Eufy’s SmartTrack Card E40 finally hits stores

Eufy SmartTrack – After years of delays, Eufy’s SmartTrack Card E40—its first tracking card compatible with Google Find Hub—is finally available for $35. The slim card includes an 80-decibel alarm, supports wireless charging, and works with both Google’s Find Hub and Apple’s Fi

For years, people who waited on Eufy to bring a Google Find Hub–compatible tracking card into their pockets had plenty of reasons to keep checking. Now the SmartTrack Card E40 is finally for sale, and it comes with the kind of practical details you actually need when a wallet goes missing.

The SmartTrack Card E40 costs $35 and is available from Eufy’s online store. It’s designed to be thin—1.78mm—and it includes an 80-decibel alarm meant to help you locate lost items like a wallet.

Eufy built in wireless charging support as well. Even with that slim profile, the SmartTrack Card E40 uses a 140mAh battery that Eufy says can last for about five months on a single charge. The card can be recharged with any Qi wireless charger.

Connectivity is handled solely through Bluetooth. To access the card’s features, you’ll need to download the Eufy app.

Where the card really splits depends on which ecosystem you rely on. Tracking and alarm features work with Google Find Hub. Features that go beyond that—like locating your phone. silent mode. and Scan to Contact—are available through the Eufy app. If you use Apple’s Find My network. the card supports left-behind alerts via Find My. but Eufy says those are “coming soon to Android” in the Eufy app.

Eufy’s path to this release has been anything but smooth. The company originally said it would launch Bluetooth trackers for Google’s finding network in June 2024. when it was still called Google Find My Device. The launch window later shifted to late 2024, but no update arrived when that target passed. By January 2025, Eufy told Android Authority that the trackers weren’t canceled and were undergoing testing.

This January, Eufy said the SmartTrack Card E40 would go on sale in Q1 2026. Months passed with no updates—then the card appeared as a purchase option on Eufy’s website at $35.

The product also carried a notable change in the alarm pitch. In earlier claims, Eufy described a 100-decibel siren alarm. On the new product page, the alarm loudness is listed at 80 decibels.

In terms of physical competition, there’s a familiar benchmark in this category. Pebblebee’s Card 5 is slightly thinner at 1.74mm. Eufy’s SmartTrack Card E40 lands just behind that figure at 1.78mm.

The timing also matters because Eufy isn’t starting from scratch in card-form trackers. The SmartTrack Card E40 joins accessories from Pebblebee and Chipolo, which already offer card-sized Find Hub trackers for under $40. Still. Eufy’s position as a well-known Anker sub-brand may give its long-delayed entry extra pull for buyers who’ve been weighing which tracker to trust.

Behind the neat numbers—1.78mm. 80 decibels. a five-month battery—there’s a more human story: a promise made in mid-2024. pushed repeatedly. and only now finally delivered. After the long wait, the question for shoppers is no longer whether it would arrive. It’s whether Eufy can make its card feel worth the delay once it’s in your hands.

Eufy SmartTrack Card E40 Google Find Hub Find My Bluetooth tracker tracking card wireless charging Qi