Apple Expands iPhone 4S GPS Capabilities with GLONASS Support

From MacRumors

Apple yesterday quietly updated its iPhone 4S tech specs page to note that the device offers not only Assisted GPS but also GLONASS, the Russian version of GPS.

Just two weeks ago, Russia launched the last of 24 satellites required for global location coverage, setting the stage to restore GLONASS to its full operational status that had been lost amid economic turmoil in the country during the late 1990s.

Far from being a Russia-only service, some current global positioning hardware and software is capable of utilizing both GPS and GLONASS satellite information to provide more accurate geolocation information with faster acquisition times.
We have reached out to Apple for comment on whether the iPhone 4S can in fact take advantage of satellites from both systems on a worldwide basis, as it is unclear from the tech specs whether this is the case, but have yet to receive a response.

Photo by Walter Galan, from iFixit (lossless cropped)

Note : according to IHS iSuppli company, chipset Qualcomm MDM6610 is responsible for navigation systems and data transfer in iPhone 4S mobile phone network.

Notably, only the tech specs page on the U.S. site has been updated to mention GLONASS capabilities, with the corresponding page in other iPhone 4S launch countries still listing only Assisted GPS as the device's satellite location service.

Links :

• 9to5Mac : Apple appeases russians and improves gps with GLONASS support