Could We Build a Smartphone That Lasts 20 Years?
Imagine buying a smartphone in 2026 and still using it in 2046.
During those two decades, the battery wears out several times. The charging port eventually becomes loose. The screen breaks once. Mobile networks move beyond today’s 5G technology. Artificial intelligence becomes much more demanding, and the processor that felt extremely fast when you bought the phone begins to look ancient.
Yet you never throw the entire device away.
Instead, you replace the battery, swap the charging port, install a newer display and eventually upgrade the internal computing and radio hardware while keeping much of the same phone.
Could we actually build a smartphone that lasts 20 years?
Technically, yes.
The individual technologies required to make such a phone are not science fiction. Replaceable batteries already exist. Modular phones already exist. Manufacturers can support phones with security updates for seven or eight years. Governments are beginning to require longer spare-parts availability, stronger battery durability and better repairability.
The difficult part is bringing all of those ideas together for two full decades.
A realistic smartphone that lasts 20 years would probably not contain the same battery, processor, screen and modem it had on the day it was purchased. The goal would instead be to prevent one worn or obsolete component from forcing the owner to discard everything else.
That distinction changes the entire question.
A 20-Year Smartphone at a Glance
| Component | Could the Original Last 20 Years? | Better Long-Term Design |
|---|---|---|
| Chassis/frame | Possibly | Durable and reusable |
| Battery | Very unlikely | User-replaceable |
| Display | Possible but uncertain | Replaceable module |
| Charging port | Wear likely | Independent replaceable module |
| Cameras | May become outdated | Modular cameras |
| Speakers/microphones | May fail | Replace individually |
| Storage | Could survive but may become insufficient | Replaceable or expandable |
| Processor | May physically work but become obsolete | Upgradeable mainboard |
| Cellular modem | Standards will change | Replaceable radio/mainboard |
| Operating system | Original version will not last | Long-term upgrades |
| Security hardware | Likely to age technologically | Upgrade with mainboard |
| Case/back cover | Could last many years | Easy to replace |
The table makes the central idea clear: building a smartphone that lasts 20 years does not require creating indestructible components. It requires creating a phone that survives component replacement.
1. The Battery Would Have to Be Replaceable
The battery is the most obvious place to begin because no realistic lithium-ion battery should be expected to provide original performance for 20 years of normal smartphone use.
Rechargeable batteries gradually lose capacity through chemical aging and charging cycles. The News Ink’s detailed explanation of why smartphone battery life does not last a week explains why heat, charging cycles, demanding displays, cellular radios and powerful processors all affect battery performance.
European Union rules applying to smartphones placed on the EU market since June 2025 now require covered batteries to withstand at least 800 full charge and discharge cycles while retaining at least 80% of their original capacity.
European Commission — Smartphone Ecodesign Requirements
That is a major durability improvement, but 800 cycles are nowhere near 20 years of daily use.
A smartphone that lasts 20 years would therefore probably use several batteries during its life.
That should not be considered a failure.
Cars require new tires. Houses need new roofs. Watches need replacement batteries. Long-lived products survive because consumable components can be replaced without replacing the entire product.
Smartphones should work the same way.
2. Battery Replacement Would Need to Be Easy
Making a battery theoretically replaceable is not enough.
If replacement requires heat guns, solvents, special adhesive, specialized technicians and a large repair bill, many users will simply buy another phone.
A smartphone that lasts 20 years should treat battery replacement as routine maintenance.
Fairphone provides one of the clearest real-world examples. Its current Fairphone generation uses a removable battery and a highly modular internal design. Fairphone says its Gen. 6 platform includes 12 replaceable parts, with components such as the battery, display and USB-C port designed for straightforward replacement.
Fairphone — The Fairphone Gen. 6
This does not prove the phone will survive for 20 years.
It does prove that a modern smartphone can remain relatively slim, capable and attractive without permanently gluing every important component together.
3. The Screen Would Need to Be Independent From the Rest of the Phone
Displays are another common point of failure.
A phone can be working perfectly when one accidental drop cracks the screen.
On a poorly repairable design, that damage may lead to an expensive repair or complete device replacement. On a long-lived design, the display should simply be another replaceable component.
A smartphone that lasts 20 years would need a display assembly that can be replaced without destroying the battery, frame or motherboard.
The same principle applies if display technology improves.
