AI Demand and NAND Shifts Drive Smartphone Storage Capacity Growth in 2026

Despite rising NAND flash prices, the average storage capacity of smartphones is projected to increase by 4.8% year-over-year in 2026, fueled by the growing demand for on-device artificial intelligence (AI) processing and shifts in NAND flash supply. This counters earlier expectations of potential specification reductions to mitigate the impact of higher memory costs.

The Rise of On-Device AI

The expansion of AI capabilities in flagship smartphones is a primary driver of this trend. High-end brands like Apple and Huawei are integrating AI platforms – Apple Intelligence 2.0 and Huawei’s HarmonyOS AI, respectively – that require substantial system storage for local AI processing. These edge AI models necessitate 40–60 GB of cache space TrendForce.

iPhone 17 and Huawei Mate 80 Lead the Charge

Apple has already responded to these demands by increasing the base storage configuration of the iPhone 17 series from 128 GB to 256 GB, ensuring sufficient capacity for AI applications and user data. Similarly, Huawei is promoting wider adoption of 512 GB variants in its Mate 80 series to support offline multimodal AI interactions TrendForce.

NAND Supply Constraints Contribute to Capacity Increases

Beyond AI demands, process upgrades at NAND flash manufacturers are reducing the supply of low-capacity products, making it more difficult to source low-density memory dies. This has resulted in a passive increase in smartphone storage capacities across the market. Some smartphone brands are discontinuing or reducing shipments of low-capacity models with weaker profit margins, focusing instead on mid-to-high capacity configurations like 128 GB and 256 GB TrendForce.

iPhone Storage Growth to Outpace Android

TrendForce notes that the iPhone 17 series’ increase to a 256 GB base configuration will lead to significantly faster growth in the average storage capacity of iPhones compared to Android devices in 2026. Premium smartphone brands, better positioned to absorb higher memory costs, are increasing storage capacity to support higher device prices and enhance AI experiences TrendForce.

Key Takeaways

• Average smartphone storage capacity is projected to grow by 4.8% in 2026.
• Demand for on-device AI processing is a major driver of increased storage needs.
• NAND flash supply constraints are contributing to higher storage capacities.
• Apple and Huawei are leading the trend with increased storage configurations in their latest smartphone series.
• iPhone storage capacity growth is expected to outpace Android devices.