Samsung boss JK Shin calls the company's quad-core marvel a "runaway favourite" on the corporate site. The 4.8-inch Galaxy S3 hit the significant milestone in 157 days -- impressive compared with last year's phenomenally popular Galaxy S2, which Samsung says mustered a more modest 10 million sales in its first 150 days on sale.
The news comes just a few days after Samsung confirmed that the Galaxy Note 2 had shifted 3 million units. That's not as impressive as the S3's 30 million of course, but a sign that even Samsung's slightly quirkier smart phone is finding an audience.
The figure likely refers to the number of Galaxy S3s shipped in total, including those bought by retailers, so it's possible there aren't quite 30 million Galaxy S3 devices nestled in the pockets of ordinary shoppers yet.
For those of you wondering how many humpback whales would be represented by the weight of 30 million S3 devices, Samsung's put together the following infographic. That's whaley impressive, Samsung. Almost unbaleenvable, in fact.
Meanwhile, Samsung is considering ditching its current logo, as part of a corporate identity revamp, our sister site CNET News reports. Here's hoping the Korean company can craft something as Earth-shaking as Microsoft's recently unveiled, life-changing logo.
Will we be celebrating 50 million Galaxy S4 sales this time next year? Or has Google harpooned Samsung's cash cow with the introduction of the £239 Nexus 4 smart phone, which offers S3-beating performance at half the price? Tell me in the comments or on our Facebook wall.