"Buy refurbished, save the planet" is an easy line to write. Here is what the numbers actually say, what they do not, and how to make sure a refurbished laptop really is the greener choice.
The short answer
Yes, in most cases. About two-thirds of a modern laptop's lifetime carbon footprint comes from making it, not from using it. Keeping an existing laptop working for another three to four years avoids most of the emissions of building a new one. The catch is that this only holds if the refurbished laptop is genuinely fit for years of use, and if it is recycled properly when it finally retires.
Where a laptop's carbon comes from
Dell publishes a product carbon footprint for its business laptops. For the Latitude 3450, a current 14-inch model, the lifetime total is about 121 kg of CO2-equivalent:
| Stage | kg CO2e | Share |
|---|---|---|
| Manufacturing | 82 | 68% |
| Use (electricity over its life) | 34 | 28% |
| Shipping | 3 | 2% |
| End of life | 2 | 2% |
Two things follow from this. First, the electricity a laptop uses is a small part of its story. Second, the single biggest thing you can do is make each laptop that has already been built last longer.
A simple way to see it: if a laptop's 82 kg of manufacturing emissions are spread over 4 years of use, that is about 20 kg a year. If the same laptop is refurbished and used for 8 years in total, it drops to about 10 kg a year. Nothing about the laptop changed. It just did its job for longer. (This is our illustration using Dell's figures, not a Dell claim.)
Do laptops really last that long?
Business laptops are designed for it. A 2024 report by the consultancy Atos, based on data from 28.5 million devices in companies, found that laptops are typically replaced long before they need to be, that performance only starts to dip from around year four, and that device lifetimes could be roughly doubled without users noticing. That is exactly the gap refurbishing fills: a company retires a three- or four-year-old fleet, and the laptops still have years of good work in them.
One UK remanufacturer, Circular Computing, puts the saving at about 316 kg of CO2e for each remanufactured laptop bought instead of a new one. That figure comes from the industry itself and uses a wider footprint than Dell's, so treat it as an upper estimate. The direction is the same.
The e-waste side of the story
Carbon is only half of it. When laptops are thrown away early, they become e-waste, and India has a lot of it.
- India generated about 17.5 lakh tonnes of e-waste in 2023-24, up from about 10.1 lakh tonnes in 2019-20, a rise of roughly 73% in five years (government figures shared in the Rajya Sabha).
- About 43% was processed by the formal system in 2023-24. That is a big improvement from 22% in 2019-20, but it still leaves more than half unaccounted for.
- Globally, 62 billion kg of e-waste was generated in 2022 and only about 22% was formally collected and recycled. India is the world's third-largest generator.
E-waste that does not reach an authorised recycler is often broken open by hand to recover copper and other metals, which exposes workers and soil to lead, mercury and other toxins. A laptop that is reused does not enter that stream at all, at least not for several more years.
When refurbished is not automatically greener
To be fair, there are cases where the benefit shrinks:
- If it fails early. A cheap "refurbished" laptop that dies in six months and gets replaced has saved nothing. Quality of the refurbishing matters more than the label.
- If parts are replaced wholesale. New batteries, screens and keyboards each carry their own footprint. Replacing a worn battery is still far better than a new laptop, but it is not zero.
- If the old one is dumped. Buying refurbished helps most when your old device is also passed on or recycled properly, not left in a drawer or sold to an informal scrap dealer.
How to buy refurbished the green way
- Pick business-grade. Dell Latitude, HP EliteBook and ProBook, Lenovo ThinkPad: built for long service, with replaceable RAM, storage and batteries.
- Buy certified, with a warranty. A tested, warrantied laptop is far more likely to see out its second life. See refurbished vs used.
- Buy enough for years, not months. 8GB RAM and an SSD at minimum, 16GB if you multitask. Our 12-point checklist helps you check.
- Retire your old device properly. Pass it on to someone who needs it, or give it to an authorised recycler.
Where Reboot fits in
Reboot has worked at both ends of this since 2012. We take back laptops and desktops from companies when they upgrade, wipe the data properly, and put every device through a 16-point check before it is sold with a warranty. What cannot be reused goes to our own authorised e-waste recycling unit in Surat, so it is processed in the formal system rather than ending up in the informal one.
If you are buying a laptop this Diwali, our Diwali gift guide lists picks by budget, and our Diwali story, the goat, the blue jackal and your old laptop, tells the same idea through two Panchatantra tales.
Browse certified refurbished laptops →
Sources
- Laptop carbon footprint: Dell Latitude 3450 product carbon footprint (via Climatiq).
- Device lifetimes: Computing, "Laptop lifetimes can be doubled without affecting users" (Atos report, 2024), which also cites Circular Computing's per-laptop saving estimate.
- India e-waste: Down To Earth, "India's e-waste surges by 73% in 5 years" (Rajya Sabha replies, 2024).
- Global e-waste: The Global E-waste Monitor 2024 (ITU and UNITAR).