Imagine someone buys a phone with an OLED panel in 2026. In 2038, newer panels may be brighter, more efficient and more durable.
A modular design could potentially allow an upgraded display while retaining the rest of the device.
The goal is not merely repair.
It is preventing the lifespan of the entire phone from being determined by whichever component fails first.
4. Charging Ports Would Need to Be Replaceable
Charging ports experience physical wear.
A cable may be inserted thousands of times. Dirt enters the connector. Contacts become damaged. The port can loosen.
Yet on some smartphones, replacing a charging connector can involve working on a larger assembly or even the mainboard.
That makes little sense for a smartphone that lasts 20 years.
The charging port should be its own inexpensive module.
Fairphone’s current modular system demonstrates that a USB-C port can be replaceable independently.
Standardization also helps. The European Union now requires USB-C charging for many categories of portable electronics, including smartphones sold in the EU.
European Commission — EU Common Charger Rules
A common interface reduces unnecessary charger replacement and makes long-term accessory compatibility easier.
Whether USB-C itself remains the dominant physical connector for another 20 years is impossible to know. That uncertainty is another argument for making the connector modular.
5. The Processor Is Where the 20-Year Dream Becomes Difficult
A battery can be replaced.
A screen can be replaced.
A processor is more complicated.
Modern smartphone processors integrate an enormous amount of functionality into one system-on-chip. They can include CPU cores, graphics processors, AI accelerators, image-processing hardware and security components.
A processor purchased today may still physically work in 2046.
That does not mean it will remain useful.
Applications become more demanding. Operating systems add features. Encryption standards change. AI software expects newer accelerators. Camera processing becomes more complex.
The News Ink’s Artificial Intelligence Explained guide shows how quickly AI capability is moving into everyday devices.
A smartphone that lasts 20 years would therefore probably need something radical: an upgradeable compute module or mainboard.
Instead of replacing the entire phone when the processor becomes obsolete, the owner could replace the board containing the processor, memory and security hardware.
That would make the smartphone more like an upgradeable computer.
6. The Cellular Modem May Be an Even Bigger Problem
There is another reason the original mainboard may not survive 20 years of useful service.
Mobile networks change.
A phone that once worked perfectly can lose cellular compatibility when carriers retire the network technology it depends on.
This has already happened.
Major U.S. carriers shut down legacy 3G networks around 2022 and early 2023. FCC records concerning Verizon’s network transition note that the carrier stopped activating new 3G-only devices before shutting down the legacy network.
FCC — Verizon 3G Network Retirement
The phones did not physically break.
The infrastructure around them changed.
Now imagine trying to design a smartphone that lasts 20 years starting in 2026.
Today’s device supports 4G and 5G.
By 2046, mobile networks may use technologies and frequency arrangements that do not exist today.
A truly long-lived smartphone may therefore need an upgradeable modem, antenna system or entire radio/mainboard module.
Otherwise, a perfectly functioning 20-year-old phone could become a miniature Wi-Fi tablet because cellular networks have moved on.
7. Twenty Years of Software Support Would Be Harder Than Twenty Years of Hardware
Hardware is only half the problem.
Modern smartphones need security updates.
New vulnerabilities are discovered constantly. Encryption evolves. Browser engines change. Mobile operating systems receive new security protections. Attack techniques improve.
Using an unsupported phone for sensitive activities such as banking becomes increasingly risky.
Google has significantly extended smartphone support. Pixel 8 and later phones currently receive seven years of operating-system and security updates from their original availability date.
Google — Pixel Software Update Policy
Fairphone currently promises support for its Gen. 6 platform until at least 2033, providing roughly eight years of support from launch.
Those commitments are impressive compared with earlier smartphone generations.
They are still far short of the two decades required for a smartphone that lasts 20 years.
Twenty-year support would require manufacturers to maintain security patches, drivers, firmware and compatibility across several generations of hardware and software.
That is expensive.
8. Long-Term Software Support Requires Chip Makers Too
A smartphone company cannot necessarily support hardware forever by itself.
The operating system depends on lower-level software supplied by component manufacturers.
That can include drivers and firmware for:
processors;
graphics;
modems;
cameras;
Wi-Fi;
Bluetooth;
security hardware.
Android’s own kernel documentation shows that specific kernel branches have defined support lifetimes. When old kernels reach end of life, maintaining secure devices becomes progressively harder.
