Five Signs It’s Time to Sell Your Backup Phone

Tons of phones just sit there in junk drawers while their owners worry about money being tight, and the electronic waste that keeps piling up. That spare phone you have could actually put some cash in your pocket while you clean up your space and help the environment. Over 5.3 billion phones got thrown away worldwide in 2023 alone  – and these are phones that people forgot about. That’s a lot of money that people are leaving on the table.

Let’s say that you turned on that backup phone recently. It’s probably been way longer than you think. If you haven’t used it in months, your spare phone might actually be worth more to you sold than forgotten in the back of your dresser somewhere. That unused phone has probably become more of a burden than an actual backup.

Sure – your old phone still works just fine. But while it sits there unused, someone else out there can’t get their hands on affordable tech, and you’re missing out on some cash. You also have to remember – your old phone isn’t getting more valuable as time goes on. Phones depreciate in value over time. It could be worth a fraction of what it’s worth today when you find it at the bottom of your drawer again in a couple of years.

These next five signs are going to help you figure out if your backup phone would be better off with someone who’s actually going to use it every day.

Do You Really Need a Backup Phone?

When was the last time you actually used that backup phone? If you have to stop and think about it for a while, that probably tells you all you need to know. Most people tell themselves they need a spare phone just in case something goes wrong. But then it just sits there in a drawer for months and months without anyone ever touching it. The fact that it never gets used tells you everything.

Say you look back over the past six months or so. Have you needed to use your backup phone even one single time? If the answer is no, then you’re pretty much just paying money to store something that’s about as useful as a paperweight. The newer flagship phones like the iPhone 15 break down less than 3 percent of the time, which means your main phone is way more reliable than backup phones used to be ten years ago.

These backup phones actually create more problems than they solve. Your spare phone needs charging every few weeks and software updates to keep it working properly. You also end up either paying for an extra data plan every month or you’re stuck with an old phone that won’t work right when you actually need it. Those monthly costs keep adding up while the phone just sits there doing nothing.

Here’s the real question you should be asking yourself – do you keep that backup phone because you actually need it, or just because having it there makes you feel better? Plenty of people will admit they feel worried or unprepared without a spare phone somewhere nearby. But when you talk to them about it, they realize they’ve never actually needed to use it when something went wrong.

You can get the same feeling of security from cloud backups and extended warranties without needing to keep extra phones around. Your photos, contacts and everything that matters are already much safer stored in the cloud than they would be sitting on a second phone. Plus, the newer phones have satellite messaging features that let you send messages even when every cell tower is down. These features bypass the cellular network completely.

If your backup phone has been sitting unused for six months or more, it’s time to be honest with yourself about why you still have it. You’re probably keeping it around more for emotional reasons than because you actually need it.

How Fast Phone Values Actually Drop

Your backup phone loses value faster than you might think. Used phone prices usually drop pretty fast every time a new model comes out, and if you look at the actual numbers, you can see why this matters. The big flagship models usually lose about 22 percent of their resale value within 12 months after a newer version shows up. Most people don’t actually expect this to happen.

Let me put it this way. If your backup phone is worth $400 now, it could drop to $312 in just one year. That means you’d lose $88 just because newer models hit the market. The drop tends to happen very fast too – usually within a few weeks after a big announcement from the phone makers.

Think back to what happened when the iPhone 15 came out. The older models immediately started selling for less on all of the resale websites and apps. You see the same thing happen every single time there’s a big release. Your backup phone goes through the exact same price drops. Apple and Samsung usually announce these release dates a few months ahead of time.

Here’s something easy you can try. Work out how much money you’d lose if you waited six more months to sell your phone. Take what your phone sells for now and knock off about 10 to 15 percent.

The value drops the most once those newer models come out. Your phone suddenly has to compete with phones that have better cameras and run faster. When buyers have lots of options to choose from, they’ll usually go for the newer releases. With every month that goes by, there are fewer people who want to buy your particular model.

The market makes this problem even worse. Phone carriers run all kinds of deals to get people to buy newer models, which means more used phones end up for sale. Trade-in programs make it easy to swap your phone, though they usually give you less money than if you sold it yourself. The longer you hold onto your phone, the more other people you have to compete with who are trying to sell the same model. More phones end up for sale while the number of buyers stays about the same.

The worst part about this is how suddenly the prices can drop. You might keep your backup phone around to get one more software update. But then the next model gets announced and you’ll see prices drop immediately.

Check If Your Phone Still Has Support

Your backup phone could be more vulnerable than you think if it’s stuck on an old operating system. Most phone manufacturers only give updates for a few years before they move on to newer models. When that support window closes, you lose access to security patches you need and new features. Most people never realize this until something breaks.

Google’s Pixel 3 is a perfect example of this. The company stopped all updates in 2022, which left users with phones that couldn’t defend against newer threats. One day you have a safe device and the next day you’re completely on your own. When manufacturers discontinue support, it causes a security problem that only gets worse over time. Hackers create new attacks faster than most of us replace our phones. Your personal data sits exposed to threats experts found months ago.

IT managers handle this headache constantly when they try to secure older devices across their organizations. They’ll tell you it’s nearly impossible to keep solid security standards when the manufacturer has already moved on. Your backup phone runs into the same challenge on a smaller scale. You can check your phone’s update status pretty easily. Look up your model online to see when the manufacturer plans to end support. If that date has already passed, you’re in danger.

