Anker reveals new upgraded eufy SmartTrack Card E40

The eufy SmartTrack Card E40 has been announced at CES 2026. This new compact tracking accessory builds on the older SmartTrack Card E30 (curr. $ 16.88 at Amazon), with various upgrades.

Like its predecessor, the eufy SmartTrack Card E40 is designed to fit in your wallet, passport holder or luggage. It can be used to find these items if they get lost in several ways. Firstly, you can trigger the built-in 100 dB alarm from the accompanying smartphone app, which could help you to find the item if it is close by. Secondly, it is compatible with both Apple Find My and Android Find Hub; the E30 could only work with Apple Find My. These systems should allow you to track your item anywhere in the world.

Eufy’s SmartTrack Card E40 is thinner than the E30, measuring just 1.7 mm (~0.067 inches) thick. It recharges wirelessly, with a single charge providing up to five months of battery life. It connects to your smartphone via Bluetooth 5.1 and is also expected to offer a phone-finding functionality.

Anker will release the eufy SmartTrack Card E40 in the US at some point in Q1 2026, though an exact date before the end of March has yet to be confirmed. This product is set to retail for $34.99; for context, the eufy SmartTrack Card E30 launched at $29.99 in early 2023.