What if you bought Apple stock instead of the iPhone 4S?
An iPhone 4S cost $649 in Oct 2011. The same money in Apple stock is worth $15,085 today (23.2x). The iPhone 4S and the other what if I had invested questions are on one page, each with what the money is worth today.

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16GB, full price: the unsubsidized US price at launch ($199 on a 2-year contract).
Price only, split-adjusted. Hindsight, not advice.
Price history built 27 Sep 2026.
Sources: marco.org