Here’s a small economic law being violated in your pocket: depreciation. A used phone is supposed to lose about 1% of its value every week — buy it, blink, and it’s worth half in a year. But this year, used-phone prices are going up. The average resale price of the iPhone 15 Pro Max rose from $530 in January to $560 in May. When was the last time your old phone appreciated?
The answer is upstream, and regular readers will recognize it: the memory-chip crisis. The same shortage hammering Sandisk and Samsung in the markets pages has made new phones more expensive, which pushes buyers to the used market, which lifts prices there. The AI build-out is bidding for the same memory chips your phone needs. Your teenager’s hand-me-down and Nvidia’s data centers are, economically speaking, in the same checkout line.
The four ways to get burned
The Journal’s Nicole Nguyen catalogued the risks, and they’re worth ranking. First, activation locks — a phone still tied to its previous owner’s account is a paperweight with a camera. Second, Frankenstein repairs: non-genuine screens, ports and batteries. A security executive made the point that a bad battery is a safety issue, not just a quality one — you don’t want the discount that catches fire. Third, dead-end models: a phone too old to receive security patches “belongs in the recycling bin.” Recent flagships from Apple (AAPL), Google (GOOGL) and Samsung get up to seven years of updates; check any model’s expiration at endoflife.date. Fourth — rare but documented — preloaded spyware: one jury-duty scam victim bought a refurbished Galaxy S24 Ultra online that security experts say came loaded with software watching her texts, searches and location.
The buyer’s checklist
The defenses are boring and effective, which is our favorite kind. Buy certified refurbished from the manufacturer when you can — genuine parts, current software, a one-year warranty. Carrier-preowned programs are the next tier, with real processing and data-wiping behind them. On marketplaces, pick the highest grade — Amazon’s “Renewed Premium” carries a 365-day return window, which is the seller telling you they believe in the device. Whatever you buy, factory-reset it yourself on day one, set it up as new, and spend the first hour confirming the battery health and the account locks are clear. An hour of paranoia beats a year of someone else’s problems.
The planning point is the one hiding in the price chart. Phones are a line item families budget on autopilot — $800 here, $1,100 there, upgrade cycle rolling forever. When the used market appreciates, the smart play flips: your current phone is worth more as a trade-in than it’s ever been, the used replacement costs more than it should, and the gap between “new flagship” and “certified two-year-old flagship” is the widest free money in the household budget. Keep the phone a year longer, bank the difference into the actual emergency fund we wrote about one story up, and let the memory-chip crisis be someone else’s urgency. Inflation is a forecast on the wall too — and this is one of the rare corners where you can check the roof for forty dollars.