The $50 rule: when selling an old electronic isn't worth the data risk

Most of the resale advice I write is about getting the most for your stuff. This one is the opposite: it's about when the right move is to not sell at all. Specifically, it's about old electronics: the drawer of dead phones, dusty tablets, and forgotten external hard drives that almost everyone has somewhere in the house. The temptation is to list them. They were expensive once. Surely $20 is better than nothing.

For most of those devices, $20 is not better than nothing. The rule I've landed on, after listing a lot of small electronics over the years, is roughly this: if a device with storage is worth less than about $50 used, recycle it instead of selling it. The math doesn't favor the sale once you account for the time to wipe it properly and the small but real chance that some of your data goes out the door with it.

Why $50 is the rough cutoff

The math, in plain English. Wiping a device the right way (not just tapping "factory reset" and trusting the screen) takes about thirty to forty-five minutes when you account for backing up anything you want to keep, signing out of every connected account, turning on encryption if it isn't already on, and verifying nothing's left behind. That's before you photograph it, list it, message a buyer, pack it, and ship it. Call it ninety minutes of total work for a small electronic.

On a $300 laptop, that's a reasonable trade. On a $25 tablet from 2017, you're working for $16 an hour with the privacy risk of someone recovering a fragment of your data on top. Below the $50 line, the spread is too tight to absorb the small chance of a mistake. Above the line, the wipe effort is worth doing right and the resale value justifies the time. It's a heuristic, not a law (you can adjust it for your own threshold) but the shape is real.

What's actually on these devices (more than you think)

The rule wouldn't matter if storage devices were just phones and laptops. The reason it's worth knowing is that the list is much longer. Tablets and e-readers have your purchase history and signed-in accounts. Old external hard drives and USB sticks have whatever you put on them years ago and never thought about again. Smart speakers have voice command logs. Fitness trackers have location and health data. Gaming consoles have saved logins and downloaded games tied to your accounts. Dash cams have GPS-tagged video of where you drive. Smart TVs have streaming credentials. Some smart appliances (fridges with screens, washing machines with apps, security cameras, video doorbells) quietly hold Wi-Fi credentials and behavioral data on a chip you've never seen.

The general test is simple: if the device ever connected to your Wi-Fi or asked you to log in, assume it has storage worth treating carefully. Most of the surprises in my own drawer were in this second category: not the phones I expected, but the small connected things I'd stopped thinking about.

A factory reset isn't a wipe

This is the part most people get wrong. "Factory reset" sounds like erasing a chalkboard. It usually isn't. On most devices, factory reset removes the OS-visible references to your data (the file system entries, the account links, the visible photos) but the underlying flash storage can still hold recoverable fragments unless something stronger happened first. On modern phones and laptops, that "something stronger" is almost always full-disk encryption, which is on by default and means the leftover bits are unreadable noise after the reset. On older devices, on cheap tablets, and on most external hard drives, encryption was never on, and the gap between "reset" and "actually erased" is real.

The standards body NIST publishes the reference document on this (NIST Special Publication 800-88) and the short version is: encrypted erase or a full overwrite is the threshold for "clear," and physical destruction is the threshold for "destroy." Factory reset alone falls below both. For something you're selling for $20, the right answer isn't to learn the difference and risk getting it slightly wrong. It's to skip the sale.

Where to take them instead, and what "secure recycling" actually means

Once you've decided not to sell, the next question is where the device should go. Three categories of options exist and they're all reasonable. Manufacturer take-back programs (most major device makers have one) will accept their own products and often pay a small trade-in credit or give you a prepaid shipping label. Certified e-waste recyclers operate independently and are the right call for devices not covered by a manufacturer program. Municipal e-waste collection events run a few times a year in most cities and counties.

The word that does the work in all three is "certified." The two certifications worth recognizing are R2 (Responsible Recycling) and e-Stewards. Both involve a third party auditing how the recycler handles data-bearing devices: not just whether the metal gets recovered, but whether the storage is actually destroyed and the chain of custody is documented. A drop-off bin at a random storefront usually isn't certified. The recycler's website will say if they are.

The point of the rule isn't to be paranoid; most people who sell their old phone will be fine, especially if it's a recent device with encryption on. The point is that for the cheapest end of the market, the math doesn't pencil out. The time you'd spend wiping it properly is worth more than the sale, and the residual risk has no upside. Below $50, recycle. Above $50, wipe it right and list it. The drawer empties out either way.