Pebble co-founder Eric Migicovsky has just announced the release of its two new e-paper smartwatches with long battery life, open source OS, and full support for existing Pebble apps.

The new offerings come from Core Devices, a small Migicovsky-led team focused on sustainability rather than chasing investment. With the operating system PebbleOS now open source, users can expect compatibility with the rich existing Pebble ecosystem of apps and watch faces.

As confirmed by Migicovsky, the two new smartwatch models are now available for pre-order through the rePebble store .

The first is the Core 2 Duo , a compact device offering a crisp monochrome e-paper display encased in lightweight polycarbonate. It brings several key upgrades including a speaker, battery life extended to 30 days, and

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