> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/tech/wacom-ud-emr.md).

# Wacom UD EMR

## Overview

Wacom pioneered the use of EMR technology in drawing tablets.Wacom sells Wacom-branded drawing tablets that use this technology. There is a special branded version of this technology (called **Wacom UD EMR**) that uses in a small number of its tablets and that Wacom licenses to other manufacturers.

## Generations

Based on this reddit post (r\TabletPCReview - ["Wacom UD EMR Stylus Compendium" ](https://www.reddit.com/r/TabletPCReview/comments/1dia8z8/wacom_ud_emr_stylus_compendium/)2024-06-17) there seem to be two "generations" of Wacom UD EMR

* 1st Generation - aka **"**&#x50;enabled" or "TabletPC"
* 2nd Generation - aka "Wacom feel", "Wacom feel IT" , "feel by Wacom" pen tech

## Relevance to drawing tablets

For drawing tablets, it is the 2nd generation that is of primary interest. There is broad compatibility between tablets and pens that use this generation

## Identifying a UD EMR 2nd gen pen or tablet

Ideally it would be easy to determine if a pen or tablet support UD EMR. Unfortunately ...

* There is no comprehensive master list published by Wacom or other sources
* The pens are not labelled with the tech
* The tablets are not labelled with the tech
* Marketing information often omits any mention of the tech used

So, identification of UD EMR 2nd gen pens has to done on a case-by-case basis.

## UD EMR 2nd gen adoption

* [Tablets that support UD EMR 2nd gen](/drawtab/tech/wacom-ud-emr/ud-emr-tablets.md)
* [Pens that support UD EMR 2nd gen](/drawtab/tech/wacom-ud-emr/ud-emr-pens.md)

## Pen & tablet compatibility for UD EMR 2nd gen

A device that supports a UD EMR pen, very often, will work with any UD EMR pen. However this is not a strict rule. Sometimes there are **some exceptions**.

Here are a partial list of compatibility cases

* Samsung S pen can be used with Wacom One tablets and the Wacom Movink 13
* Wacom CP-913 and CP-923 pens can be used with Samsung Galaxy Tab S series

But there are cases where incompatibilities do exist

* Wacom CP-923 pen cannot be used with Wacom One 2019 tablet. I am not sure why this specific case does not work. I suspect it could be due to a deliberate forcing of incompatibility in the Wacom driver

## Limitations of UD EMR

### Pressure handling

Pens that use UD EMR seem deliberately limited in how well they handle pressure. They generally have higher initial activation force and lower maximum pressure. I believe that these limitations may be partially related to how the pens are manufactured but also I believe that some of the limitations are artificial and enforced by drivers. Overall the pressure handling of an UD EMR is never as good as what you will see in a Wacom professional pen. In fact it's almost always not as good as the pressure behavior you'd find in modern non Wacom EMR pens such as those from Huion and XP-Pen.

### Buttons

Most UD EMR pens have only one button or in some cases no buttons. Some, like the the Wacom CP-923 pen, have two buttons - but this is rare.

## Resources

* [Wacom: our key technologies](https://www.wacom.com/en-us/about-wacom/technologies) - brief overview of UD EMR and AES

### Erasers

The vast majority of UD EMR pens do NOT have an eraser.

The only one I know of that does have an eraser is the Asus ProArt Pen MPA01. TMore here: [ASUS ProArt Pen (MPA01) notes](/drawtab/catalog/pens/asus/aus-mpa01-notes.md)

## Wacom Feel branding examples

Wacom has a "Feel by Wacom" trademark as shown below

<div align="left"><figure><img src="/files/dgCqnhmgcsJCz6or9CGX" alt="" width="157"><figcaption></figcaption></figure></div>

You can see this how it is used in these materials for an ASUS product.

<div align="left"><figure><img src="/files/eoqSraRjH34bdAvEGCL5" alt="" width="188"><figcaption></figcaption></figure></div>

## Videos

* [Teoh on Tech - Wacom (UD) EMR Pens Comparison Review](https://www.youtube.com/watch?v=QV_86xgl0E4) 2025-05-17
