The conclusion The one that stops you losing the bag rather than helping you find it. Put them only on things that always travel with you.
A tracker is mostly for finding what is already lost. This one is
mainly bought to stop it happening.
Left-behind alerts
Your phone notices it has walked away from the tag and tells you — as you
leave the café, not an hour later. It is the feature that prevents the loss
instead of repairing it, and it is worth more than any amount of locating ability.
eufy states the alerts are free. Several makers charge for the equivalent, so
it is worth checking on anything you compare this against.
How to keep the feature working
Only tag things that should always be with you: a work bag, a laptop case, a
set of keys. Put one on a bicycle left outside a shop and the alerts fire every
time, the household mutes them, and the feature is gone.
That is a usage decision, and it decides whether the purchase was worth
anything.
The double tap
Rings your phone even on silent. As with the Chipolo in this hub, a tag that
finds the phone is used far more often than one that finds the keys.
The standard limits
Apple Find My, so check the platform. And a tracker finds mislaid items, not
stolen ones.
Who it suits
Anybody who leaves things behind rather than loses them outright.
Availability
On sale at $39 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on September 2, 2026. The live price is at the top of the page.
What reassures, and what does not
Strengths
Left-behind alerts, stated as free — the feature that prevents the loss rather than fixing it
Double-tap rings your phone even in silent mode
Four per pack
From a maker with an established security product line
Compromises
Apple Find My — check platform before buying for an Android household
Left-behind alerts need the eufy app running as well as Find My
Alerts of this kind are prone to false positives and get muted
Same theft limitations as every tracker
Specifications
Network
Apple Find My
Reverse finding
Double-tap rings your phone, including on silent
Alerts
Left-behind warnings through the eufy Security app, stated free
Contents
4 tags
Amazon reference
B0BN86R2HC
EAN
0194644118051
The questions we are asked
What is a left-behind alert?
Your phone tells you when it has moved away from the tag — you have walked out of the café without the bag. It is the feature that prevents the loss rather than helping afterwards, and the main reason to choose this tracker.
Why is "free" worth mentioning?
Because several makers put separation alerts behind a subscription or a premium tier. eufy states them as included. Over the life of four tags that is a real difference, and it is worth checking on any tracker you consider.
Do these alerts become annoying?
They can. A tag on a bicycle left outside a shop will alert every time, and a household that mutes the alerts has lost the feature. Put them on things that should always travel with you and not on things that stay put.
Our score
8.4/ 10
The one that stops you losing the bag rather than helping you find it. Put them only on things that always travel with you.
What this one costs among Bluetooth trackers
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on September 2, 2026.
The buyer this one serves, among security devices
Someone who leaves things behind rather than loses them — a bag in a café, a coat on a chair.
Amazon reports what buyers took in the month before this page was last checked: at least 500.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Sources
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Up to 500 days · IP67 · compass view · NFC lost mode · Samsung Find network
Samsung's tracker for the Galaxy Find network: up to 500 days of battery, IP67 dust and water protection, a compass view for the last few meters, and an NFC lost mode a finder can tap.
Best for: A household on Samsung phones, in a country where Galaxy devices are common.