Does Samsung even report sales figures for this sort of thing? They used to only report units shipped (to stores) rather than units sold to customers, whereas Apple reports units sold to customers, which of course is a much better indicator of a product's actual success but may not look as deceptively impressive.
Apple still reports sales to third party retailers as sales, just not shipments to their own stores. You'll have a very difficult time figuring out when each device is actually transferred to a customer. If they split it up between devices sold to customers and those sold to retailers, you could come up with a decent estimate.
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Does Samsung even report sales figures for this sort of thing? They used to only report units shipped (to stores) rather than units sold to customers, whereas Apple reports units sold to customers, which of course is a much better indicator of a product's actual success but may not look as deceptively impressive.
Apple still reports sales to third party retailers as sales, just not shipments to their own stores. You'll have a very difficult time figuring out when each device is actually transferred to a customer. If they split it up between devices sold to customers and those sold to retailers, you could come up with a decent estimate.