Android Open Source Project — Android Common Kernels
This makes a smartphone that lasts 20 years an industry-wide project rather than simply a promise from one phone company.
The chipset vendor, operating-system developer, phone maker and app ecosystem all matter.
One manufacturer cannot maintain a 20-year product if essential components become unsupported five years after launch.
9. Open-Source Software Could Extend the Phone’s Life
There is one possible escape from manufacturer dependence.
Open-source software.
If a manufacturer publishes enough source code and hardware documentation, independent developers can sometimes continue supporting a phone after official updates end.
Fairphone actively supports this idea and publishes resources that help communities work with alternative operating systems including LineageOS, /e/OS and other projects.
That could become extremely important for a smartphone that lasts 20 years.
Imagine the manufacturer officially supports the phone for 10 years.
After that, a community operating system keeps the hardware alive for another decade.
This already happens with some computers and Android devices.
However, open-source support is not a perfect solution. Banking apps, DRM systems, secure-payment features and hardware-backed security can depend on manufacturer certification and proprietary services.
Community software can extend useful life, but a genuine 20-year phone should not depend entirely on volunteers saving it after the manufacturer walks away.
10. Security Hardware Would Eventually Need an Upgrade
A 20-year-old physical frame may still be perfectly acceptable.
Twenty-year-old security hardware is a different matter.
Modern smartphones use specialized components and trusted execution environments for:
biometric authentication;
encryption keys;
secure boot;
payments;
passkeys;
device integrity.
The News Ink’s Cybersecurity Explained guide explains why supported software, secure identity and current cryptography matter so much for modern connected devices.
Security expectations in 2046 will almost certainly differ from those of 2026.
A smartphone that lasts 20 years should therefore allow security hardware to evolve.
The easiest solution may again be an upgradeable mainboard containing the processor, secure hardware and modem.
The phone’s identity becomes the durable platform rather than one permanent set of electronics.
11. Spare Parts Would Have to Exist for Two Decades
Repairability is meaningless without replacement parts.
A manufacturer can build the easiest phone in the world to open, but that does not help if nobody sells a compatible battery in 2039.
This may be one of the hardest business problems behind a smartphone that lasts 20 years.
European rules now require manufacturers of covered smartphones to make critical spare parts available for seven years after the model stops being sold.
Required parts include batteries, displays, cameras, charging ports and other components under the applicable conditions.
That is a substantial improvement.
But 20 years is another scale entirely.
A manufacturer might have to keep:
production equipment;
technical drawings;
supplier contracts;
molds;
software tools;
replacement inventories
available long after the original phone disappeared from stores.
Standardized components would make that much easier.
12. Standardization Could Be the Secret to a 20-Year Phone
Desktop computers can remain useful for a long time partly because many parts follow common standards.
A user can replace a monitor without replacing the motherboard. Storage drives use standard interfaces. Keyboards and mice can be replaced independently.
Smartphones are much more customized.
Different models may use completely different:
battery shapes;
camera connectors;
screen assemblies;
motherboards;
charging boards.
A smartphone that lasts 20 years would benefit enormously from standard modules.
Imagine if several phone generations shared the same:
battery size;
display connector;
mainboard dimensions;
camera interface;
USB module;
speaker mounting points.
Third-party companies could continue manufacturing replacements long after the original manufacturer stopped producing the phone.
The phone would become closer to a hardware platform than a yearly disposable product.
13. Durability Would Need to Improve Too
Repairability does not mean a phone should break easily.
Ideally, the owner should rarely need to open it.
A smartphone that lasts 20 years would need:
a strong frame;
scratch-resistant materials;
good drop resistance;
water protection;
replaceable seals;
protected internal components.
European smartphone ecodesign regulations now include requirements related to accidental drops, scratches, dust and water protection alongside repairability.
That is important because longevity requires both strategies.
First, prevent damage.
Second, make damage repairable when prevention fails.
A phone that is easy to repair but breaks every six months is not sustainable.
Neither is an extremely durable phone that becomes impossible to repair after the first serious accident.
14. Water Resistance and Repairability Have to Coexist
Manufacturers sometimes justify heavily sealed smartphones by pointing to water resistance.
There is a legitimate engineering trade-off here.
Adhesive can help create strong seals. Removable panels create interfaces where water could enter.
But modular design and water resistance are not mutually exclusive.
Engineers can use:
gaskets;
replaceable seals;
screws;
compression systems;
properly designed enclosures.
