SAR Information

On June 1, 2002, a law was enacted that establishes a new system*1 for radio wave emissions by wireless mobile phones. It sets a local exposure limit to radio frequency energy for certain parts of the human body (mainly the head). It employs a unit of measurement known as the Specific Absorption Rate (SAR)*2. The maximum value for this limit is set at 2 W/kg. With the enactment of this law, a variety of new standard values and a new measurement method*3 have been defined. Through our website, The DOCOMO is making available to anyone interested the SAR values measured for all our handsets and the SAR values measured abroad for all our international roaming handsets. This information is being provided in order to...

  • Help the public better understand the intent of the law.
  • Assure the public of the safety of our mobile phones.

*1 Determined by regulations for enforcing the Radio Law.

*2 Specific Absorption Rate (SAR):
The electrical power absorbed by the unit mass of the human body as a result of exposure to an electromagnetic field. Whole-body SAR averages SAR over whole body, while partial-body SAR averages SAR of any 1g or 10g tissues of the human body.

*3 Clarification of standard values and measurement methods:
A variety of measurement methods were proposed in the past. The local SAR measurement method for the head was finally standardized. This method was established based on recommendations from standardization organizations around the world including Japan.

About SAR of Individual Products

The SAR information documents that are made available in English on this page relate exclusively to NTT DOCOMO’s handsets for International Roaming. These handsets fully comply with the government requirements* regarding exposure to radio waves. * As set by the Japanese Ministry of Internal Affairs and Communications, the U.S. Federal Communications Commission, and the Council of the European Union.

docomo Smartphone

Models Released in 2018

Models Released in 2017

Models Released in 2016 (May 2016 or Later)

2015-2016 Winter-Spring Models

2015 Summer Models

2014-2015 Winter-Spring Models

2014 Summer Models

2013-2014 Winter-Spring Models

2013 Summer Models

docomo with series

docomo NEXT series

Device models released in/before Mar. 2011

docomo Tablet

Sony TabletTM

docomo Feature Phone

Models Released in 2018

Models Released in 2016 (May 2016 or Later)

2015-2016 Winter-Spring Models

2015 Summer Models

2014-2015 Winter-Spring Models

2014 Summer Models

2013-2014 Winter-Spring Models

docomo STYLE series

docomo PRIME series

docomo SMART series

docomo PRO series

Conceptual Models

906i Series

905i Series

904i Series

903i Series

902i Series

900i Series

706i Series

705i Series

704i Series

703i Series

702i Series

SIMPURE Series

docomo Raku-Raku PHONE

docomo Kids&Juniors

One Number Phone

Data Communications and Peripheral Products

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