Can the US Build a DJI? A Teardown of Two DJI Drones

Researchers disassembled a 2019 Mavic Mini and a 2023 Mini 4 Pro to reconstruct per-part bills of materials and trace suppliers, costs, and design changes. They find DJI sustained extraordinarily high hardware gross margins - rising from about 72% to 79% between 2019 and 2023, versus roughly 53% for Apple’s iPhone 15 Pro Max - and materially reduced dependence on third parties by bringing custom silicon and key subsystems in-house. The Mini 4 Pro’s BOM shows roughly 26% of cost in custom electronics (up from 1% on the Mavic Mini), including four proprietary chips (vision SoC, ISP, O4 radio SoC, core SoC). Integrating flight control into a main SoC, plus denser boards and heavier camera subsystems, let DJI pack more compute and sensing while keeping mass under 250 g, a regulatory threshold that competitors struggle to meet.

Verticalization and proximity to China’s hardware ecosystem explain much of the advantage. DJI shifted more sourcing to Chinese vendors, sometimes paying more for lighter, higher-energy-density battery packs (Ampace cells costing ~$8.60 vs. earlier Samsung cells) that shaved 20 g and raised energy by ~10%, enabling extra sensors and compute. DJI retained Swiss u-blox GNSS modules for ecosystem and integration reasons. A comparison with Skydio shows U.S. firms can beat DJI on autonomy but can’t match its price, mass, or rapid iteration speed tied to Shenzhen supply chains. Regulatory bans and legal fights are driving some agencies to domestic suppliers, but no clear, cost-competitive U.S. replacement has emerged.