The challenge is ensuring the phone remains water resistant after repeated repairs.
A smartphone that lasts 20 years would therefore need replaceable sealing materials and clear procedures for restoring protection after components are changed.
The phone should not become increasingly vulnerable every time the battery is replaced.
15. A 20-Year Smartphone Would Probably Need Several Batteries
Even with better battery chemistry, a single battery is the component least likely to make it through two decades.
European regulations require certain new smartphone batteries to retain at least 80% capacity after 800 cycles. Some designs meeting stricter conditions around battery replacement have additional durability requirements.
But 20 years represents thousands of days.
A heavy user could accumulate many thousands of partial charging cycles over that period.
So a smartphone that lasts 20 years might realistically use:
the original battery for several years;
a second battery later;
a third battery after that;
perhaps additional replacements depending on use.
That is perfectly reasonable.
The important environmental question is whether replacing a $40–$100 battery saves the rest of a functioning device from becoming electronic waste.
16. Cameras Would Create Another Upgrade Problem
Smartphone cameras evolve rapidly.
A 20-year-old camera might still take photographs.
Users may no longer consider the results acceptable.
This creates an interesting question.
Should a smartphone that lasts 20 years include upgradeable cameras?
Potentially.
Camera modules could be replaceable independently from the motherboard and display.
An owner who does not care about photography could keep the original cameras.
Someone who wants better image quality could install newer modules.
The same modular philosophy could apply to storage and speakers.
Not every component needs to be upgraded simply because one component improves.
That is the opposite of the current model, where buying a better camera usually means buying an entirely new phone.
17. Artificial Intelligence Could Make Processor Upgrades Necessary
AI may become one of the biggest sources of technological obsolescence.
Phones increasingly run models directly on the device for:
image processing;
translation;
voice recognition;
summarization;
search;
personal assistants;
generative features.
Future AI may require far more capable neural processing hardware.
A processor designed in 2026 may remain adequate for messaging and browsing in 2040 but struggle with future local AI software.
That does not have to kill a smartphone that lasts 20 years.
If the mainboard is replaceable, users who need new AI features can upgrade the compute module.
Those who only need calls, messages, maps and basic apps can keep older hardware longer.
Modularity allows different users to decide when performance has genuinely become insufficient.
18. App Developers Would Also Need to Support Long-Lived Devices
A manufacturer could provide security updates for 20 years and still face another problem.
Apps change.
Developers stop supporting old operating-system versions. New APIs become mandatory. Banking software raises minimum-security requirements. Games expect faster graphics.
That means building a smartphone that lasts 20 years also requires maintaining compatibility with the wider software ecosystem.
One solution would be to keep the operating system modern through regular updates.
Another is replaceable compute hardware that allows newer operating-system versions to run.
A long-lived phone must evolve enough that app developers still see it as a current device.
Physical survival alone is not enough.
19. Apple’s Current Service Model Shows How Far 20 Years Really Is
Apple provides a useful comparison.
The company currently classifies products as vintage after they have been out of distribution for more than five but less than seven years. Products generally become obsolete after more than seven years, after which normal Apple hardware service ends.
Apple — Service After Warranty Expiration
This does not mean every old iPhone stops functioning after seven years.
Many continue working.
But it demonstrates how much larger a 20-year support commitment would be compared with current mainstream electronics practices.
Building a smartphone that lasts 20 years is therefore not mainly a challenge of making stronger aluminum.
It requires creating an after-sales ecosystem that lasts almost three times longer than many current formal service programs.
20. Fairphone Shows That the Basic Idea Already Works
The closest real-world evidence comes from companies deliberately designing around longevity.
The current Fairphone Gen. 6 platform offers:
12 replaceable parts;
a removable battery;
a replaceable USB-C port;
replaceable cameras and display;
a five-year warranty;
software support until at least 2033.
Fairphone also encourages alternative operating-system development.
A smartphone that lasts 20 years would have to take this philosophy much further, but the basic engineering concept is already proven.
You can make a smartphone that is modular.
You can make the battery replaceable.
You can sell individual replacement components.
You can provide much longer software support than was common a decade ago.
The remaining challenge is extending those commitments from roughly eight years toward twenty.
21. A 20-Year Phone Could Reduce Electronic Waste
Longevity matters because smartphones do not disappear when people replace them.
