Apple published its fiscal third quarter earnings on Tuesday evening, when it revealed impressive quarterly earnings with record Q3 iPhone sales that still failed to meet Wall Street expectations. One figure the company didn’t provide any clear insight into was Apple Watch sales, though revenue generated by the company’s “other” category provides some insight.

As 9to5Mac notes, Apple said it made $2.6 billion in its “other” category during the quarter, up from $1.7 billion during the fiscal second quarter. The other category includes products such as the iPod, Apple TV, accessories and Beats Electronics, but the difference seems to suggest about $1.4 billion in revenue from the Apple Watch.

Unfortunately, we don’t know what the average selling price (ASP) of the Apple Watch is— models range in price from $349 to $17,000 — but an ASP would give us a better idea of a sales figure. Using $500 as the ASP, however, 9to5Mac suspects Apple sold about 3 million Apple Watch units.

There’s another reason why that 3 million figure seems like a relatively safe bet. According to Bloomberg View, Cook said “the Apple Watch sell-through was higher than the comparable launch periods of the original iPhone or the original iPad.”

That means the figure is more than the 1.19 million iPhone units Apple sold during its first quarter on the market. Bloomberg View also notes Apple sold 3.27 million iPads during its first quarter on the market, though that includes roughly a month of additional availability (iPad hit the market on April 3, while the Apple Watch launched on April 24.) “Apple would have had to sell more than 2.18 million watches to beat the first iPad,” Bloomberg View explained.

So while we don’t know exactly how many Apple Watch units Apple sold, it seems like the general consensus is that it falls somewhere between that 2.18 million and 3 million unit mark, though could be much more (or less) depending on the average selling price of the Apple Watch. Maybe Apple will shed light on the figure at some other point, but that’s where we stand for now.