After years of disappointing design choices, Samsung stepped up its game with the Galaxy S6 and delivered a device that not only looks great, but has the specifications and software to match its high-end form factor.

It’s no surprise, then, that fans cannot wait to get their hands on the device. In fact, it’s already selling so well that Samsung is confident the Galaxy S6 will be its best-selling smartphone to date.

The Galaxy S6 was already well-received by consumers and critics following its unveiling at Mobile World Congress back in March, and that has been followed by a string of glowing reviews. Now some analysts say Samsung will ship more than 50 million units this year.

Samsung expects its January-March operating profit to be its highest in three quarters, Reuters reports. This follows a decline in sales after poor demand for last year’s Galaxy S5 in a number of key markets.

One of the reasons for the sharp increase, experts say, is Samsung decision to use its own processor in the Galaxy S6 and S6 edge, rather than using Qualcomm’s latest offering — which is what the South Korean company has done in recent years.

But Samsung mobile chief JK Shin hasn’t ruled out using Qualcomm chips in the future.

“We have to use the best engines to make our products competitive, which is why we opted to use our own chips,” Shin said. “But we may very well end up using products from Qualcomm again in the next Galaxy phone.”

Samsung’s most successful smartphone to date is the Galaxy S3, which sold 80 million units in three years. The Galaxy S4 sold around 43 million units from its launch in April 2013 to the end of that year. Now the Galaxy S6 is expected to beat that with 50 million sales this year alone.

The Galaxy S6 edge is also selling so well that Samsung cannot keep up with the demand, Shin revealed. That’s thanks to its curved glass display, which is harder to manufacture than the regular Galaxy S6’s flat panel.

Shin also confirmed that Samsung is planning new wearable devices, including a new Gear smartwatch. However, Shin did not reveal any details or a timeline for its release.

• SourceReuters