What’s the difference between Astro & Astro Pro?

The Astro model has a battery capacity of 780Wh, while the Astro Pro model has a larger battery capacity of 1040Wh.

The Astro is a special version that C3STROM introduced during the company's initial crowdfunding campaign on Indiegogo when it was first starting up. For users who require a new battery, they have the option to purchase the 1040Wh battery separately.