a16z Podcast: What Comes After the Smartphone

Episode Summary

Executive Summary: The conversation argues that smartphones are no longer the frontier of consumer hardware: the device layer has stabilized, and innovation has shifted upward into apps, services, cloud, and connected ecosystems. By contrast, PCs are portrayed as a mature platform being “perfected” at the end of its lifecycle. The speakers say the next wave will likely be built on smartphone components and ecosystems, not a wholly separate device platform.

Main Topics: Mobile is entering a mature, stable phase (Priority: 5/5): The smartphone has become the dominant computing platform, but its core hardware form factor is now predictable and no longer the center of explosive change. PCs are being perfected at the end of their lifecycle (Priority: 5/5): Surface Pro, MacBook, and similar devices are framed as highly refined products that reflect a mature, even declining ecosystem rather than a new growth wave. Innovation has moved up the stack (Priority: 5/5): With device hardware stabilized, the real action is in services, apps, messaging, productivity, banking, entertainment, and cloud-based experiences. Scale shifted from PC to mobile ecosystems (Priority: 5/5): Mobile has an order-of-magnitude larger installed base than PCs, changing where developers, hardware makers, and platform power concentrate. IoT will likely extend the smartphone ecosystem (Priority: 4/5): Connected devices are expected to rely on smartphone components, cloud identity, and a few dominant ecosystems rather than creating a fully separate platform. Two winner ecosystems define the future (Priority: 4/5): Apple/iOS and Android are described as the stable centers of gravity for future innovation, analogous to Windows/Intel in the PC era. Startup opportunity lies in building on top of stable platforms (Priority: 4/5): Lower uncertainty and large foundational ecosystems make it easier to launch companies that solve real business and consumer problems on top of iOS, Android, and cloud services.

Key Arguments: The smartphone hardware layer has largely standardized, so device innovation is flattening while software and services continue to expand. The PC is not becoming the next frontier; it is nearing completion as a platform, which is why premium PCs look so polished. Platform shifts are best understood as ecosystem shifts, not just changes in form factor or device category. The next growth phase is not another phone-sized device; it is the explosion of software and services built on top of phones. IoT will probably not replace smartphone ecosystems; it will depend on them for chips, connectivity, identity, cloud control, and user experience. Apple and Android now function as two durable, large-scale computing platforms that attract developers and shape innovation. Enterprise and cloud computing remain large startup opportunities because they sit on top of stable infrastructure rather than requiring a new platform to emerge. Historical technology transitions repeat the pattern of one platform becoming dominant, then marooning the previous one rather than replacing it in a one-to-one conversion.

Data Points: PCs sold per year: About 300–325 million - Used to contrast the scale of the mature PC market with mobile. PC installed base: About 1.5 billion - Approximate number of PCs on Earth mentioned in the discussion. Mobile phones sold per year: About 2 billion - Shows the much larger scale of the mobile market compared with PCs. Smartphones plus tablets sold/base: About 2–2.5 billion - Mobile ecosystem scale when tablets are included. Mobile devices in use: About 5–6 billion - Estimated global active base, depending on geography and income. Mainframes active MIPS: 11.1 million MIPS - Historical comparison illustrating how tiny mainframe computing was relative to modern compute. Mainframe box count: Less than 100,000 - Approximate total number of mainframe computers ever in the world. Dedicated word processors sold: 500,000 to 1 million - Pre-PC office computing category cited as a historical predecessor. Mini computers sold: Just over 1 million - Scale of the minicomputer era before the PC displaced it. Apple II units sold: About 5–6 million - Example of an early mass-market personal computer platform. Commodore 64 units sold: About 17 million - Illustrates how home/living-room use expanded PC-like computing adoption. Ever sold PCs: About 4.5 billion - Approximate cumulative PC shipments referenced in the conversation. Apple active devices: 700–750 million - Used to show iOS has enough scale to remain a major ecosystem. Apple app store revenue share: About two-thirds - Indicates Apple’s strong monetization position within mobile. Apple web traffic share: Roughly half - Evidence that Apple remains a major mobile platform despite not being the only winner. Wintel share of total computing unit sales: About 15% - Shows the shrinking relative role of the legacy PC ecosystem.

Pivotal Quotes: "the feeling you have in mobile right now is we're kind of at the end of one wave and we haven't got another wave coming up yet" — Benedict Evans: Explaining why smartphone hardware feels less exciting than earlier platform shifts. "the things tend to look best and they tend to look most refined and they tend to have all the really coolest stuff just before they're about to be completely obsolete" — Stephen Elop (as quoted in the discussion context by Benedict Evans analogy): Used to compare polished late-stage PCs or sailing ships to mature platforms nearing displacement. "the smartphone is not a neutral platform" — Benedict Evans: Arguing that mobile ecosystems are deeply integrated with platform owners’ services and controls, unlike the web on PCs.

Implications: For startups and investors, the opportunity is not to invent a new phone replacement, but to build software, services, and connected products on stable mobile/cloud ecosystems. The winners will likely be those that exploit iOS/Android scale rather than fight the hardware plateau.