eufy SmartTrack Card E40 review

The eufy SmartTrack Card E40 is a cheaper alternative to the Pebblebee Card 5 for hiding a tracker in a bag. It is 0.07 in thick, so it fits a wallet slot, passport case or the inner pocket of a suitcase, and eufy describes it as bend-resistant, water-resistant and scratch resistant. It works with Apple Find My on iPhone and Google Find Hub on Android, so either phone can see a bag's location through the crowdsourced networks. Charging is simple if you own a phone charging pad: set the card on any standard wireless charger and an LED shows red while charging and blue when full. The weak points are endurance and volume. eufy rates a charge at up to 5 months, against up to 18 months for the Pebblebee card, and the alarm reaches up to 80 dB. It costs $34.99 from eufy's US store, which offers a 30-day money-back guarantee.

Who it is for

Travelers who want a slim card for a passport wallet or bag pocket and already own a wireless charger.

Price

$34.99.

$34.99 Qty
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Works with Apple Find My and Google Find Hub
• Charges on any standard wireless charger
• Up to 5 months of tracking per charge
• 0.07 in thick, bend-resistant and water-resistant
• Alarm up to 80 dB

Strengths and weaknesses

• Strength: Cheaper than the Pebblebee Card 5
• Strength: Charges on a phone's wireless pad
• Strength: 30-day money-back guarantee from the eufy store
• Weakness: Up to 5 months per charge is the shortest of the cards here
• Weakness: 80 dB alarm is quieter than the Chipolo tags
• Weakness: eufy does not publish a water resistance rating on the page

Key facts

• Network: Apple Find My and Google Find Hub
• Thickness: 0.07 in
• Battery: Wireless charging, up to 5 months
• Alarm: Up to 80 dB
• Returns: 30-day money-back guarantee

Where it ranks

eufy SmartTrack Card E40 is No. 8 in our Best Luggage Trackers verdict.