PENOX WristBuds – A Bluetooth 6.0 smartwatch with integrated TWS earbuds (Crowdfunding)
cnx-software.com
May 15, 2026
PENOX WristBuds is a 2-in-1 rugged Bluetooth 6.0 smartwatch with integrated TWS earbuds, eliminating the need for a separate charging case. Designed for outdoor enthusiasts and the “zero-clutter mobility” market. The watch is built around a Bluetrum AB5681G RISC-V smartwatch MCU managing both the smartwatch interface and audio synchronization. The device sports a large 2.1-inch IPS display with a 320×390 resolution and is housed in a CNC-machined zinc alloy body. But what’s interesting about this is its mechanical, spring-loaded “Pop & Snap” design that houses the TWS earbuds inside the watch, and eliminates the need for a separate charging case. PENOX WristBuds specifications: MCU – Bluetooth AB5681G CPU – 32-bit RISC-V CPU @ up to 140 MHz Memory – TBC (not mentioned at all in the MCU datasheet) Storage – 128Mbit integrated NOR Flash Display & Graphics – SPI/QSPI display engine with HW acceleration (DMA, rotation, scaling, blending) Audio – [...]
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