lormar Logic and i711) provided direct TDD access. This software was offered at no extra cost beyond the standard data plan. Notably, Lormar Logic’s complimentary service also enabled encrypted calls to U.S. government agencies such as the Social Security Administration and Internal Revenue Service. Meanwhile, i711 offered additional premium services for deaf users, including access to AAA roadside assistance and locating Open Captioned films.

The availability of direct TDD and relay operator communication has allowed devices like the Hiptop/T-Mobile Sidekick to frequently replace conventional TDD machines. Its prominence within the community is even reflected in its own sign language gesture in American Sign Language, which uses both hands to emulate the opening motion of its rotating screen.

T-Mobile’s introduction of a "data only" wireless plan—removing charges for voice minutes that were unusable by many deaf users—also contributed significantly to the device’s widespread adoption among this demographic. Furthermore, various local deaf non-profit organizations in the United States assist users by covering all or part of the device’s purchase price or monthly service fees to help keep them connected. Some groups have also established discount programs that reduce costs based on membership size within their communities.

Model comparison

Marketing name	hiptop / Sidekick	hiptop2 / Sidekick II	hiptop3 / Sidekick 3	Sidekick iD	Sidekick LX	hiptop slide / Sidekick Slide	Sidekick (2008)	Sidekick LX (2009)
Model number		Sharp PV-100	Sharp PV-200	Sharp PV-150	Sharp PV-250	Motorola Q700	Sharp PV-210	Sharp PV-300
Cellular bands	GSM triband	GSM triband	GSM triband	GSM dual-band (850/1900)	GSM quad-band	GSM quad-band	GSM quad-band	GSM quad-band / UMTS/HSDPA dual-band
Display	240x160 pixel 4-bit monochrome (65K colors on the color version)	2.6-inch 240x160 pixel TFT screen with 65K colors	2.6-inch 240x160 pixel TFT display supporting 65K colors	3.0-inch 240x160 pixel TFT panel with 65K colors	3.0-inch TFT display at 400x240 (WQVGA) resolution	2.0-inch screen with 320x240 (QVGA) pixels	2.6-inch TFT display featuring 400x240 (WQVGA) pixels	3.2-inch TFT screen with 854x480 (FWVGA) pixels resolution
Memory	16MB RAM (32MB RAM on color variant)	32MB RAM	64MB RAM	64MB RAM	64MB RAM	128MB RAM	128MB RAM	128MB RAM
Camera	None	0.3-megapixel camera with flash included	1.3-megapixel camera equipped with flash	None present	1.3-megapixel camera featuring flash	1.3-megapixel camera without flash	2-megapixel camera capable of video recording	3.2-megapixel camera with autofocus, flash, and video recording capability
Bluetooth	Not supported	Not supported	Bluetooth version 1.2 available	Absent	Bluetooth 2.0 enabled	Bluetooth 2.0 enabled	Bluetooth 2.0 enabled	Bluetooth 2.0 enabled
Dimensions	2.6 in (66 mm) height 4.5 in (110 mm) width 1.1 in (28 mm) depth	2.6 in (66 mm) height 5.1 in (130 mm) width 0.9 in (23 mm) depth	2.3 in (58 mm) height 5.1 in (130 mm) width 0.8 in (20 mm) depth	2.4 in (61 mm) height 5.1 in (130 mm) width 0.8 in (20 mm) depth	' 2.4 in (61 mm) height 5.1 in (130 mm) width 0.6 in (15 mm) depth	' 2.6 in (66 mm) height 4.6 in (120 mm) width 0.6 in (15 mm) depth	' 2.3 in (58 mm) height 4.7 in (120 mm) width 0.7 in (18 mm) depth	' 2.4 in (61 mm) height 5.1 in (130 mm) width 0.6 in (15 mm) depth

|- !Weight |' |' |' |' |' |' |' |' |}

See also

• EnV
• Helio Ocean
• HTC Dream
• HTC Touch Pro2
• HTC Wizard
• iPhone
• Microsoft KIN
• N-Gage
• Ogo
• Palm Pixi
• Pogo
• Sony Ericsson P800
• Sony Mylo

External links

• T-Mobile Sidekick official site
• Danger, Inc. archived page
• Community forums and resources supported by Danger