Wallet tracker cards now span Apple Find My, Google Find Hub, and the Life360 Tile network. Six of the seven cards here are rechargeable, and the thinnest measures 1.7mm.
The comparison focuses on manufacturer-listed thickness, battery design, water resistance, and network compatibility. Prices are intentionally treated as changeable.
- Pebblebee Card 5 is one of the thinnest dual-network options here — it’s 1.74mm by the official specification and uses Qi wireless charging
- UGREEN FineTrack Slim is the budget iPhone choice — it’s 1.7mm thin and uses a supplied magnetic charging cable rather than Qi
- Six of seven cards are rechargeable — five use Qi wireless charging, UGREEN uses magnetic charging, and Tile Slim has a sealed battery
- Card-slot fit depends on the wallet — every model is card-shaped, but a packed or rigid wallet will make the difference between 1.7mm and 2.5mm more noticeable
- None of the seven cards includes UWB Precision Finding — choose an AirTag wallet if directional finding matters more than a slim card profile
Quick Pick: Which Wallet Tracker Card Should You Buy?
If you already know your phone ecosystem and charging preference, you can narrow the field before reading seven full reviews. The biggest decision is not “best card overall” — it’s whether your wallet owner uses iPhone, Android, or might switch platforms later.
| Your priority | Best pick | Why it fits | Read next |
|---|---|---|---|
| Best card for most iPhone or Android users | Pebblebee Card 5 | 1.8mm thin, Qi rechargeable, and works with Find My or Find Hub at setup. | Pebblebee Card 5 review |
| Lowest-cost thin card for iPhone | UGREEN FineTrack Slim | 1.7mm body and budget-oriented positioning if you can live with iPhone-only tracking. | UGREEN FineTrack review |
| Buyer who wants a sealed battery | Tile Slim | Three-year sealed battery and IP68 protection, using the Tile and Life360 ecosystem rather than Find Hub. | Tile tracker review |
| Mixed iPhone and Android household | KeySmart SmartCard Gen 3 | Choose Find My or Find Hub, then factory reset later if the wallet changes owners. | KeySmart review |
| Want one charge cycle closer to a year and a half | Nomad Tracking Card Pro | 16-month Qi battery makes sense if you are Apple-only and value low maintenance. | Nomad card review |
| Need AirTag-style directional arrows | Use an AirTag wallet instead | No card tracker has UWB Precision Finding; you need a disc AirTag pocket for arrows. | AirTag wallet picks |
The Best Wallet Tracker Cards at a Glance
| Tracker | Thickness | Battery | Network | Water resistance |
|---|---|---|---|---|
| Pebblebee Card 5 | 1.8mm | 18 mo, Qi rechargeable | Find My or Find Hub | IP66 |
| KeySmart SmartCard Gen 3 | 1.8mm | 11 mo, Qi rechargeable | Find My or Find Hub | IPX8 |
| UGREEN FineTrack Slim | 1.7mm | 12 mo, rechargeable | Find My (iOS only) | Check current rating |
| Chipolo CARD | 2.5mm | Up to 1 yr, Qi rechargeable | Find My or Find Hub | IP67 |
| Rolling Square AirCard Pro | 2.2mm | 12 mo, Qi rechargeable | Find My or Find Hub | Check current rating |
| Nomad Tracking Card Pro | 2.5mm | 16 mo, Qi rechargeable | Find My (iOS only) | IPX7 |
| Tile Slim (2024) | 2.5mm | 3 yr, sealed | Tile / Life360 | IP68 |
The TagsMate wallet takes a different approach by building the AirTag compartment directly into the leather. Wirecutter’s 2026 tracker guide found that card-format trackers are the only option thin enough for most bifold wallets.
How These Cards Compare
Thickness is the headline number for a card tracker, since it has to share a wallet slot without bulging, so each card here is compared at its thickest point. Half a millimeter is noticeable in a packed bifold.
Speaker ratings come from manufacturers and don’t predict performance inside every wallet. Wallet material, room noise, distance, and obstructions can all change what you hear.
Battery figures are manufacturer estimates, not independent runtime tests. Five cards use Qi charging, UGREEN uses its supplied magnetic cable, and Tile Slim uses a sealed battery.
Pebblebee Card 5: Thinnest Dual-Network Card
According to Pebblebee’s current specifications, Card 5 is 1.74mm thick, lasts up to 18 months per charge, supports wireless charging, and carries an IP66 rating.
The Card 5 supports Apple Find My or Google Find Hub, with one network selected during setup. Switching networks requires a reset and new pairing.
Pebblebee rates battery life at up to 18 months per charge. The Card 5 supports wireless charging and carries an IP66 dust-and-water rating, but it isn’t designed for immersion.
The main limitation: no UWB chip. You get a map position and a speaker, but not the directional arrow that AirTag 2 provides. For wallets specifically, the speaker usually gets the job done.
