While the Apple Watch has captured the world's attention, it won't factor into fiscal second-quarter results. The period ended a couple weeks before preorders started for the watch on April 10 and nearly a month before customers could actually get their hands on the device. Last quarter, the iPhone accounted for almost 70 percent of sales. "From Wall Street's standpoint, they're looking at two things -- the sales of iPhone in the last quarter and some feedback..on what the preorders were for the watch," said Tim Bajarin, president of tech research firm Creative Strategies.

The company didn't respond to a request for comment ahead of the report, Apple's December quarter -- which includes the holidays and the first full period of new iPhone sales -- tends to be the biggest three months of the year for the company, That certainly was true this time around, For that quarter, Apple reported the highest revenue in its 38-year history princess leia rebel iphone case and the highest profit of any company -- ever -- selling a record 74.5 million iPhones, Apple has been benefiting from blockbuster demand for its 4.7-inch iPhone 6 and 5.5-inch 6 Plus devices since their release in September..

But Apple also has been more dependent on the iPhone than usual -- largely because demand has soared for its smartphones but fallen for its tablets. About 69 percent of Apple's $74.6 billion in sales last quarter came from the iPhone. That smartphone typically has accounted for half of Apple's sales in previous quarters. Being reliant on one device poses a big risk for any company, including Apple, and that has led it to expand into new markets with products such as wearables with the Apple Watch and mobile payments with Apple Pay.

In the past, huge iPhone demand in princess leia rebel iphone case the first quarter made second-quarter results pale in comparison, Most analysts expect the same pattern this year, Apple is believed to have sold 56.8 million iPhones in its second quarter, according to an analyst poll by Fortune, That's about 30 percent more than in the year-earlier quarter, Analysts also forecast a 25 percent drop in revenue from the first quarter to $56.06 billion -- lower than Apple's average 19 percent decline in the second quarter for the past three years, according to Bernstein analyst Toni Sacconaghi..

That drop may be steeper this year in part because some European countries got the iPhone sooner than in the past, he noted. Still, iPhone supplies fell short until late in the first quarter, which could help second-quarter results. "On net, we believe that consensus and our revenue forecast point to the potential for upside," Sacconaghi said. Apple is expected to report earnings of $2.16 a share on $56.06 billion in revenue, according to analysts polled by Thomson Reuters. In January, Apple, which tends to low-ball its forecast, projected sales of $52 billion to $55 million, which was largely in line with Wall Street's estimates at the time.