How to Buy a Cell Phone - PC World

The Big Picture

Cell phones are more than just convenient communication tools: They allow you to sync with the calendar on your PC, dial a number by the sound of your voice, look up breaking news on the Internet, take photos, play games, send text messages, check e-mail, 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 the best monthly service plan in your area. Then, you'll have to select a phone from the assortment 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.

There's been a lot of talk about the third generation of mobile communications technology called 3G, which is supposed to boost data-transfer performance to 2 megabits per second from the more common data-transfer rate of 19.2 kilobits per second. 3G will be particularly handy if you use a phone to wirelessly access data such as e-mail, text messages, and the Web.

A few nationwide carriers currently provide 3G. For instance, 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. Meanwhile, as of this writing, Cingular's 3G network, called High Speed Downlink Packet Access (HSDPA), is available on only one handset. (Cingular'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. Currently, most Cingular phones support Enhanced Data rates for Global Evolution (EDGE), which promises data transmission speeds of 384 kbps, and General Packet Radio Service (GPRS), with average speeds of 40 kbps and capable of up to 115 kbps. Other carriers are expected to launch their 3G networks soon.

Key Phone Features

Wireless standard: World travelers are more affected by wireless standards than are users based strictly in the United States. This is because most of the world uses networks based on GSM, which is the 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. Cingular runs on the AMPS, EDGE, GSM, GPRS, and TDMA networks. 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 Cingular runs on both GSM and TDMA networks, but the services and the phones that use them do not interoperate.

Wireless mode: Dual-mode phones, which send and receive both digital and analog signals, tend to be more reliable than single-mode models. In rural areas where digital service is often spotty or nonexistent, a dual-mode phone can fall back on an analog signal to allow service, though roaming fees may apply. Bear in mind that using an analog mode consumes more battery power than using a digital mode. If you use your phone mainly in big cities,where digital service is widespread, you can stick with a single-mode model, which is often cheaper than a dual-mode phone.
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, candybar-style phones; slider-style phones that--obviously--slide open; and swivel phones that twist open. Flip phones can be more difficult to use with one hand because the cover may be heavier than the base, and a few low-end models lack a separate caller ID screen on the cover. Fortunately, 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? How about hands-free use: Can you comfortably hold the phone to your ear by scrunching your neck and shoulder? Also, look for 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 nonflip phone weighs about 4 ounces and is about the size of an energy bar--5 inches long, 2 inches wide, and 1 inch thick. Anything above that is considered large. An exception is a PDA phone, like a Palm Treo or BlackBerry device. These phones more closely resembles a PDA on steroids than a cell phone.
Battery life: Most new phones allow at least three hours of talk time and two to six days on standby. Some phones can last up to 14 days on standby. Keep in mind that usage affects battery life, as does the signal strength of your cellular service. 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. Six lines of text are sufficient for most folks; anything less will make your eyes--and your thumb--sore from scrolling. Some handsets let you adjust the font size to fit more text on the screen, but the more digits you pack in, the tinier they get. Consider a PDA phone if you plan to go online or send lots of messages; many models come with a large LCD.
An LCD'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.
Keypad: If you can't figure out how to use certain functions on a phone within a few minutes (with or without consulting the manual), try another. 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 PDA phones and a few standard cell phones come with a small QWERTY keyboard. The tiny keys may not suit everyone, but for those who need them, they're easier to use than a software-based keyboard on a touch-sensitive screen.
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. Some 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; it allows you to pair it with a wireless Bluetooth headset.
Wireless data: Nearly all new cell phones are capable of doing tasks such as sending and receiving e-mail and IM, downloading custom ring tones and simple games, or connecting to the Internet (usually through 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, provide faster connections at up to 2 mbps.
Key Service Provider Features

Coverage: The biggest nationwide carriers are Cingular, 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 out the service and one of its phones. Nearly all 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: If you do a lot of cross-country traveling, signing up for a national phone plan is best because it will let you send and receive calls anywhere in the United States (and even in parts of Canada) at no extra charge. A local or regional plan limits the areas where you can originate a call and still pull from your monthly pool of minutes. If you have a world phone and plan to use it in other countries, choose service with international roaming.
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 (for e-mail, photos, IM, and Web access), 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: There's almost always a fee for activating service to your phone or switching the service from your old phone to a new one. 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.