The Rare Earth Reality: What's Actually Inside Your Phone
Your Phone Is a Chunk of the Periodic Table
There are 118 elements on the periodic table. A modern smartphone contains around 62 of them. That's not a typo - more than half the known elements on Earth are crammed into a slab of glass and metal that most people leave gathering dust in a kitchen drawer.
We talk about gold a lot in the recycling world, and for good reason. But gold is almost the easy part. The elements that are genuinely difficult to replace - the ones that make your phone vibrate, display colour and connect to a network - are far stranger, far rarer and far more geopolitically complicated than a bit of precious metal.
So let's get specific. Here's what's actually hiding inside your handset, where it comes from and why it matters when you sell your phone rather than bin it.
Neodymium: The Element That Makes Your Phone Vibrate
Feel that buzz when a notification comes in? That's neodymium at work. Neodymium is a rare earth element used to make the incredibly powerful permanent magnets inside your phone's vibration motor and speakers. Neodymium-iron-boron magnets are the strongest type of permanent magnet known to science, and without them your phone's speaker would be the size of a baked bean tin.
Here's the catch: around 60% of the world's neodymium is mined in China, according to the British Geological Survey's 2023 risk list. That makes it one of the most supply-chain-vulnerable materials in modern electronics. The UK has essentially zero domestic production.
A single iPhone 17 Pro Max - which can fetch up to £1,191 on OnRecycle - contains small but meaningful quantities of neodymium spread across multiple components. When that phone gets properly recycled, specialist smelters can recover those magnets. When it goes to landfill, that neodymium is gone for good.
Tantalum: The Conflict Mineral Powering Your Capacitors
Tantalum is the element that probably has the most troubling backstory of anything in your pocket. It's derived from a mineral called coltan (columbite-tantalite), and the Democratic Republic of Congo holds a significant share of global reserves. The UN Group of Experts has repeatedly documented links between coltan mining and armed conflict in the region - it's one of the original "conflict minerals" flagged under the US Dodd-Frank Act.
Why is it in your phone at all? Because tantalum capacitors are extraordinarily efficient at storing and releasing electrical charge in a tiny space. Your phone contains dozens of them. They're what allow circuit boards to be as small and power-efficient as they are. There's currently no viable substitute that performs the same job at the same scale.
The good news is that tantalum is one of the more recoverable materials in e-waste streams. The bad news is that the British Geological Survey rates it as one of the highest-risk materials for supply disruption in the UK economy. Every phone that gets recycled properly reduces, even fractionally, the pressure on those mining operations.
Cobalt: The Battery Element With a Serious Supply Problem
Cobalt is probably the rare element you've heard most about recently, and for good reason. It's a core component of lithium-ion battery cathodes - the chemistry that lets your phone hold a charge at all. Without cobalt, current battery technology simply doesn't work at the energy density we've come to expect.
The numbers are stark. The DRC produces roughly 70% of the world's cobalt supply, according to the US Geological Survey's 2025 Mineral Commodity Summaries. Amnesty International has extensively documented child labour in artisanal cobalt mines there. Major manufacturers including Apple and Samsung have faced intense scrutiny over their supply chains as a result.
A single smartphone battery contains between 5 and 20 grams of cobalt depending on capacity. Scale that up to the 5.3 billion phones the GSMA estimates are currently in use worldwide, and you're looking at a truly enormous quantity of a genuinely scarce, ethically fraught material sitting in people's homes.
From the devices we see coming through our recycler network, batteries are one of the components where proper processing makes the biggest difference. Cobalt recovered from old batteries can go back into new ones - a closed loop that reduces the need for fresh mining.
The Elements You've Never Heard Of (But Your Phone Can't Live Without)
Beyond the big three, your phone contains a supporting cast of elements that rarely make headlines but are just as hard to replace.
Indium is used in the transparent conductive layer of your touchscreen (indium tin oxide). Global reserves are estimated at around 50,000 tonnes by the USGS - that sounds like a lot until you consider how fast consumption is growing. China produces around 57% of the world's supply.
Dysprosium and terbium - both rare earth elements - are used alongside neodymium in magnets to stop them losing their magnetic properties at high temperatures. Both appear on the EU's Critical Raw Materials list, updated in 2023, which flags them as essential to the green and digital economy with high supply risk.
Yttrium and europium were historically used in display phosphors. Gallium and germanium go into the semiconductors that process everything your phone does. Platinum group metals turn up in the catalytic layers of fuel cells and some sensor components. The list genuinely does go on.
Thing is, none of these are present in huge quantities individually. But they're present in combination, in a device you probably have two or three of lying around the house.
What Recycling Actually Recovers (And What It Doesn't)
It's worth being honest here, because the recycling industry doesn't always tell the full story. Not every element in your phone gets recovered even by the best recyclers. The process is complicated, and some materials are present in such small quantities or in such difficult-to-separate combinations that current technology can't economically extract them.
Gold, silver, copper and palladium are reliably recovered at scale - they're the economic backbone of e-waste processing. Cobalt from batteries is increasingly well-recovered as demand drives investment in the process. Neodymium magnets can be recovered if they're separated before smelting, though this requires more sophisticated disassembly than most mass recyclers currently do.
The rarer rare earths - dysprosium, terbium, yttrium - are much harder. The EU-funded REEtec and SUSMAGPRO projects have been working on improving rare earth recovery from e-waste, but commercial-scale recovery of these elements from phones is still limited. That's a genuine gap in the current system.
Still, choosing a reputable recycler over simply binning a device makes a meaningful difference. Our recycler network - which includes companies like Gadget Reclaim, SellMyPhone.org and Vendi - works with downstream processors who handle materials responsibly. That's a very different outcome to a phone ending up in an informal e-waste dump in Ghana or Nigeria, where burning circuit boards to recover copper releases toxic fumes and leaves everything else behind.
What Your Old Phone Is Actually Worth Right Now
Here's where the abstract becomes practical. The materials inside your phone have real monetary value, and that value is reflected in what recyclers will pay you today.
An iPhone 17 Pro Max with 1TB of storage is currently fetching up to £1,191 through our platform. A Samsung Galaxy S26 Ultra with 1TB is worth up to £1,209. Even older flagships hold real value - and the sooner you sell, the better, because phone values depreciate faster than almost any other consumer product.
The reason recyclers pay these prices isn't charity. It's because recovering materials from existing devices is cheaper and more reliable than sourcing them from scratch. The gold in a tonne of mobile phones is present at a concentration roughly 40 to 50 times higher than in gold ore, according to figures cited by the Ellen MacArthur Foundation. The same logic applies, to varying degrees, to the other materials we've covered here.
Our data shows that people consistently underestimate what their old phone is worth. A two-year-old mid-range Samsung or a previous-generation Pixel can still bring in £100 to £300 depending on condition - money that most people are effectively throwing away by leaving the device in a drawer.
Check what your phone is worth right now by getting a free quote on OnRecycle - it takes about 30 seconds, and you might be surprised. For more guides on getting the most from your old devices, browse our blog.
Published by The OnRecycle Team on 4th March 2026
