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Samsung Galaxy Watch4 (SM-R860) Android 16 firmware update R860XXU2JZC2 – USA | SamFrew

Home / Devices / Galaxy Watch4 / SM-R860 / XAA

Galaxy Watch4

SM-R860

Release R860XXU2JZC2

USA · XAAAndroid 16Built 3/9/2026

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XAA-R860XXU2JZC2-20260319131211.zip

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File size3.3 GB

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This file is also the factory firmware for this release.

Release information

Firmware identifiers

The software versions and region covered by this firmware update.

PDA: R860XXU2JZC2
CSC: R860OXM2JZC2
Country: USA
Changelist: 33003255
Build date: 3/9/2026
Added to Samfrew: 3/15/2026