Key Features
Dual OS Compatibility
The Eufy SmartTrack Card E40 is the first Eufy loss prevention tracker to support both “Apple Find My” for iOS devices and “Find Hub” for Android devices. This eliminates the need to purchase a new tracker when changing smartphone OS, offering long-term usability.
Ultra-Slim Design
Measuring approximately 1.7mm thin, the Eufy SmartTrack Card E40 is about 30% slimmer than the previous “Eufy SmartTrack Card” model. Its sleek profile allows it to fit comfortably in wallets, card cases, passport holders, and mini bags without adding bulk.
Wireless Charging
The device supports wireless charging, allowing users to simply place it on a compatible wireless charging pad for easy recharging. A single charge provides up to 5 months of battery life, reducing the frequency of recharges.

80dB Loud Alarm for Easy Location
In case of loss, users can activate an alarm via the Eufy app, causing the card to emit a loud 80dB sound to help locate it. The app also allows for forgotten item notifications and centralized management of multiple cards.
Privacy-Conscious Design
Activating “Lost Mode” in the Eufy app enables the QR code on the back of the card, allowing finders to contact the owner while maintaining privacy, as contact information is only shared when the mode is active.
Product Specifications
| Feature | Specification |
|---|---|
| Size | Approx. 85×54×1.7mm |
| Weight | Approx. 12.0g |
| Alarm Volume | Max 80dB |
| Charging Method | Wireless charging |
| Bluetooth Range | Max 80m (Varies depending on environment/obstacles) |
| Battery Life | Up to 5 months per charge (Varies by usage environment) |
| Package Contents | Eufy SmartTrack Card E40, Quick Start Guide |
| Important Notes | – Use only for personal belongings. Acquiring location info of others without consent is prohibited by Japanese law. – Not recommended for monitoring children or pets. |
Pricing and Availability
The Eufy SmartTrack Card E40 is available for 5,990 yen (tax included). It can be purchased from:
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Anker Japan Official Online Store (Special page for Eufy SmartTrack series)
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Anker Store (Directly managed stores)
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Amazon.co.jp (Product page)
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Rakuten (Product page)
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Select electronics retailers
For more product details, please visit:
About Anker Japan
Anker Japan operates with the mission of “Innovation, Faster.”, aiming to guide people’s lives towards an unseen future. The company strives to develop and deliver innovative hardware, including charging, audio, and smart home products, with high quality and speed. Through its products, services, and corporate activities, Anker Japan aims to create a richer world.
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Official Website: https://www.ankerjapan.com
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Corporate Website: https://corp.ankerjapan.com/