The News Ink’s article on what happens to old smartphones explains how devices can be reused, refurbished, dismantled for parts or recycled for materials such as copper and precious metals.
The GSMA says the average current mobile-phone lifespan is around three years, despite a technical lifespan that can be considerably longer, and estimates that billions of dormant phones are sitting unused worldwide.
GSMA — Mobile Phone Longevity and Circularity
A smartphone that lasts 20 years would not eliminate electronic waste because batteries, screens and boards would still eventually need replacement.
But it could dramatically change what becomes waste.
Instead of discarding a complete device every few years, society could replace only the parts that are genuinely worn or obsolete.
22. The Business Model May Be Harder to Change Than the Engineering
Suppose a smartphone manufacturer successfully builds a phone that customers keep for 20 years.
That creates an awkward question.
How often does the company sell another phone?
Current manufacturers earn substantial revenue from repeated hardware upgrades.
A long-lived product changes that relationship.
Instead of repeatedly selling complete devices, the company might need to make money from:
replacement components;
mainboard upgrades;
battery sales;
repair services;
software subscriptions;
cloud services;
accessories.
A smartphone that lasts 20 years therefore requires not just new engineering but a different economic model.
The manufacturer needs to remain profitable even when keeping a customer on the same hardware platform is considered success rather than lost sales.
23. Would a 20-Year Phone Actually Save Money?
Potentially, but only if replacement components remain affordable.
Imagine buying one premium phone for $900 and keeping it for 20 years while replacing:
four batteries;
one screen;
two charging ports;
one camera;
two mainboards.
The total cost might still be lower than purchasing a new $800–$1,200 device every three or four years.
But that depends on repair pricing.
If each mainboard costs almost as much as an entire new phone, modularity provides little financial incentive.
A successful smartphone that lasts 20 years would therefore need transparent and reasonably priced parts.
Repairability must be economically practical, not merely technically possible.
24. Would It Still Be the Same Smartphone?
This creates a philosophical problem similar to the Ship of Theseus.
Suppose that by 2046 your phone has:
its original frame;
a fourth battery;
a second display;
a third mainboard;
a newer camera;
a replacement charging port.
Is it still the phone you bought in 2026?
From an engineering perspective, that question is not particularly important.
The real benefit is that useful components were not discarded simply because another component needed upgrading.
The News Ink explored the same issue in Could a Circular Laptop Really Last for 20 Years?.
The realistic definition of a long-lived electronic device is not one in which every atom remains original.
It is a platform that can continue serving its owner through repair and selective upgrades.
25. So Could We Build One Today?
Yes, with qualifications.
We could design a smartphone that lasts 20 years today with a durable chassis, replaceable battery, modular display, replaceable charging port, replaceable cameras and a mainboard designed to be upgraded.
The engineering is plausible.
The harder part is guaranteeing what happens in 2046.
Will replacement boards still be manufactured?
Will cellular modules support whatever networks exist?
Will the operating system still receive patches?
Will banking apps recognize the device as secure?
Will the manufacturer still exist?
Will replacement displays still be available?
Those are ecosystem questions rather than simple engineering questions.
The phone can be designed for 20 years.
Proving that it actually lasts 20 years requires someone to support it for 20 years.
What a Real 20-Year Smartphone Would Need
A realistic design would probably require these ten principles:
- User-replaceable battery so normal chemical aging never kills the phone.
- Replaceable display so one cracked screen does not end the device’s life.
- Independent charging port because connectors wear out.
- Replaceable cameras and speakers instead of permanently integrating every component.
- Upgradeable mainboard so processor, modem and security hardware can evolve.
- Standardized modules so replacement parts can come from more than one supplier.
- Twenty years of software and security planning, including open-source fallback.
- Long-term spare-parts availability rather than abandoning the model after a few years.
- Repair documentation and affordable parts so repairs remain economically sensible.
- A business model built around upgrades and maintenance, not complete replacement.
No current mainstream smartphone provides all ten for two decades.
But the pieces already exist separately.
Frequently Asked Questions
Could we really build a smartphone that lasts 20 years?
Yes. A smartphone that lasts 20 years is technically possible if the device is designed around replaceable batteries, repairable components, upgradeable computing hardware and extremely long software support. It would not realistically keep every original component for all 20 years.
Would one battery last 20 years?
Almost certainly not. Lithium-ion batteries chemically age and lose capacity. A 20-year smartphone would need several replacement batteries during its lifetime.
