Most commonly lost items: the 2026 index in full
The most commonly lost items are a remarkably stable list. Across a decade of ride-hailing data, a UK schools survey and the categories police will still take in, the same handful of objects keeps appearing: a phone, a wallet, a set of keys, a coat. This is what the three most recent data sets say, what each one actually measures, and where the numbers agree.
What the June 2026 index recorded
According to Uber, whose tenth annual Lost & Found Index was published on 2 June 2026, the items left behind in vehicles ranked, in order: phone, wallet, luggage, keys, headphones, clothing, passport, glasses, jewellery and laptop.
Two findings in that release are more useful than the ranking itself. The first is timing: Uber reports that the most common window for items being left behind is between 9pm and midnight, which the company links to peak social activity across the ten years it has tracked. The second is seasonality. Sunday was the most forgetful day of the week, and 17 July recorded the highest single-day count.
It is worth being precise about the limits of that data set. The index covers Uber's US cities, and its city rankings, New York first, then Miami, Chicago and San Francisco, say nothing directly about Britain. What travels is the shape of the list, not the geography: the objects people carry loose, use last and put down while distracted.
How the UK data compares
Two British sources measure different populations and produce a recognisably different top of the list.
| Data set | Date | What it measures | Leading items |
|---|---|---|---|
| Uber Lost & Found Index | 2 June 2026 | Items left in vehicles, US | Phone, wallet, luggage, keys |
| Label Planet primary schools survey | February 2026 | Unclaimed items in UK primary schools | Jumpers 90%, coats 41%, water bottles 24% |
| Ask the Police found property guidance | accessed 2026 | What UK forces will still accept | Devices holding personal data, cash, high-value goods |
The schools survey, carried out in February 2026 and published in May, found that 90% of schools put jumpers, cardigans and sweatshirts among their top three unclaimed items, with coats at 41% and water bottles the most common non-clothing item at 24%. That is a population of children in a fixed building, so the list is dominated by things taken off rather than things put down.
The police data is not a survey at all, but it reveals the same hierarchy by omission. As Ask the Police sets out, forces in England and Wales now accept only certain categories of found property, items holding personal data such as phones, tablets and laptops, significant sums of cash, high-value goods and illicit items. Ordinary lost property, clothing and umbrellas included, is no longer taken in. The list of what the state still considers worth logging is, in effect, a list of what hurts most to lose.
For the UK household ranking specifically, which objects adults report mislaying at home, and how long they spend hunting, we covered the January 2026 research separately in the real time spent looking for lost items.
What the three data sets agree on
Three observations survive all three sources.
Loss clusters around transitions. Getting out of a car, leaving a classroom, walking out of a pub at closing time. The Uber timing data is the cleanest expression of it: the peak is not when people are busiest but when they are moving between places, late, and thinking about something else.
The expensive items are also the frequent ones. Phones and wallets top the ride-hailing list despite being the objects people are most careful with, because they are handled most often.
Keys sit fourth and cost the most to resolve. A phone can be locked remotely, a wallet's cards cancelled in minutes. Keys cannot be cancelled, and replacing a lock or a car fob is the single most expensive outcome on the list, a point we set out with 2026 trade prices in the locksmith bill versus a key finder.
How Air Tracker helps
Nothing on any of these lists is recovered by data. What changes the outcome is whether the object can announce itself.
Air Tracker attaches to the two categories that appear on every ranking above: a keyring, via the ring supplied in the box, and a bag or coat pocket. Once it is paired to the Find My app on an iPhone, tapping Play Sound makes it chime at 80–100 dB anywhere within about 60 metres, through a coat, a car seat or a closed door. Past that range, passing Apple devices relay its last known position back to the map, which is what turns "somewhere in the city" into an address to ring.
Given the timing finding above, the feature that earns its keep is the left-behind alert. Your iPhone tells you at the moment you walk away from the tagged item rather than when you next reach for it, which is precisely the gap those 9pm-to-midnight losses fall into. Mark a tag as lost and a finder can tap it for your contact details without ever seeing where you live, since the location data is encrypted end to end.
The constraints are simple and worth knowing before you order: an iPhone or iPad running iOS 14.5 at minimum, nothing whatsoever for Android, and no Ultra Wideband arrow, sound and a map instead. Each tag is IP67 rated, weighs about ten grams, and takes a replaceable coin cell that lasts a couple of years.
A box holds two, which conveniently matches the top of every list here. put one on the keys and one in the bag.
Sources
Written by Item Finder Updated
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