Computer Lifespan: The Real Numbers in 2026
You hear 5 to 7 years. Gartner says 3.7 years for a laptop. The reality? It depends — and you can measure it.
The problem is well known: most IT leaders refresh their fleet on a calendar. Three years, four years, systematic replacement. No diagnostics, no field data. Just a date on a spreadsheet. The result: perfectly functional machines get scrapped, and dying ones stay in production.
This article compiles the real numbers — by type, brand, and usage. You will also find a decision framework to arbitrate between keeping, repairing, reallocating, or replacing. Every decision is grounded in data, not the calendar.
TL;DR: Gartner estimates enterprise laptops at 3.7 years and desktops at 4.6 years — but Apple reaches 7 years 7 months and Dell ~7 years in business lines. Extending lifespan from 5 to 8 years cuts CO2 emissions by 69% (ADEME). The key: measure real condition before deciding.
What is the average lifespan of a computer in 2026?
Gartner estimates the average lifespan of an enterprise laptop at 3.7 years and a desktop at 4.6 years (Gartner, 2024). These are averages — not deadlines. Gartner confirmed in February 2026 a +15% extension by the end of 2026, driven by the DRAM memory crisis, budget constraints, and ESG goals.
But these figures mask enormous variation. An entry-level consumer laptop lasts 3 to 4 years. A mid-range business laptop easily reaches 4-5 years. A well-maintained ThinkPad, Latitude, or MacBook Pro? 5 to 7 years.
On the desktop side, the picture is more favorable. No battery to manage, better thermal dissipation, more easily replaceable components. Business desktops routinely last 5 to 7 years in office environments.
Why such a gap between consumer and enterprise? Build quality, first and foremost. Business lines use reinforced chassis, more durable keyboards, and selected components. Then there is maintenance: a managed fleet receives updates, cleanings, and preventive part replacements. A consumer laptop? Rarely.
The premium segment changes the equation too. A MacBook Pro M-series or a ThinkPad X1 Carbon does not follow the same trajectory as a 350-euro Chromebook. Lifespan depends as much on the entry price as on actual usage.
See how sobrii manages fleet lifecycleAccording to Gartner (2024), an enterprise laptop lasts an average of 3.7 years and a desktop 4.6 years, but these averages mask enormous gaps between consumer and business lines. Gartner confirmed in February 2026 a +15% extension by end of 2026, accelerated by the memory crisis.
Which PC brand lasts the longest?
Test-Achats measured the real-world lifespan of thousands of devices in 2024. Cross-referencing their data with enterprise fleet reports, here is the ranking of the most relevant brands in a professional context: Apple at 7 years 7 months, Dell at approximately 7 years (Latitude/Precision line), Lenovo at 6 years 6 months, HP at 6 years 3 months, and Acer at 5 years 8 months (Test-Achats, 2024).
These numbers need context. Test-Achats measures total lifespan, including the consumer segment. For Dell, the estimate reflects the Latitude and Precision lines in enterprise environments — the most widely deployed series in business fleets.
Apple benefits from a structural advantage: hardware-software control. macOS is optimized for the exact hardware. Security updates cover 5 to 7 years. It is a closed ecosystem, but it ages well.
For Lenovo and HP, the business line (ThinkPad, EliteBook) behaves very differently from the consumer line. A ThinkPad T-series easily lasts 6-7 years. An IdeaPad? More like 3-4 years. Same logic at Dell: a Latitude 5000 does not follow the same trajectory as an entry-level Inspiron.
An often underestimated factor: storage type. An SSD adds 2-3 years of perceived performance over an HDD. Machines still running mechanical drives show signs of sluggishness well before the CPU or RAM actually wears out.
According to Test-Achats (2024) and enterprise fleet data, Apple has the longest measured lifespan at 7 years 7 months, followed by Dell (Latitude/Precision) at approximately 7 years. The product line (business vs consumer) matters more than the logo on the lid.
What kills a computer? The 4 real factors
The battery dies before the processor. After 300 to 500 full charge cycles, a lithium-ion battery loses 20 to 30% of its original capacity. In an enterprise setting, that is roughly 3 years of daily use. The machine still works, but battery life drops below the threshold for mobile use.
Here are the four factors that actually kill a computer:
1. The battery. This is the first bottleneck for laptops. A battery at 60% capacity forces the user to stay plugged in. Replacement costs 80-150 euros on most business models — far less than a new machine.
2. OS obsolescence. Windows 10 lost support in October 2025. At that date, 41.7% of the global installed base was still running it (StatCounter, October 2025) — over 400 million PCs incompatible with Windows 11. Without security updates, every device becomes an attack vector.
3. Performance degradation. Storage fills up. Drivers age. Thermal throttling sets in as dust accumulates. It is not a failure — it is gradual erosion.
4. Physical damage. Hinges, keyboards, screens. Physical damage accounts for a significant share of replacements, especially on consumer lines with plastic chassis.
Is your 4-year-old machine really at end of life, or is it just the battery?
