The Big Picture

Cell phones are more than just convenient communication tools: They allow you to check e-mail, sync with the calendar and contacts on your PC, dial a number by the sound of your voice, read breaking news on the Internet, take photos, play games, send text messages, view and edit documents, listen to music, and more. But choosing a phone–and the service plan to go with it–requires some legwork.

Your choice of phone may depend on your choice of wireless service provider. If you’re shopping for a carrier, you first need to figure out which carrier offers the best coverage and monthly service plan in your area. Then you’ll have to select a phone from the assortment that your chosen service provider offers. With the exception of a few handsets, most phones work only on one provider’s system because carriers have mutually exclusive networks, and many carriers lock their phones so you can’t take the same phone to another provider.

The third generation of mobile communications technology, commonly called 3G, is becoming more widely available. It’s supposed to boost data-transfer performance to 2 megabits per second from the more common data-transfer rate of 19.2 kilobits per second, and is particularly handy if you use a phone to wirelessly access data such as e-mail, text messages, and the Web.

The availability of 3G service remains a mixed bag. Sprint and Verizon Wireless use the Evolution Data Optimized (EvDO) network, which offers average download speeds of 400 to 700 kbps and potential maximum download speeds of 2 mbps. AT&T and T-Mobile support a 3G network called HSDPA (High Speed Downlink Packet Access), which is available only on select handsets. (AT&T’s HSDPA is also available for use with PC Cards.) HSDPA promises average download data rates of 400 to 700 kbps with bursts to more than 1 mbps. While more phones are offering support for HSDPA, most AT&T and T-Mobile phones still support EDGE (Enhanced Data rates for Global Evolution), which promises data transmission speeds of 384 kbps, and GPRS (General Packet Radio Service), with an average speed of 40 kbps but the capability to go up to 115 kbps.

Key Phone Features

Wireless standard: World travelers are more affected by wireless standards than are users based strictly in the United States. Most of the world uses networks based on the GSM (Global System for Mobile communications) standard. U.S. carriers, however, use a variety of networks in addition to GSM. U.S. carriers work on the CDMA (Code Division Multiple Access), TDMA (Time Division Multiple Access), iDEN (Integrated Digital Enhanced Network), AMPS (Advanced Mobile Phone Service), GPRS (General Packet Radio Service), EDGE (Enhanced Data rates for Global Evolution), and/or EvDO (Evolution Data Optimized) standards. AT&T runs on the AMPS, EDGE, GSM, GPRS, and TDMA networks. Sprint Nextel uses the iDEN network exclusively. Sprint and Verizon Wireless run on CDMA and EvDO; Verizon also uses AMPS. T-Mobile supports GSM and GPRS networks. It is important to note that while AT&T runs on both GSM and TDMA networks, the services and the phones that use them do not interoperate.

Band support: The more radio bands a phone supports, the more frequencies it picks up. Quad-band phones, as their name suggests, operate across four frequency bands. Theoretically, they provide better coverage than triple-, dual-, or single-band phones. These so-called world phones are compatible with four GSM frequencies–850 MHz (prevalent in the United States), 900 MHz (prevalent in Europe), 1800 MHz (prevalent in Asia), and 1900 MHz (also available in the U.S.). As a result, they function around the globe. You can also find tri-mode phones that work on two digital frequency bands in addition to an analog network, a particularly handy feature if you travel to rural areas.

Design: You can choose among flip-open, clamshell-style phones; nonflip, candy bar-style phones; slider-style phones that–obviously–slide open; and swivel phones that twist open. Low-end flip phones may lack a separate caller ID screen, but many new phones sport dual screens–a small, external LCD on the cover plus an internal display. If you buy a nonflip phone, make sure it has a keypad lock that prevents inadvertent dialing–a helpful feature when you put the phone in a pocket or bag.

