pros:, A watch phone replaces two devices: a wrist watch and a cellphone, so there’s less luggage to carry arround in your pockets It usually comes with a Bluetooth headset in the package, making it almost usable on a daily basis It’s easier to see if you have any missed calls or SMS messages A watch phone is always in reach, so you won’t miss a call or new message (this can also be regarded as a weak point, in case you don’t want to be reached). The alarm function will also be really loud as it’s closed to the ear, so you won’t fall asleep anymore in the morning when you have to go to work., You get it all, a cell phone, mp3 player, video player, digital and video camera.
cons:, A watch phone’s size is much bigger than a normal wrist watch, making it not a fashion statement and hard to match with your clothes Because it weights almost as much as a phone it’s hard to wear it all day long, and your hand gets tired after a few hours The screen for the screen is very small, thus lacking precision so that many times the menu options are hard to access, even with the stylus Always phone functions are mostly basic (Calls, Messaging, Phonebook), so if you need more than that you won’t be satisfied with a watch phone Having a Bluetooth headset paired to the watch phone means there’s another gadget that needs to be charged regularly. Also it increases the chance (actually doubles it) that one of them runs out of juice at one time and you don’t want to use the speaker as everyone near you can hear what you have to say. Every watch phone uses its special operating system, so not much of support here from software developers, so even if you can install additional applications the offers is very limited.
January 2007 the first generation iPhone was released for sale to At&T users that had two-year contracts with the company.
AT&T, older Edge network, not 3G
4.76 oz (135 g)
Browser: Safari supports landscape mode, multi-touch zoom and pan, and multiple windows.
Screen size: 3.5" diagonal
GPS: A-GPS; photo, video geo-tagging
Released July 11, 2008, the iPhone 3G supports faster 3G data speeds via UMTS with 3.6 Mbps HSDPA, and assisted GPS.
improved performance, a camera with higher resolution and video capability, voice control, and support for 7.2 Mbps HSDPA downloading (but remains limited to 384 Kbps uploading as Apple has not implemented the HSPA protocol)
Pros:, Thin, sleek design., High-quality pre-installed applications, including a "desktop class" web browser, HTML capable e-mail client, and integrated Google Maps, as well as the potential for thousands of third-party applications via the AppStore., Support to read, but not edit, Microsoft Word, Excel, and PowerPoint as well as Adobe PDF files.
Cons:, Tied to expensive multi-year contracts in many countries., Battery life may be insufficient for heavy users., Substantially larger capacity iPod models are available for less money per GB.
Nearly every smartphone on the market contains an application processor based on processor cores from ARM. (ARM says 2.5 billion chips with ARM cores shipped last year, and the typical phone has at least two.) ARM doesn't make chips itself; instead, it creates intellectual property in the form of designed-for-processor cores, graphics, and memory connections.
Moorestown is the Intel Corporation's Atom processor based system-on-a-chip that's designed for smartphones. Moorestown-ready MeeGo operating system, combining the Intel-backed Moblin and Nokia-backed Maemo mobile Linux operating systems, was announced earlier this week.
The Snapdragon platform is designed for real time ubiquitous computing with low power consumption for day-long battery life. The first chipsets in the Snapdragon family were the QSD8650 and the QSD8250, available since the fourth quarter of 2008, both integrating a 1 GHz applications processor, a cellular modem and GPS. 45nm LP process variants, QSD8x50A clocked at up to 1.3GHz with 30% less power consumption, were sampled by the end of 2009.
A system-on-a-chip series developed by NVIDIA for mobile devices such as smartphones, Personal digital assistants and Mobile internet devices. Each Tegra is a "computer on a chip" which integrates the ARM architecture processor CPU, GPU, northbridge, southbridge and memory controller onto a single package. The series emphasizes low power consumption (long battery life) and high performance for playing video and audio.
Linux OS supports more processors than any other operating system on the market, http://communication.howstuffworks.com/smartphone2.htm
Cons, New node
Pros, The TouchFlo3D user interface is nicer than what Microsoft presents. When the TouchFlo3D doesn't work any more the GUI falls back to Microsoft's implementation. A graceful degradation sort of. Or like using a terminal window when KDE doesn't make it., Easy to develop for. As long as you use dotnet and have the right development environment. Unlike developing for iPod or Xbox it is free to develop (these to others are free to develop for as long as you pay the respective companies a fee for deploying)
Verizon, Best 3G coverage in America
5.99 oz (170 g)
Screen size: 3.7" diagonal
GPS: A-GPS supports LBS / navigation with turn-by-turn driving directions