Unlocked Phone vs Carrier Subsidy Calculator

Compare 2-year total costs between carrier subsidies, 25% contract discounts, and unlocked phone + MVNO combinations

Buying a new smartphone? Compare the 24-month total cost of carrier device subsidies (support funds), carrier contract discounts (25% off monthly bills), and buying an unlocked (SIM-free) device paired with an MVNO (prepaid/discount) plan. Find the best financial choice instantly.

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How to use

  1. Enter the official retail price of the smartphone.
  2. Input the carrier plan monthly cost and the device subsidy (support fund) amount offered.
  3. Adjust the dealer extra subsidy percentage (up to 15% legally in Korea).
  4. For the unlocked option, enter the actual price you would pay (e.g. at Amazon/retailers with card discounts) and the MVNO monthly plan price.
  5. Review the 2-year cost comparison chart and read our smart buying recommendation.

FAQ

Can I combine the carrier device subsidy and the 25% contract discount?
No, they cannot be combined. You must choose either the upfront device discount (Carrier Subsidy) or the ongoing monthly service discount (Contract Discount). Use this calculator to compare which option yields a lower 2-year total cost.
What is the dealer extra subsidy?
It is an additional discount that dealers/retailers can legally offer from their own commissions, capped at 15% of the carrier's official device subsidy under Korean telecommunication regulations.

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