Any excess resonant electromagnetic energy is reflected back to the tablet. This close-coupled field stimulates oscillation in the pen's coil/capacitor (LC) circuit when brought into range of the B-field. In send mode, the tablet generates a close-coupled electromagnetic field at a frequency of 531 kHz. Under the tablet's surface (or LCD in the case of the Cintiq) is a printed circuit board with a grid of multiple send/receive coils and a magnetic reflector attached behind the grid. Additionally, a thin sheet of glass or acetate can be placed over the drawing surface to avert surface or nib damage in the same way as screen protectors are used on phones, although in the case of glass this may induce a-usually modest-parallax error when tracing. As the nibs were only short lengths of plastic, it was possible for a user wanting a more durable nib to improvise a replacement from a short length of nylon 'wire' (approx 0.065 inches or 1.7mm diameter) like that found in grass trimmer or 'weed-eater' refills, suitably straightened by hand and smoothed (rounded off) at one end with abrasive paper. This could also cause the surface to become smoother where it is used more, resulting in uneven slick and non-slick areas. Several Wacom models, including the Intuos4 and Bamboo, were criticized for the drawing surface's roughness, which caused the small pressure-sensitive 'nib' to wear down, and become slanted or scratchy in the same way as pencil lead, albeit more slowly. At CES Asia 2018 Shanghai, Wacom unveiled its first retractable ballpoint pen for EMR technology in this pen the coil surrounds the cartridge enabling refill manufacturers to provide Wacom compatible refills in the future. In Europe, Wacom offered the Colorelli, a tablet and software package marketed as a creative outlet for children 'JustWrite Office' a basic tablet for capturing written input in office applications the PL Series, similar in function to the Cintiq but with more modest specifications suited for office use and the 'Signature Tablet', a monochrome display/tablet for capturing signatures.

The Graphire digital pen is interchangeable with the original Bamboo model's digital pen but not later Bamboos. The Graphire Wireless is a 6 in × 8 in (15 cm × 20 cm) version of Wacom's discontinued Graphire line (largely replaced by the Bamboo) which communicates with the computer via Bluetooth rather than a USB cable.

Wacom offers additional products which it marketed in various parts of the world.

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