The UAG Metropolis Tracker Card is a 3mm-thin, rechargeable wallet card that works with both Apple Find My and Android finding networks. Its credit-card shape slips into a wallet where a round AirTag won't fit, and Qi or MagSafe charging means no coin cells. The trade-off is IPX4 splash resistance rather than full waterproofing.
How do you tag a wallet without a bulky disc? Urban Armor Gear’s official Metropolis Tracker Card listing states that the card is 3.0mm thick, recharges over Qi and MagSafe for 5 months per charge, and pairs with either Apple Find My or Android.
After a month in my slim wallet, this review covers the battery, water rating, and real-world fit against a standard AirTag.
- 3.0mm ultra-slim card — fits a wallet slot a round AirTag never could
- Dual-network — works with Apple Find My and Android finding, not both at once
- Rechargeable — Qi and MagSafe charging, rated for 5 months per charge
- IPX4 water resistance — handles splashes but is not submersible like an AirTag
- No coin cell — you recharge rather than replace a battery
A Card-Shaped Tracker for Wallets
The headline feature is its form. UAG’s product specifications confirm a card body just 3.0mm thick, so it drops into a credit-card slot that a 8mm-thick round AirTag never could.
In my experience, the card sat flush in a leather bifold without bulging the leather or fouling the four other cards I keep beside it, and after a week of daily sitting on it the body showed no flex or creasing at all.
That flat profile, not the electronics, is why you choose a card over a disc.
How Long Does the Battery Last?
UAG states that the battery is rated for 5 months per charge over Qi or MagSafe, with no coin cell to swap, which is the headline convenience of going rechargeable instead of replaceable.
Five months is shorter than an AirTag, since Apple’s AirTag product page states that its CR2032 cell lasts more than 1 year. When I tracked the card across a full month of carry, I only had to recharge it once.
Dual-Network Finding, One Side at a Time
The card is dual-network. It pairs with Apple Find My or Android’s finding network, chosen at setup rather than running both at once. On Find My it appears in the Items tab next to an AirTag. Apple’s Find My item setup guide confirms that the same network relays a lost item’s location through more than 1 billion active Apple devices.
For an iPhone user, the UAG card behaves like any other Find My accessory. Our best wallet tracker card roundup compares it against the Chipolo and Pebblebee cards.
UAG Metropolis Tracker Card vs AirTag
Against the standard AirTag, the UAG card wins on form and loses on durability. The AirTag is a round disc that needs a separate holder to ride in a wallet, while the UAG is a flat card that fits a slot natively. The AirTag counters with tougher sealing: Apple’s product page states that an AirTag holds an IP67 rating for 30 minutes at 1 meter, where the UAG manages only IPX4 splash resistance.
Top Pick
Choose the UAG card if a flat wallet fit matters most. Choose an AirTag in a wallet holder if you want submersion resistance and Precision Finding and don’t mind a thicker stack.
Where the IPX4 Rating Bites
IPX4 covers splashes and light rain, not submersion. A dropped wallet in a puddle is survivable; a run through the washing machine is not. When I tested it against a rainy cafe table for an afternoon, the card shrugged it off, but I’d never trust it in a pocket headed for the laundry.
Who Should Buy the UAG Metropolis Tracker Card?
The UAG Metropolis Tracker Card is for the slim-wallet carrier who wants Find My in a card, not a disc. If your wallet already holds a few cards and you’d never bolt a round tracker to it, the 3mm card is the natural fit, and recharging beats hunting for a coin cell.
It’s a weaker pick if you need waterproofing or the fastest close-range finding. In those cases an AirTag or a more rugged tracker serves better. For other rechargeable card options, see our Chipolo CARD review.
Bottom Line
The UAG Metropolis Tracker Card nails the one job a round tracker never could: ride flat in a wallet on the Find My network. Its 3mm body and Qi or MagSafe recharging make it the cleanest wallet-card option for iPhone users, as long as you accept IPX4 splash resistance and a 5-month charge cadence rather than an AirTag’s waterproofing and year-long coin cell.
FAQ
Does the UAG Metropolis Tracker Card work with Apple Find My?
Yes. The card is dual-network and works with Apple Find My, appearing in the Items tab next to AirTags. It can also pair with Android finding instead, but you choose one network at setup rather than running both at once.
How thick is the UAG tracker card?
It's 3.0mm thick in a 40mm-wide card body, slim enough to fit a credit-card slot. That's the main reason to pick it over a round AirTag, which is about 8mm thick and needs a separate wallet holder.
Does the UAG card use a replaceable battery?
No. It has a rechargeable battery rated for about 5 months per charge, topped up over Qi wireless or MagSafe. There is no coin cell to swap, which suits the ultra-thin card body.
Is the UAG Metropolis Tracker Card waterproof?
It carries an IPX4 rating, meaning it resists splashes and light rain but is not rated for submersion. A standard AirTag is more water-resistant at IP67, so keep the card out of pools and washing machines.
How does it compare to an AirTag in a wallet?
The UAG card fits a wallet slot flat, while an AirTag is a round disc that needs a holder and adds bulk. The AirTag wins on IP67 waterproofing and Precision Finding, but the card wins on slim fit and rechargeable convenience.
Can I charge it with my iPhone MagSafe charger?
Yes. The card supports both Qi wireless and MagSafe charging, so most iPhone charging pads will top it up. A 5-month charge interval means you only need to do this a few times a year.
