Samsung has unveiled the Galaxy SmartTag3, its latest Bluetooth tracker for keeping tabs on everything from keys and luggage to bikes and pets. And while the new tracker is noticeably smaller and lighter than the previous generation, its biggest upgrade might be the one that has nothing to do with the hardware: SmartTag3 now works across Android and iOS.

That makes this the first Galaxy SmartTag designed for cross-platform use. Through Samsung’s SmartThings Find service, users can check and share a SmartTag3’s location and use Search Nearby from supported Galaxy and iOS devices. Samsung says the feature could be particularly useful in families or groups where people use different phones—for example, when someone with an iPhone borrows a suitcase tagged with a SmartTag3.

There is a catch, though. The iPhone experience doesn’t include every SmartTag3 feature. Samsung says Compass View, Ring Phone and Left Behind Alert aren’t available on iOS. So while SmartTag3 is no longer locked to Samsung’s ecosystem, Galaxy phones still get the more complete experience.

Smaller body, longer battery life

Samsung has reduced the SmartTag3’s volume by approximately 35% compared with the previous generation and cut its weight by 33%. The more compact design should make it less cumbersome to attach to smaller bags, luggage, keys or a pet collar.

The redesign also gives the tracker a rounded shape with an aluminum-finished button. Samsung is selling separate accessories, including a Silicone Case with a keyring and a Loop Case, so you’ll have to account for an accessory if you want a traditional way to attach the tracker to your keys or bag.

Battery life gets a useful bump, too. Samsung rates the SmartTag3 for up to 550 days of standard use, or as much as 790 days with Power Saving Mode enabled. It uses a replaceable CR2032 battery, although Samsung notes that actual battery life will vary depending on usage and environmental conditions.

Finding your stuff from farther away

The SmartTag3 also gets an upgraded approach to directional finding. Bluetooth 6.0 Channel Sounding allows Compass View to provide distance and directional guidance from up to 60 meters away under suitable conditions, which Samsung says is roughly three times farther than the previous generation.

Once you’re closer, compatible Galaxy phones can use ultra-wideband (UWB) to provide more precise locating. The catch is that the extended Bluetooth Channel Sounding experience currently requires specific Galaxy hardware, including the Galaxy Z Fold8 Ultra, Galaxy Z Fold8, Galaxy S26 Ultra and Galaxy S26 Plus.

When the tracker is outside your phone’s direct connection range, Samsung’s Galaxy Find Network can help locate it through participating Galaxy devices nearby. Samsung says more than 900 million Galaxy devices worldwide can act as finding nodes for the network, allowing a SmartTag3’s location to be updated even when it isn’t connected directly to its owner’s phone.

Samsung is also adding faster location updates through the network, which should help when something such as luggage suddenly disappears from your phone’s Bluetooth range.

SmartTag3 can now alert you before you start looking

Samsung is expanding the tracker beyond the traditional “where the hell did I leave that?” use case.

A new Place Notification feature lets users define an area and receive an alert when a tagged item enters or leaves it. That could be useful for things such as a bike leaving its usual parking area or a pet wandering outside a defined location.

There’s also Location History, which lets users review where a SmartTag3 has been, and Movement Detection Alert, which can notify them when movement is detected. Samsung says location history is stored for up to seven days.

The tracker retains an IP67 rating for dust and water resistance and supports NFC-powered Lost Mode. If somebody finds a lost SmartTag3, they can scan it with a compatible NFC-equipped device to see the contact information or message registered by its owner.

SmartTag3 can also be used as a button for SmartThings routines, while Left Behind Alert can warn users when their phone loses connection with a tagged item. That last feature, however, isn’t available on iOS.

Galaxy SmartTag3 price and availability

Samsung says the Galaxy SmartTag3 will arrive in the US by early November 2026. It will cost $29.99 for a single tracker or $99.99 for a four-pack, with White and Black color options.

The result is a much more flexible SmartTag than Samsung has offered before. The smaller design and longer battery life are welcome upgrades, but adding iPhone support changes who can actually use one. Samsung is no longer asking everyone in the household to buy into the Galaxy ecosystem just to keep track of the same suitcase, bike or set of keys.