Bluetooth trackers went mainstream in India once Google's Find My Device network started working properly on Android. The technology is genuinely useful and also widely misunderstood — most disappointment comes from expecting GPS.
How a smart tag actually finds things
A tag has no GPS and no SIM. It broadcasts a low-energy Bluetooth signal. Two things can pick that up:
- Your own phone, within about 20-70 metres. This is what makes the tag ring when you lose your keys inside the house.
- Any other phone on the same network that walks past it. That phone anonymously reports the location to the network, which shows it to you.
So a tag's usefulness outdoors depends entirely on how many people around it carry a compatible phone. In an Indian city, that is a lot of people. On a remote highway, almost none.
What it is good at
- Keys, wallet and bag inside the house — reliable, near-instant
- Checked luggage — the tag reports when someone with a phone passes near the baggage hall
- Knowing whether you left something at the office or at home
- A bike or scooter parked in a crowded area
What it is not good at
- Live tracking. You get last-seen locations, not a moving dot.
- Recovering something a thief has taken. Modern tags deliberately alert nearby strangers that an unknown tag is travelling with them, precisely to prevent stalking. That protection also warns a thief.
- Tracking a pet in open country. No passers-by, no network, no location.
- Tracking a child. Use a device built for it.
Specs that matter when choosing
Network compatibility. An Android-network tag is the right choice for an Android household in India; Apple's network is separate. Check which one before buying, because a tag on the wrong network loses most of its range advantage.
Battery. Most tags use a replaceable CR2032 coin cell lasting about a year. Replaceable is better than sealed — a sealed tag is disposable.
Loudness. Around 80dB is enough to hear through a sofa cushion. Quieter tags defeat the main indoor use case.
Water resistance. IP67 if it is going on a keyring that lives in a pocket.
The Salpido SF-G910 smart tag at Rs 649 covers this specification set.
Setting one up sensibly
Attach it to the thing you lose, not the thing you value. People put tags on expensive laptops they never misplace and lose their keys weekly. Put it where the failure actually happens.
Register it under one account per household member rather than sharing one, so the alerts reach the right phone.
Common questions
Does a smart tag need internet? The tag does not. Your phone does, to show you the location.
How far does it work? Direct Bluetooth range is 20-70m depending on walls. Network range is effectively unlimited but depends on other phones being nearby.
Can someone track me with a tag? Both major networks now alert you if an unknown tag travels with you for a while.
Will it work in flight baggage? Bluetooth trackers are permitted in checked baggage on Indian carriers. They report location when the bag reaches a populated area.
See the smart tag range and other lifestyle accessories.