Would the processor last 20 years?
It might physically survive, but it would probably become technologically obsolete. Future operating systems, AI features, security requirements and apps may require newer hardware.
Could the processor be upgraded?
Technically yes if the phone were designed with a replaceable mainboard or compute module. Most current smartphones are not designed this way.
What smartphone is closest to this idea today?
Fairphone is one of the strongest current examples because its Gen. 6 platform offers 12 replaceable parts, a removable battery and software support through at least 2033. However, it does not promise 20 years.
How long does Google support Pixel phones?
Google currently promises seven years of OS and security updates for Pixel 8 and later models, starting from their initial availability date.
Why would cellular networks be a problem?
Mobile standards evolve. Older 3G-only devices became unusable on networks that shut down 3G service even though their hardware still functioned. A 20-year phone may therefore need an upgradeable modem.
Would a modular smartphone be thicker?
Potentially. Easy disassembly, sockets, screws and replaceable modules can require more physical space than permanently glued components. Good engineering can minimize the difference, but extreme thinness and maximum repairability can conflict.
Could a repairable phone still be waterproof?
Yes, but it requires properly designed seals and replacement procedures. Water resistance may need to be restored after repairs.
Would apps work for 20 years?
Not necessarily on the original hardware and software. A long-lived smartphone would need continuous OS upgrades or hardware upgrades to remain compatible with modern applications.
Would a 20-year phone reduce e-waste?
Potentially significantly. Components would still become waste, but replacing a battery or mainboard creates much less waste than discarding the complete phone every few years.
Would a smartphone that lasts 20 years be cheaper?
It could be over its full lifespan if the initial phone and replacement modules were reasonably priced. Expensive proprietary components could undermine the economic advantage.
Do EU rules require phones to last 20 years?
No. Current EU rules improve durability, repairability and software support, but they do not require a 20-year smartphone. Covered spare parts generally have to remain available for seven years after a model stops being sold.
A Smartphone That Lasts 20 Years Would Not Be Frozen in Time
The biggest mistake is imagining a 20-year smartphone as one perfect device sealed in 2026 and somehow still completely modern in 2046.
That is probably unrealistic.
Technology changes too quickly.
Batteries wear.
Displays break.
Processors become outdated.
Mobile networks evolve.
Security requirements change.
But none of those facts proves that the entire smartphone needs to be replaced every few years.
A better model is evolutionary.
You buy a durable phone platform.
After four years, the battery is replaced.
Several years later, a damaged charging port is changed.
Eventually the mainboard is upgraded, giving the phone a newer processor, modem and security hardware.
The screen remains because it is still perfectly good.
Later, perhaps the camera is upgraded independently.
Twenty years later, the phone may contain several newer components while still reusing its durable frame, buttons, speakers or other parts.
That is what a genuine smartphone that lasts 20 years would look like.
Current technology already points in that direction.
Fairphone demonstrates that batteries, screens, cameras and ports can be made modular. Google demonstrates that major phone manufacturers can offer seven years of software updates. European regulations are forcing longer spare-parts availability and better battery durability. USB-C regulation demonstrates that standardization across manufacturers is possible.
None of those developments alone creates a smartphone that lasts 20 years.
Together, they show that short smartphone lifespans are not purely unavoidable laws of technology.
They are partly design decisions.
A manufacturer can glue a battery permanently into a device, or it can make the battery replaceable. It can solder every vulnerable component onto one expensive board, or separate some of them into modules. It can stop updates after a few years, or invest in longer support.
The News Ink’s articles on smartphone battery life and old smartphone recycling show the two ends of the same problem. Smartphones consume enormous technological resources while in use, and eventually those materials must be reused, recovered or discarded.
A smartphone that lasts 20 years would attack the problem much earlier.
Instead of asking how to recycle an entire phone after four years, it asks why the entire phone needed to become waste in the first place.
The hardest obstacle may ultimately be neither batteries nor screens.
It may be commitment.
Someone has to promise that batteries will still exist in 2038. Someone has to build a compatible mainboard in 2042. Someone has to maintain security updates. Someone has to document repairs and keep replacement components affordable.
That requires manufacturers to think of smartphones less like disposable annual products and more like long-lived technology platforms.
If that happens, a smartphone that lasts 20 years is not impossible.
We already know how to build most of the pieces.
The real challenge is building an industry willing to keep those pieces working together for two decades.
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