The Samsung Galaxy S4 has reportedly surpassed 20 million sales following its release just over two months ago. In comparison, it took the handset’s predecessor, the Galaxy S III, 100 days to reach this milestone, and it was Samsung’s fastest-selling smartphone to date.

Android and iOS managed to grab a whopping 92.3% of all smartphone shipments during the first quarter of 2013, with a total of 199.5 million units sold worldwide. There are no prizes for guessing which of the two platforms grabbed the most market share.

As successor to the hugely successful Galaxy S III, the Galaxy S4 always had big boots to fill — but it appears to be doing that with ease. In just four days last month, Samsung shipped a staggering 4 million Galaxy S4 handsets. It’s now on track to ship 10 million by the end of May.

Apple is beginning to close the gap on Samsung over shipments of smart connected devices, which includes computers, smartphones, and tablets. The Cupertino company grabbed 20.3% of the market by the end of 2012, according to IDC, while Samsung just about had the edge with a 21.2% share.

Research firm International Data Corporation (IDC) has revealed that “smart connected device” shipments — which includes computers, smartphones, and tablets — reached a record high during the third quarter of 2012, largely thanks to Apple and Samsung. The pair’s hugely popular devices helped the market grow 27.1% year-on-year as it reached a record 303.6 million shipments valued at over $140 billion.