See what upgrading your phone or gadget on a regular cycle really costs over time — and what that same money could become if invested instead.
Your average annual "upgrade budget" is the device cost divided by your upgrade frequency (e.g. a $1,000 phone every year is a $1,000/year budget; every 2 years is $500/year). Multiplying that by your comparison period gives total spending on upgrades.
The invested scenario assumes that same annual amount was contributed to an investment account earning your expected return instead, compounding monthly using the standard future-value-of-an-annuity formula. The gap between the two totals shows the real long-term cost of frequent upgrades versus a longer replacement cycle.
No — it assumes the full cost each cycle. If you typically sell or trade in your old device, subtract that expected resale value from the device cost for a more accurate comparison.
Not necessarily — this is a financial comparison only. If a newer device meaningfully improves your work, health, or daily life, that value isn't captured in dollars alone.
Because it directly sets your annual "budget" — stretching from yearly to every-other-year upgrades cuts the effective annual cost in half, which compounds significantly over a long comparison period.