Whichever type of phone you choose, check its ergonomics. Is it comfortable against your ear, and can you hear callers without constant adjustment? Can you use the phone with one hand? Consider hands-free use: Can you comfortably hold the phone to your ear by scrunching your neck and shoulder? Also, look for the placement of the headset jack–a jack located on top of the phone is often more convenient than one located on the side.

Size and weight: Part of what makes a phone easy to use is its portability. A typical standard cell phone weighs about 4 ounces, and most nonflip models are about the size of an energy bar–approximately 5 inches long, 2 inches wide, and 1 inch thick. An exception is a smart phone with a full QWERTY keyboard, such as a Palm Treo or BlackBerry device. Though these hybrid units continue to get smaller and slimmer, they are larger than a basic cell phone, and you should keep that in mind if you plan to use one for long phone calls.

Battery life: Most new phones allow at least 4 hours of talk time and 2 to 6 days on standby. Some phones can last up to 14 days or more on standby. Keep in mind that several factors affect battery life; high-speed 3G networks tend to be power-hungry, for example, and the phones that support them often have shorter battery life. The signal strength of your cellular service also has an effect, since a phone that constantly searches for signals will run itself down quickly. Depending on the phone, recharging the battery should take about an hour or longer. When you buy a phone, consider optional accessories such as a higher-capacity battery and a portable charging adapter for use in a car.

Screen: If you intend to send and receive text messages, surf the Web, or use the phone’s organizer, make sure the screen is up to snuff. Make sure it’s big enough for you to take full advantage of the phone’s features. If you’re going to surf the Web or edit office documents on your phone, a screen that’s less than 2 inches diagonally will feel very small.

The screen’s contrast and backlight strengths are also important. The phones we’ve seen show marked differences in viewing quality. If your phone allows you to adjust such settings, you can make text and graphics easily viewable–even in bright places. These days, most phones offer color screens, which are easy on the eyes.

When the first-generation iPhone launched in 2007, it touched off a touch-screen frenzy. Since then, more and more phones have come out with touch screens. If you’re looking for such a phone, keep in mind that not all touch screens are created equal. Some–like the iPhone’s screen–support multitouch, which means they can register more than one touch point at a time. This technology allows you to pinch and grab the screen to zoom in and out on a Web page, for example. Other phones support single touch only, and can register only one tap at a time. Some touch screens also offer a type of feedback–either a slight vibration or a sound–when they register your touch, which can prevent you from tapping needlessly. Finally, consider ease of use: How simple is it to scroll through items on a particular touch-screen menu? Can you adjust the sensitivity of it to your liking?

Keypad: If you can’t figure out how to use certain functions on a phone pretty quickly (with or without consulting the manual), try another; remember, though, that if you’re looking at a phone that packs a lot of features, you should spend some time learning how to use them. Regardless, the keypad layout and menu system should be intuitive. The buttons should be responsive and easy to press. Check out the navigation buttons on the keypad. A joystick-style knob on some phones can make navigating menus quick. Most handsets come with up/down and left/right arrow keys. Buttons that protrude slightly are much easier to use than flat or recessed keys.

Many smart phones come with a small QWERTY keyboard. The tiny keys may not suit everyone, but they can save you a great deal of time if you plan to use your phone for sending e-mail messages and editing office documents. Even very small QWERTY keyboards can be much easier to use than a software-based keyboard on a touch-sensitive screen.

Operating system: If you’re looking to do more than make calls and send text messages with your phone, you should consider the platform on which it runs. The mobile operating system you choose will greatly affect the capabilities of your phone. Smart phones that run the Windows Mobile OS, for example, usually come with mobile versions of the Microsoft Office suite, so you can view and edit documents when you’re away from your PC. Windows Mobile is available on a wide range of handsets from all carriers, so you’ll have plenty of choice in hardware. The Palm OS is not as widely available, but it retains a devoted following, largely because of its easy learning curve; you’ll also find a good deal of productivity software available for Palm OS-based phones. The Symbian platform, which is available on most Nokia smart phones, is not as user-friendly, but it supports a range of business and productivity apps.

