The HP iPAQ Pocket PC H4000 series was a popular model of a personal digital assistant (PDA) because of its rich feature set and ease of use. Even thought these models aren't the current model for the series, you can still find these models for sale. The Windows Mobile 2003 for Pocket PC operating system gives the iPAQ H4000 series a range of applications well-suited to business users, while the multi-media and web browsing capabilities attract those with recreational use in mind.

You can sync your iPAQ H4000 with a computer using Bluetooth technology while browsing the web using a WiFi connection. Obtain a secure digital input/output (SDIO) device such as a global positioning system (GPS) device, camera or fingerprint recognition device to further extend the capabilities of your iPAQ. The HP iPAQ H4000 series is popular for the following features:

1. The full QWERTY keyboard, which uses the same configuration as a computer's keyboard, that's available on most iPAQ H4000 series models;

2. Bluetooth and WiFi connectivity;

3. The large, bright color screen;

4. And multi-media capability including a 3.5mm stereo audio jack.

Action Steps
The best contacts and resources to help you get it done

Buy a used H4000 Series HP iPAQ or upgrade to a newer model

Since Hewlett Packard (HP) no longer manufacturers the iPAQ H4000, you'll have to buy a used one, if you want one. The models can run Linux and other alternative operating systems. HP currently makes other iPAQ models and iPAQ smart phones.

I recommend: Buy used HP iPAQ series H4000 models at Gizmos2Go.com, where they also sell a wide variety of PDA accessories. Find the current iPAQ models at Hewlett-Packard.

Find batteries and accessories for your HP iPAQ H4000

It is easy to find replacement batteries for the iPAQ H4000-Series. Replace the damaged screen on your iPAQ Pocket PC H4000 series, buy a foldable keyboard for a portable way to easily type longer documents, or get a USB cable or a new stylus.

I recommend: Look for accessories such as screen protectors, batteries, foldable keyboards, cases and cradles for the HP iPAQ 4000 series at Hexparts. Buy batteries, styli and other accessories at WholesalePDAs.com.

Download iPAQ H4000 software

Types of popular iPAQ H4000 software include text and book readers, scheduling and calendar programs, browsers and media viewing applications and games. Keep track of your appointments by having your iPAQ remind you of important meetings. Listen to you favorite music, or show photos of your vacation to your co-workers.

I recommend: Browse through many categories of Windows Mobile applications at Touch Innovations. Find many award-winning applications for Windows Mobile devices at Ilium Software, where you can download a trial copy before you decide whether you want to buy it.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Try the following to increase the battery life on your H4000 iPAQ: set the back light to the lowest setting, disable the incoming beam option, and disable Bluetooth and WiFi when not in use.