Analysts Predict up to 6 Million Apple Watch Sales for September Quarter

Tim Cook won’t reveal Apple Watch sales figures – you may recall his comments at the WSJLive conference on Monday night – but investors are still interested in knowing those numbers. So, who do you call if you need some numbers? Wall Street analysts, of course. And they give it their best shot, as they always do, ahead of the (always) highly anticipated quarterly earnings call.

Fortune’s Philip Elmer-DeWitt has gathered a bouquet of analyst estimates, both from pros and amateurs. By looking at the numbers, we can see there is no consensus among analysts. Some of them predict as high as 5 to 6 million units, while others only 2.5 million.

The highest estimate comes from The Braeburn Group analysts Lee Storch and Robert Paul Leitao: 6 million units. Professional analysts, however, aren’t as bullish as the aforementioned two amateurs: The highest estimate is 5.1 million. Gene Munster of Piper Jaffray, on the other hand (just as did his peer from Bernstein Research) is quite skeptical about Watch sales, foreseeing only 2.5 million units.

The average estimate is nearly 4 million units.

By comparison, analysts say Apple sold roughly 3 million Watch units in Q3 2015 (their claim is based on the numbers revealed in the quarterly report). I guess we’ll see some more estimates after Apple reveals its fourth fiscal quarter earnings report next Tuesday.