IPhone 3gp

Cómo funciona.
iPhone 3G usa un protocolo tecnológico llamado HSDPA (High-Speed Downlink Packet Access o acceso para descarga de paquetes a alta velocidad) para mover datos rápidamente en redes UMTS (del inglés Universal Mobile Telecommunications System o sistema universal de telecomunicaciones móviles). Los documentos adjuntos de correo y las páginas web se cargan hasta el doble de rápido en redes 3G que en las EDGE 2G.1 Además, puesto que iPhone 3G alterna sin trabas entre las redes EDGE, las rápidas 3G y las rapidísimas Wi-Fi, siempre tendrás la mayor velocidad posible.

Habla y navega... al mismo tiempo.

iPhone ya ofrece multitarea móvil. La tecnología 3G te permite hacer varias cosas a la vez y sin necesidad de conectarte a una Wi-Fi. Como las redes 3G permiten transmitir datos y voz simultáneamente, puedes hablar por teléfono mientras surcas la web, te bajas el correo o usas un mapa... y todo sin salir de tu red móvil 3G.

Ve adonde quieras.
iPhone 3G cumple las normas mundiales de comunicación móvil, así que puedes llamar y navegar por internet desde prácticamente cualquier rincón del planeta. Si te encuentras en una zona sin cobertura 3G, iPhone te conecta mediante GSM para hablar y a través de EDGE para la transmisión de datos.

Más redes, menos espacio.
iPhone ofrece conexiones UMTS, HSDPA, GSM, Wi-Fi, EDGE, GPS y Bluetooth 2.0 + EDR en un dispositivo compacto y que sólo necesita dos antenas. La inteligente concepción de las antenas de iPhone las sitúa en algunos de los sitios más inesperados: el anillo de metal que rodea la cámara, la toma de sonido, el borde metálico que enmarca la pantalla y los circuitos del propio iPhone. Tan inteligente como la gestión energética de iPhone, cuya tecnología te ofrece hasta cinco horas de conversación en redes 3G.2 De lo mejor del sector.

Bluetooth

Bluetooth Headsets: Give Your Ears the Best

Yesterday we looked at a laundry list of stuff you should be thinking about before buying a Bluetooth headset. Price and comfort, boom microphones, noise cancellation algorithms, easy pairing with your devices, and Bluetooth 2.1 compatibility should all figure heavily on the score sheet. Now that you know the score, it's time to delve into what's out there that's new, hot, and just plain useful.

BlueAnt V12 LCD Bluetooth Headset

The big "aha" on this headset is its built-in display that can hold 10 contact names and has 12-number caller ID and voice dial. Of course the down side of having an LCD on your Bluetooth headset is that you really can't read anything on it while it's parked in your ear. (If you must, the headset includes a lanyard so you can wear it around your neck and view caller ID.) Perhaps the best part of the LCD is that there's a battery usage indicator.

Sound ID SM100

The most expensive, and clearly one of the most advanced, earbuds I've seen, but it may be worth it for those with hearing loss. It's got a sleek design and weighs next to nothing. The device shines with its unique noise cancellation capabilities. The three personalized sound levels—normal, moderate, and strong—clean up and enhance the sound without you ever needing to touch the volume control. The earpiece comes with tips for various sized ears and multiple earloops that make it easy to create a personalized fit. And, when you're not talking on the phone, the SM100 uses an environmental microphone to take in the sounds around you so your normal hearing is not affected by wearing the earpiece. Battery life seems a bit short and the price is way high. Recommended for those who need a hearing boost.

Aliph Jawbone

This lovely headset from Aliph is one of the prettiest earpieces on the market, but it also gets some of the highest marks when it comes to noise reduction (it adjusts the call volume based on ambient noise in the environment and also filters out noise) and can be worn by glasses wearers. The Jawbone name comes from the fact that it picks up your voice through movement of your jaw, not just through a microphone, which helps you sound crisp and clear. The design looks metallic (aka cold) but is really medical-grade, very lightweight plastic. A soft rubber button sits against your jawbone, sensing vibrations as you speak. About $129.

Jabra JX10

Jabra from GN is one of the top selling Bluetooth headsets. Known for its unique, almost Trekkian design that wraps around your ear with an ear hook, Jabra brought style into the ugly world of earpieces. The one I like best is the JX10. You charge it in a cradle—much more civilized than plugging it into the power supply. It weighs less than three ounces and costs $179.

Motorola H680 Bluetooth Headset

Motorola's H680 headset was just introduced at a recent trade show. It wins for longest battery life: Motorola claims eight hours of talk or eight days of standby. The H680 weighs in at less than an ounce!

Pulsar 260 Stereo Bluetooth Headset

Enough of these monaural earpieces! Plantronics Pulsar has two corded earpieces much like a regular set of earbuds. It's designed for the growing number of folks who want to switch between listening to music and taking their calls. The Bluetooth controls your phone/music player and you wear a pendant around your neck to switch between calls and music and control volume and song selection. It sells for about $55.