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Samsung Galaxy Watch4 (SM-R870) Android 16 firmware update R870ZCS2JZG3 – China | SamFrew

Home / Devices / Galaxy Watch4 / SM-R870 / CHC

Galaxy Watch4

SM-R870

Release R870ZCS2JZG3

Latest

China · CHCAndroid 16Built 7/27/2026

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CHC-R870ZCS2JZG3-20260820105610.zip

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File size3.0 GB

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Release information

Firmware identifiers

The software versions and region covered by this firmware update.

PDA: R870ZCS2JZG3
CSC: R870CHC2JZG3
Country: China
Changelist: 33003255
Build date: 7/27/2026
Added to Samfrew: 8/20/2026