This page lists the GNSS chipsets that are used in the Garmin Descent watches.
The Descent watches are primarily dive computers, but they are also suitable for “on the water” activities.
The various models are listed in reverse-chronological order. The release dates are generally from Garmin announcements.
The Descent G2 was released one month after the Instinct 3. It has similarities with the Instinct E, Instinct 3 AMOLED and Descent Mk3. The applications on the FCC website show that the Descent G2 and Descent Mk3 are distinct from other Garmin models.
| Model | Released | Product | Chipset | CIQ | APPro | References |
|---|---|---|---|---|---|---|
| Descent G2 | 2025-02 | 4588 | TBC * | 5.1 | Y | FCC teardown |
| Descent Mk3i - 51mm | 2023-11 | 4223, 4225 | AG3335M | 5.1 | Y | FCC teardown |
| Descent Mk3 / Mk3i - 43mm | 2023-11 | 4222, 4224 | AG3335M | 5.1 | Y | FCC teardown |
* The Descent G2 could be using the single-band AG3335M or AG3352B, just like the vívoactive 6 which was released 2025-04.
Additional notes about the Airoha chipsets are available on another page.
The Descent G1 was released one month after the Instinct 2. They share many features, including the semi-octagon display / custom two-window design.
| Model | Released | Product | Chipset | CIQ | APPro | References |
|---|---|---|---|---|---|---|
| Descent G1 / G1 Solar | 2022-03 | 4005, 4132 | CXD56xxxx | 3.4 | Y | Possible FCC teardown |
| Descent Mk2 S | 2021-05 | 3542, 3930 | CXD56xxxx | 3.4 | Y | |
| Descent Mk2 / Mk2i | 2020-10 | 3258, 3702 | CXD56xxxx | 3.4 | Y |
Alternative product number(s) are APAC models.
Additional notes about the Sony chipsets are available on another page.
| Model | Released | Product | Chipset | CIQ | APPro | References |
|---|---|---|---|---|---|---|
| Descent Mk1 | 2017-10 | 2859, 2991 | MT3333 | 3.1 | Y |
Alternative product number(s) are APAC models.
Additional notes about the Mediatek chipsets are available on another page.