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Samsung Galaxy Watch4 (SM-R860) Android 16 Firmware (R860XXS2JZG3) – South Korea | SamFrew

Home / Firmware / SM-R860 / KOO

Galaxy Watch4

SM-R860 Firmware

Latest firmware

PDAR860XXS2JZG3

KOOAndroid 16Released 7/27/2026

Firmware details

Technical package info

Key identifiers and package metadata for this release.

PDA: R860XXS2JZG3
CSC: R860OMK2JZG3
Country: South Korea
Changelist: 33003255
Upload date: 8/18/2026
Package size: 3.2 GB (3460512107 bytes)
File name: KOO-R860XXS2JZG3-20260818125051.zip

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Package size3.2 GB

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