Newer platforms include the modified version of the Mac OS that runs on Apple’s iPhones. While the iPhone doesn’t ship with any true office applications, it does include easy access to Apple’s App Store, where you can find an incredible range of applications–for work and play–available for download. The newest platform is Google’s Android, which for the time being is available only on the upcoming T-Mobile G1 smart phone. Android phones will include access to their own marketplace for downloading applications, but how vast the selection will be remains to be seen.

Voice communications and organizer: Mobile phones bombard you with call-management features–voice-activated calling, voice recording, phone books, call histories, speed dialing, and so on. Enabling some of the features (such as caller ID, call waiting, and three-way calling) depends on your service plan. Most phones also provide security features that can restrict incoming and outgoing calls, lock the keypad, and protect or mass-delete phone book entries. Many handsets also provide a speakerphone. Some even function as two-way radios, connecting you with others on the same carrier; and in many cases, such communications don’t count as airtime–a great benefit for IT personnel and other roving staff.

If you want to talk on the phone hands-free (a must if you use the phone while driving), look for a model that comes with a headset or an earphone. If you don’t want to mess with cords, consider a phone that supports Bluetooth, which allows you to pair the device with a wireless Bluetooth headset.

Wireless data: Nearly all cell phones are capable of sending and receiving e-mail and instant messages, downloading custom ring tones and simple games, or connecting to the Internet (sometimes merely by way of a minibrowser that’s designed to work best with text-only versions of popular sites like Amazon, Google, and Yahoo). Such features, however, are heavily dependent on your provider and your service plan.

Going online while you’re waiting for the elevator is a cool idea, but most phones connect at slow speeds: only up to 115 kbps on a GPRS network and up to 384 kbps on EDGE; 3G networks, such as EvDO and HSDPA, provide faster connections at up to 2 mbps.

Key Service Provider Features

Coverage: The biggest nationwide carriers are AT&T Mobility (formerly Cingular Wireless), Sprint Nextel, T-Mobile, and Verizon Wireless. Not all networks are created equal, however. Service can be erratic even if a carrier claims to have coverage in an area; the quality of the reception varies, too. One way to find out about a carrier’s network reliability is to try the service and one of its phones. Most nationwide carriers offer a trial period of up to 30 days where you pay for only the minutes you use. You should also poll friends and colleagues about their experiences. Find out how good the phone signal is at your home, office, or anywhere else you’ll need to use it.

Plan type: The national phone plans that the major carriers offer will let you send and receive calls anywhere in the United States (and even in parts of Canada) at no extra charge. You may be able to sign up for a local or regional plan that limits the areas where you can originate a call and still pull from your monthly pool of minutes; this option may be worth considering if you use your phone for local calls exclusively. If you have a world phone and plan to use it in other countries, choose service with international roaming.

Data plan: You should also take into account your data usage (e-mail, photos, IM, and Web access) when selecting your cell phone plan. Some carriers bundle voice and data plans together, while others let you select a voice and data plan separately. You can always pay for messaging and data use a la carte, but you’ll likely be charged a higher rate. So if you think you’ll be sending and receiving data with your phone, you’ll want to select some sort of data plan.

Minutes: When choosing a plan, it’s best to overestimate the number of minutes you’ll be using for every sent and received call. Because one carrier’s definition of off-peak may be different from another’s, ask the carrier to specify the times for its peak, off-peak, and weekend hours. Other service charges include a data plan (see above), three-way calling, and downloads.

Contract: Virtually all carriers offer discounted service fees if you commit to a specified period of time, usually two years, though one year is sometimes available. The longer the contract period, the lower the rate. If you break the agreement, you’ll incur hefty fees.

Other services: Activating service to your phone or switching the service from your old phone to a new one almost always incurs a fee. Look into phone-replacement plans or extended warranties, both of which typically entitle you to a new phone if yours is lost, stolen, or goes kaput. You should also find out who you can contact if something goes wrong with your phone. Find out exactly what you’ll need to do–and how much you’ll need to pay–in order to fix your phone.