Per-device health log — incident and repair trackingStatCounter (October 2025) measured 41.7% of the global installed base still running Windows 10 at end of support — over 400 million PCs incompatible with Windows 11. ESUs cost $61 to $244/device/year, making OS obsolescence the most underestimated replacement driver.
The bathtub curve myth: failures do not follow the calendar
Service Express analyzed 500,000 devices over 20 years. Their finding: the failure rate stays flat between 0 and 0.2% well beyond 5 years of use (Service Express, 2024). The infamous bathtub curve — high failures at beginning and end of life — does not hold up against real data.
This might be the most counterintuitive data point in this article. The IT industry operates on the assumption that failures increase with age. Leasing contracts are structured around this idea. Refresh policies too.
But the data says otherwise. A 6-year-old machine does not fail more often than a 2-year-old one — as long as it is maintained. Catastrophic failures exist, but they do not follow a predictable age-based curve.
So why does this belief persist? Because it is simple. A fixed 3-4 year cycle is easy to budget, easy to plan, easy to explain to the CFO. But simple does not mean optimal.
The alternative: measure the actual condition of every device. Battery health score, disk performance, incident frequency. The data exists. You just need to collect it.
How many machines in your fleet are replaced "as a precaution" when they are still perfectly functional?
Request a free fleet auditAcross 500,000 devices studied over 20 years, Service Express (2024) finds a stable failure rate between 0 and 0.2% well beyond 5 years. The bathtub curve, the foundation of refresh policies, does not hold up.
How much does an aging PC cost? The TCO inflection point
Maintenance costs increase by 59% between year 1 and year 4 of a PC, according to a Wipro PSA / Intel study. But watch out: these are primarily IT time costs, not parts. The bulk of the increase comes from repeated support tickets, not hardware repairs.
The total cost of ownership (TCO) of a device is not just its purchase price. It includes deployment, configuration, licensing, support, and decommissioning. A 1,200-euro machine actually costs 3,000 to 4,500 euros over its lifetime.
The real inflection point is when the cost of maintaining exceeds the annualized cost of replacement. For most fleets, that point arrives between year 4 and year 6 — not at year 3 as standard leasing cycles suggest.
An aggravating factor in 2026: the memory crisis. TrendForce reports a 100% increase in PC DRAM prices in a single quarter (Q1 2026), driven by HBM demand for AI (TrendForce, 2026). The direct consequence: PC prices are climbing 17% and the sub-$500 segment is progressively disappearing. RAM upgrades are becoming significantly less cost-effective.
And then there is the hidden cost of Windows 10 ESU. $61 per device in year one, $122 in year two, $244 in year three. Across a fleet of 500 machines, it adds up fast. This cost alone can shift the TCO inflection point forward by 2 years.
The question is not "when does a PC cost too much." It is: "when does THIS device, with THIS usage and THESE conditions, cost more to keep than to replace?"
Calculate the real TCO of your fleetAccording to Wipro PSA / Intel, PC maintenance costs increase by 59% between year 1 and year 4. Combined with the 100% rise in PC DRAM prices in Q1 2026 (TrendForce) and PC prices climbing 17%, the TCO inflection point shifts on a per-device basis.
The carbon impact: keep or replace?
95% of a computer's carbon footprint comes from manufacturing, not use (ADEME/ARCEP, 2025). The joint ADEME-ARCEP 2025 report revised this figure upward from the commonly cited 80%. Extending a device's lifespan from 5 to 8 years cuts its emissions by 69%. This is one of the most powerful levers in any Green IT strategy.
Across the fleets we monitor, every avoided replacement preserves roughly 300+ kg of CO2. That figure includes raw material extraction, manufacturing, transportation, and packaging.
The regulatory landscape is accelerating this urgency. The EU's Corporate Sustainability Reporting Directive (CSRD) now requires large companies to disclose their digital environmental impact. The global e-waste problem is staggering: the UN estimates 62 million tonnes of e-waste were generated worldwide in 2022, growing at 2.6 million tonnes per year. Extending device lifespans is consistently ranked as the single most effective lever by environmental agencies, including ADEME.
Gartner (2024) estimates that 76% of enterprise devices are refurbishable — meaning they can receive a second life after an upgrade. That does not mean you should keep everything. It means you should measure before you discard.
Internal reallocation — reassigning a powerful machine to a less demanding use case — is often more impactful than external refurbishment. No shipping, no middleman, no delay.
What is the real carbon balance of your last refresh cycle?
Measure the kWh and CO2 impact of every deviceAccording to ADEME/ARCEP (2025), 95% of a computer's carbon footprint comes from manufacturing — significantly more than the commonly cited 80%. Extending its lifespan from 5 to 8 years cuts emissions by 69%. Gartner estimates that 76% of enterprise devices are refurbishable.
Why 2025-2026 is a peak refresh year
Gartner reports 270.2 million PCs shipped worldwide in 2025, a 9.1% increase (Gartner, January 2026). This peak is driven by the convergence of three forces: the end of Windows 10 support, the wave of AI PCs (31% of the market in 2025 per Gartner), and the aging of the post-COVID installed base.
