Though Apple didn’t reveal any particular numbers while announcing its quarterly earnings on early Wednesday, the research firm estimates that the company shipped almost four million units of the Apple Watch in the second quarter.

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iPhone continues to growThe iPhone continues to be Apple’s most important product.

He said Apple decided from the outset to remain mum about smartwatch shipments to avoid providing insights to competitors but that the company feels “really great” about sales and how it is position for the long-term.

While most analysts were favourable about the results, there are a few issues, signalling some trouble on the horizon. USA Today, do you know that these are different products? While excluding details, Cook said only that “millions and millions” of consumers are already experiencing the Apple Music subscription service through the three-month trial period. He said watch sales in June were greater than in May or April, when the watch first became available.

Carl Howe, formerly of the analyst business Yankee Group, remarked on Twitter that Apple is now heading for $200bn revenues in its current fiscal year, and commented: “Wall Street seems to have no clue that 21% year-over-year growth for a $200bn company is unprecedented”. In the second quarter of this year, the Strategy Analytics figures show, 5.3 million smartwatches were shipped included 4 million Apple Watches.

Revenue in the category containing the Apple Watch rose by about $950 million during the past quarter compared with the first three months of the year. He said the watch sales were offset by declining revenue from iPods and accessories, which are also lumped into that segment. Apple also sold 10.9m iPads, 4.7m Macs, and ended the quarter with $202.8bn cash on hand.

That beat the estimates of Wall Street analysts surveyed by FactSet, who were expecting Apple to report earnings of $1.81 per share on sales of $49.25 billion.

On the iPhone Outside the USA: Sales nearly doubled in Germany, South Korea, Malaysia and Vietnam. The iPhone, released to the USA market alone in Q3 of 2007, only sold 270,000 units during that quarter, according to Statistica.

Analysts blamed the fall on disappointment about the company’s revenue forecasts for the fourth quarter, which were slightly lower than expected, as well as the firm’s profits being too heavily dependent on the iPhone. That has led some analysts to conclude that the Watch has done around $1 billion in sales. In the coming months, it will face more hard comparisons against the surge in sales that followed the iPhone 6 launch last September. Some analysts have since lowered their estimates.

Meanwhile, many Apple-watchers were keen to hear more about the company’s newest gadget. In the run up to the release of Tuesday’s earnings there was a lot of talk about the slow down in iPhone sales that Apple is likely to see once the strong iPhone 6 cycle is over.

However, since Apple (NASDAQ:AAPL) could not manage to provide the sales numbers of the watch in its conference call, many have started to doubt the product.