Analysis: the 256GB iPhone 18 Pro is set to have a bill of materials cost ~38% higher than the iPhone 17 Pro due to memory prices; memory's BOM share hits 34%
TrendForce's latest smartphone industry research reveals that escalating component costs—led by memory—are expected …
Context & Ripple Effects
Earlier iPhone teardowns showed component costs rising gradually, including the roughly 10% component-cost increase in the iPhone 15 lineup. TrendForce now identifies a different cost center: memory is projected to take more than a third of the 256GB iPhone 18 Pro's materials cost.
The pressure is part of a wider handset supply squeeze: related coverage forecasts falling 2026 smartphone shipments as memory costs rise, while Nothing's CEO described memory as the costliest component in some phones. TrendForce attributes the constraint to data centers absorbing high-end memory supply and limited new capacity before 2027.
First-order effects
- TrendForce's projection makes memory the dominant bill-of-materials driver for the 256GB iPhone 18 Pro, lifting its projected materials cost about 38% versus the comparable iPhone 17 Pro.
- iPhone's cost base becomes more exposed to memory pricing than to the processor-led mix seen in the iPhone 14 Pro Max teardown.
Second-order effects
- Chinese OEMs, already identified in related coverage as leading a projected 2026 shipment decline, face the same rising-memory-cost environment while competing with iPhone for constrained supply.
- Data-center demand for more than 70% of high-end memory output leaves handset makers competing for supply that TrendForce expects to expand only modestly before 2027.
Third-order effects
- If this allocation pattern persists, premium-phone pricing and configurations will be shaped increasingly by memory availability, not merely by annual processor and display upgrades.
- The smartphone supply chain is becoming more directly coupled to AI infrastructure spending: capacity decisions aimed at high-end memory can set handset cost floors across vendors.
The trend: AI infrastructure demand is spilling into consumer-device economics by tightening high-end memory supply and making memory a central smartphone cost constraint.