Once you do this research, you’ll have a solid idea of when to replace your phone. Manufacturers announce end-of-life dates years in advance. Your backup phone needs the same retirement schedule as your primary device. Banking apps and security software usually drop support for older operating systems without much warning. Your backup phone becomes useless for important tasks when these apps refuse to work. You never want to find out your banking app won’t open during an emergency.

Modern features like 5G and eSIM support also matter more than they used to. If you travel frequently and need a reliable backup device, an older phone without these capabilities will let you down when you need it most. What’s more, network compatibility can make or break whether your backup actually works when you need it. Older devices usually don’t have radio bands that newer carriers need.

How Your Battery Degrades Over Time

That backup phone in your drawer has a problem that most people don’t know about. Lithium-ion batteries break down naturally over time, and this happens whether you use the device or not. Most people only find this out after it’s too late and the phone won’t work when they need it.

Research from Battery University shows that batteries lose about 20 percent of their capacity each year when you store them at full charge. Your phone might look perfect on the outside. But the battery inside could be getting weaker and weaker. What you thought was a reliable backup turns into something that won’t help you when you need it most. The battery keeps breaking down whether you check on the device every month or forget about it for a year. This happens because the chemical reactions inside the battery keep going even when the phone is sitting there in a drawer. Those reactions don’t stop just because you’re not using the phone.

You can test this out yourself pretty easily. If you have an iPhone, go to Settings and then find Battery Health to see what the actual capacity percentage is. Android users can download apps that will show them similar battery statistics. You can also try a simple 24-hour test – just charge the phone all the way, then let it sit overnight and check how much power it lost by morning.

People who refurbish phones see this problem all of the time. They’ll get devices that look like they just came out of the box. But when they test the batteries, they’re below 80 percent capacity. At that point, the phone gets much harder to sell because buyers expect the battery to last a decent amount of time. Your backup phone could lose hundreds of dollars in value because of this battery problem that you can’t even see. Buyers walk away when they find out the battery needs to be replaced right away. People don’t want to buy a phone and then pay for expensive repairs too.

You should look for warning signs like a battery case that looks swollen or the phone shutting down suddenly when the charge drops below 30 percent. These problems create safety risks – the phone can get too hot and chemicals might leak out. Once a battery needs replacing, your phone is worth much less because most buyers don’t want to handle repairs right after buying something.

Get the Best Price for Your Phone

Before you list your backup phone for sale, there are some steps you need to take to protect yourself and get the best price you can. First, do a full factory reset. But don’t stop there – most people think that takes care of everything but it doesn’t. You should remove all your accounts manually first and then wipe the device clean properly following data erasure standards like the ones NIST puts out.

Pull out your SIM card and any memory cards you have tucked away inside the phone. These small cards hold more personal information than you’d expect. If you don’t take them out, your contacts and messages could end up in the wrong hands. You’ll also want to take quality photos of your phone from every angle before you pack it up. Buyers want to see exactly what they’re buying and clear photos will help you get more money for it.

While packing everything up, look around for those original accessories. The charging cable, earbuds and even the box can add real value to what you’re selling. People pay more for full packages and having everything shows that you took care of the phone. When accessories are missing it makes buyers think you didn’t take care of the phone. But when you have everything that came with it, they assume you kept the phone in great shape the whole time you owned it.

Your backup phone might not be worth much though when you try to sell it. Older models or phones with lots of wear and tear usually bring in less money than you’d hope. That phone sitting in your drawer might only get you $40 instead of the $100 you were hoping for. You might want to consider donating it to a local shelter or school program instead. Plenty of these places fix up old devices and give them to people who can’t afford new phones.

Big phone carriers also have recycling programs that handle old devices properly. Apple Trade-In and programs like it will take phones no matter what shape they’re in. Even if your screen is cracked, you still have options. They’ll either fix them up or take them apart for parts and materials. You won’t get any money for it but you’ll keep electronic waste out of landfills.

Trade Your Old Phone for Cash Today

Say you’ve been keeping an old backup phone around – it’s not as smart as it used to be. The smartphone market moves very fast now and resale values are dropping fast because of economic uncertainty and trade tensions. That device in your drawer could be losing money every month you wait to sell it. While it sits there becoming older, newer models from Samsung and Apple are catching buyers’ attention, which makes older devices less appealing to buyers over time.

Your backup phone loses value much faster than you might think. Today’s market conditions mean that older devices lose a big chunk of their value within just a few months instead of years like they used to. Every day you hold onto that phone, you’re losing money that could be in your pocket while newer models keep coming out and catching buyers’ attention.

The small growth we’re seeing in the smartphone market in 2025 actually means that people are being more selective about what they buy and how much they’re willing to pay for older technology. Buyers are very picky now. With new devices possibly getting more expensive soon and new government laws possibly coming, timing is everything for selling a backup phone.

At ecoATM, we make it easy to turn that old phone into instant cash without any of the usual trouble. You don’t have to worry about shipping hassles or wait around for your money. With over 6,000 kiosks across the country, you can get your phone checked right away and walk out with cash the same day, or have the money sent directly to your account.