Latest Samsung Galaxy Watch4 44mm (SM-R870) - CHC firmware

Samsung Galaxy Watch4 44mm (SM-R870) firmware for China (Open China) (CHC): 3 builds in the SamMobile archive, newest first. The latest is R870ZCU1DUJB (Android 11, built 18 October 2021). Open a build to download it, or switch region with the country selector.

SM-R875F SM-R875N SM-R875U

Model		Build date	PDA	Version
SM-R870	China (Open China)	2021-10-18	R870ZCU1DUJB	11
SM-R870	China (Open China)	2026-05-26	R870ZCS2JZE1	16
SM-R870	China (Open China)	2026-01-06	R870ZCU1JYL6	16

Model	Country/Carrier
SM-R870	China (Open China)
Build date	PDA
2021-10-18	R870ZCU1DUJB
Version
11

Model	Country/Carrier
SM-R870	China (Open China)
Build date	PDA
2026-05-26	R870ZCS2JZE1
Version
16

Model	Country/Carrier
SM-R870	China (Open China)
Build date	PDA
2026-01-06	R870ZCU1JYL6
Version
16

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Latest Samsung Galaxy Watch4 44mm (SM-R870) - CHC firmware

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