Your wallet is almost always within one room of where you left it. For a broader look at Pebblebee’s tracker lineup, see our Pebblebee Clip 5 review, or read our dedicated Pebblebee Card 5 review for a deeper dive on this specific card.
§ Review summary
Pebblebee Card 5
≡ Specs
- Thickness
- 1.74mm (about 1.8mm)
- Charging
- Wireless
- Battery
- Up to 18 months per charge
- Network
- Find My or Find Hub (one at a time)
- Water resistance
- IP66
✓ Pros
- +1.74mm official thickness, commonly rounded to 1.8mm
- +Wireless charging with up to 18-month battery life
- +Works on Apple Find My or Google Find Hub
- +IP66 dust and water resistance
✗ Cons
- −Choose one network at setup; reset and re-pair to switch
- −No UWB Precision Finding
- −Manufacturer battery estimate is not an independent runtime result
- −Internal battery degrades eventually, no replaceable cell
§ Buy if
- ·You want the thinnest possible wallet tracker
- ·You want wireless charging and a long rated charge cycle
- ·You can choose one phone ecosystem at setup
KeySmart SmartCard Gen 3: Best Waterproof Dual-Network Card
Weighing it against the Chipolo? Our KeySmart SmartCard vs Chipolo Card comparison goes head to head.
The KeySmart SmartCard Gen 3 supports both Apple Find My and Google Find Hub, but like every current dual-network card, it makes you pick one platform at setup. Switching later requires a factory reset and re-pairing.
At 1.8mm thick, it matches the rounded Pebblebee figure. KeySmart rates it for up to 11 months per Qi charge. Its NFC tap feature can open a URL configured by the owner.
For most buyers, the selling point is a thin card that can be assigned to either network and has stronger water resistance than most wallet trackers. In a household with both iPhone and Android users, choose the ecosystem used by the person most likely to recover the wallet.
Macworld’s Find My tracker roundup provides useful context for card-format trackers currently available.
§ Review summary
KeySmart SmartCard Gen 3
≡ Specs
- Thickness
- 1.8mm
- Charging
- Qi wireless
- Battery
- ~11 months per charge
- Network
- Find My or Find Hub (one at a time)
- Water resistance
- IPX8
- NFC tap
- Yes (business card)
✓ Pros
- +Find My or Find Hub, chosen during setup
- +1.8mm thin, matches Pebblebee Card 5
- +Built-in NFC tap for digital business card or URL
- +IPX8 water resistance, rated for sustained submersion
- +Can move between Apple and Google ecosystems after reset
✗ Cons
- −11-month battery is shortest rechargeable on this list
- −Often positioned toward the premium end of card-tracker pricing
- −No UWB Precision Finding
- −Newer brand with less established service track record
§ Buy if
- ·You want a 1.8mm card that can be set up on Apple or Google
- ·You want stronger water resistance than most wallet cards
- ·You can live with charging roughly once a year
UGREEN FineTrack Slim: Best Budget Pick
UGREEN lists FineTrack Slim at 1.7mm, with magnetic charging, up to 12 months per charge, and an 80dB sound rating.
It connects to Apple Find My, so it’s iPhone-only. Battery life is rated at 12 months per charge, and it recharges via a proprietary magnetic cable rather than Qi wireless. That cable is small and easy to lose, so keep a spare.
The speaker is on the quieter end compared to Chipolo or Pebblebee, but still audible across a room. For the full breakdown, see our UGREEN FineTrack review.
UGREEN also sells a variant with a claimed 7-year battery, but that model uses a sealed non-rechargeable battery and is slightly thicker. For most buyers, the standard rechargeable version is the better pick unless you specifically want a set-and-forget option.
§ Review summary
UGREEN FineTrack Slim
≡ Specs
- Thickness
- 1.7mm (thinnest)
- Charging
- Magnetic proprietary
- Battery
- ~12 months per charge
- Network
- Apple Find My (MFi)
- Platforms
- iOS only
- Subscription
- None
✓ Pros
- +Usually one of the lower-priced rechargeable cards in this group
- +1.7mm thick, the thinnest card tracker available
- +Apple Find My MFi integration
- +12-month rechargeable battery, no disposable cells
✗ Cons
- −iPhone only, no Android or Find Hub support
- −Proprietary magnetic charging cable, easy to lose
- −80dB manufacturer sound rating is lower than several rivals
- −Newer to the wallet-card market with less long-term reliability data
§ Buy if
- ·You're on iPhone and want a budget-oriented rechargeable card tracker
- ·You want the absolute thinnest profile (1.7mm beats every competitor)
- ·You're OK keeping a spare magnetic charging cable around
Chipolo CARD: Best Current Chipolo Wallet Card
Chipolo discontinued CARD Spot in 2025 and replaced it with the rechargeable Chipolo CARD. The current model works with Apple Find My or Google Find Hub, one network at a time.
