A smartphone is a daily-use device with high wear on the battery, ports, and glass surfaces, and many users replace based on performance, battery health, or software support. This dataset uses a conservative 2.5-year average lifespan based on a business analytics summary citing Statista for U.S.
smartphone lifespan patterns, which aligns with common upgrade cycles. Repairs under the threshold are often worthwhile early in ownership for battery swaps, port cleaning/repair, or screen replacement-especially if the device is otherwise reliable and still receives security updates.
Replacement becomes more attractive if the phone has repeated water-damage symptoms, failing logic-board issues, or multiple expensive modules (screen plus camera) stacking together. Also consider security and support: if updates are ending soon, investing in repairs may have limited long-term value.
The new-price benchmark uses Apple's published starting price for iPhone 15; real out-of-pocket cost may differ with carrier promotions and trade-ins, so keep decisions anchored to the full replacement value.