Rewind. In 2020-2021, remote work triggered a massive PC buying boom. Companies equipped their teams in a rush. Many bought consumer-grade devices because business stock was unavailable. Those machines are now reaching end of life — 4-5 years later.
2022-2023: the hangover. Sales collapsed. IT budgets tightened. Fleets aged, but nobody was refreshing.
2024-2025: the wake-up call. The end of Windows 10 support forced hands. AI PCs arrived with dedicated NPUs — 31% of the market in 2025, 55% expected in 2026 (Gartner). But the DRAM memory crisis of early 2026 is slowing adoption: PC prices are climbing, and Gartner pushes the real AI PC inflection to 2028.
But is this mass refresh cycle rational? Not necessarily. A chunk of the base installed in 2020-2021 was premium business-grade. Those machines still have 2-3 years ahead of them. Replacing them now means wasting residual value.
The challenge for IT leaders in 2026: sort between devices that genuinely need replacement and those that deserve an extension. That takes data, not a calendar.
Gartner (January 2026) reports 270.2 million PCs shipped in 2025, up 9.1%. This refresh peak, driven by the end of Windows 10 and AI PCs (31% of the market), risks replacing devices that still have residual value.
Keep, Repair, Reallocate or Replace: a data-driven framework
Fewer than 30% of organizations use analytical decisions for IT replacement, according to Gartner (2024). The rest rely on calendars, gut feeling, or user complaints. This is a structural problem that costs millions every year.
Here is a four-decision framework, grounded in data:
Keep — Health score > 70, profile-appropriate
The device works well. The battery holds. Performance matches the user profile. No reason to touch it. Keep monitoring.
Repair — Health score 40-70, cost-effective repair
The device shows signs of wear, but repair cost stays under 50% of replacement. Battery swap, RAM upgrade, SSD replacement. These interventions cost 100 to 300 euros and add 2-3 years of life.
Reallocate — Health score 40-70, mismatched to current profile
This is the invisible option. A developer laptop that can no longer handle heavy dev work can still serve 2-3 years for an admin or front-desk profile. It avoids a new purchase AND extends the device's effective lifespan.
Replace — Health score < 40, or repair cost > 50% of replacement
The device has reached its measured end of life. Keeping it costs more than replacing it. In this case, replace — and refurbish the old one for a second life if possible.
Across the fleets we monitor, 40% of devices flagged for replacement by IT managers still had 2+ years of measured residual life. Four out of ten. That is money and carbon wasted.
Reallocation is what separates reactive fleet management from proactive fleet management. Before ordering a new device, check whether an existing one can cover the need.
Fewer than 30% of organizations use analytical decisions for IT refresh (Gartner, 2024). Across monitored fleets, 40% of devices flagged for replacement still had 2+ years of residual life — reallocation prevents these unnecessary replacements.
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Measure the real health of your fleet — request a sobrii auditFAQ
What is the average lifespan of a laptop?
Gartner estimates 3.7 years in enterprise. But that is an average. A business-grade model (ThinkPad, Latitude, MacBook Pro) lasts 5 to 7 years with preventive maintenance. An entry-level consumer laptop, 3 to 4 years. The product line and maintenance matter as much as the brand.
How do you know when to replace your laptop?
Watch three indicators: battery capacity (critical threshold at 60% of original), boot time (alert beyond 45 seconds), and support incident frequency. These objective data points are worth more than user perception. sobrii measures these indicators continuously.
Is it cheaper to repair or replace a PC?
If repair cost exceeds 50% of replacement AND the health score is below 40/100, replace. Otherwise, repair or reallocation to a less demanding profile avoids a new purchase. On average, a battery + SSD replacement costs 150-250 euros and adds 2-3 years.
Which laptop brand lasts the longest?
Test-Achats (2024) measures Apple at 7 years 7 months, followed by Dell (Latitude/Precision) at approximately 7 years and Lenovo at 6 years 6 months. The business vs consumer line matters more than the brand. A ThinkPad T-series or Latitude 5000 outlasts any entry-level consumer laptop.
How often should you refresh your IT fleet?
There is no single answer. Calendar-based replacement (3-4 years) wastes the residual value of 40% of devices. A data-driven approach measures each device individually and incorporates reallocation — a device that no longer fits one profile can still serve 2-3 years on another.
Conclusion
The real numbers are in. Here is what to take away:
- 3.7 years (laptop) and 4.6 years (desktop) are Gartner averages, not replacement deadlines.
- Failures do not follow the calendar. Service Express proves it across 500,000 devices: a stable 0-0.2% failure rate well beyond 5 years.
- Every avoided replacement preserves roughly 300+ kg of CO2. 95% of the footprint is manufacturing (ADEME/ARCEP 2025).
- The Keep/Repair/Reallocate/Replace framework turns a calendar expense into a data-driven decision.
- Reallocation is the invisible option: a PC that no longer fits one profile can still serve 2-3 years on another. No new purchase, no additional emissions.
Stop replacing on a calendar. Measure, decide, act.
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