gps-details

Sony GNSS Chipsets

Overview

The latest Sony GNSS chipsets are listed on their website.

The CXD5603GF was definitely used in Garmin watches back in 2019, but may have been superseded in newer watches.

Watches

Garmin

Garmin first used the Sony GNSS chipset in 2019 and multiple teardowns show the D5603 (CXD5603GF):

• Forerunner 245 was released in Apr 2019 and uses the D5603, confirmed by iFixIt teardown.
• fēnix 6X Pro was released in Aug 2019 and uses the D5603, confirmed by F Tipi tear down.

The Sony GNSS chipset was primarily used 2019-2021, but also in Jan 2022 for the Instinct 2 and Feb 2022 for the Venu 2 Plus.

Garmin have hinted at slightly different versions of the Sony chipset over time, hence CXD56xxxx being written in these pages.

Several of the Garmin watches using the Sony chipset are also listed by DC Rainmaker.

COROS

The APEX, VERTIX, APEX Pro and PACE 2 all use the Sony GNSS chipset:

• APEX 42 / 46 mm were released in Oct 2018.
• VERTIX was released in May 2019.
• APEX Pro was released in Sep 2019.
• PACE 2 was released in Aug 2020.

It is quite possible that they use different generations of the CXD56xxxx, and not just the CXD5603GF.