Chipolo’s current CARD page states that CARD is 2.5mm thick, supports Qi charging, lasts up to one year per charge, carries IP67 protection, and is rated at about 110dB.
The CARD is thicker than the 1.7–1.8mm options, but it replaces the old sealed battery with a rechargeable design. Switching between Apple and Google requires a reset and new pairing.
Read the Chipolo CARD rechargeable review for the full tradeoffs. Existing CARD Spot owners can still use our legacy CARD Spot review.
§ Review summary
Chipolo CARD
≡ Specs
- Thickness
- 2.5mm
- Network
- Find My or Find Hub (one at a time)
- Battery
- Up to 1 yr, Qi rechargeable
- Speaker
- About 110dB (manufacturer rating)
- Water resistance
- IP67
✓ Pros
- +Apple Find My or Google Find Hub, one network at a time
- +Qi wireless charging with up to one-year rated battery life
- +IP67 dust and water resistance
- +Approximately 110dB manufacturer sound rating
✗ Cons
- −2.5mm is thicker than the 1.7-1.8mm cards
- −Requires a reset and new pairing to change networks
- −No UWB Precision Finding
§ Buy if
- ·You want a current Chipolo card instead of discontinued CARD Spot
- ·You want Qi charging and a choice of Apple or Google network
- ·You accept a 2.5mm profile for IP67 protection
Rolling Square AirCard Pro Dual: Premium Build Quality
Pick up the Rolling Square AirCard Pro Dual and you notice the difference immediately. The metal-reinforced frame feels rigid compared to the flex in most plastic card trackers. At 2.2mm thick, it lands between the ultra-thin newcomers and the thicker established cards.
It supports both Find My and Google Find Hub. Battery life is rated at 12 months per Qi charge. A built-in LED flashes when triggered from the app, which helps locate it inside a dark messenger bag where a speaker alone might not cut through.
This card is usually positioned toward the premium end of the group. Whether the metal frame and LED justify that premium over a budget-oriented UGREEN depends on how rough you’re with your wallet. For the full 3-SKU breakdown, dual-network behavior, and the 2.2mm vs 1.7mm thickness tradeoff vs Nomad, see our Rolling Square AirCard Pro review.
§ Review summary
Rolling Square AirCard Pro Dual
≡ Specs
- Thickness
- 2.2mm
- Charging
- Qi wireless
- Battery
- ~12 months per charge
- Network
- Find My or Find Hub
- LED light
- Built in
- Build
- Metal-reinforced frame
✓ Pros
- +Metal-reinforced frame, among the most durable cards here
- +Find My or Google Find Hub
- +Built-in LED helps locate in dark messenger bags
- +Qi wireless charging with ~12-month battery
✗ Cons
- −Usually one of the higher-priced cards in this roundup
- −2.2mm thicker than Pebblebee and UGREEN at 1.7-1.8mm
- −12-month battery is shorter than Pebblebee Card 5's 18 months
- −Newer brand with less established service track record
§ Buy if
- ·You're rough with your wallet and value premium build quality
- ·You need dual-network plus visible LED finding cues
- ·You'll pay more for build quality and an LED that cheaper cards may omit
Nomad Tracking Card Pro: Longest Rated Rechargeable Battery
Nomad rates the Tracking Card Pro for up to 16 months per Qi or MagSafe charge. At 2.5mm, it trades a thicker profile for a longer manufacturer-rated charge cycle.
Nomad reports a 2.5mm polycarbonate-and-aluminum body, IPX7 protection, and up to 16 months per charge. It doesn’t provide UWB Precision Finding.
The pitch here is simple: charge it once in January, forget about it until next spring. If that low-maintenance cycle appeals to you more than shaving off 0.7mm of thickness, the Nomad is the right call. Nomad also makes the Tracking Card Air, a thinner 1.7mm variant with dual-network support at a lower price point. For broader tracker recommendations, see our best item tracker guide.
§ Review summary
Nomad Tracking Card Pro
≡ Specs
- Thickness
- 2.5mm
- Charging
- Qi wireless
- Battery
- Up to 16 months per charge
- Network
- Apple Find My
- Platforms
- iOS only
- Finish
- Polycarbonate and aluminum
✓ Pros
- +Up to 16-month manufacturer-rated battery life
- +Qi and MagSafe wireless charging
- +Polycarbonate and aluminum body with IPX7 rating
- +Apple Find My integration
✗ Cons
- −2.5mm is among the thickest cards in this roundup
- −iPhone only, no Android or Find Hub support
- −Premium positioning without dual-network support
- −Thinner Tracking Card Air variant exists if you want 1.7mm + dual network
§ Buy if
- ·You're on iPhone and prefer one charge cycle a year over thinness
- ·You prefer a premium aluminum-edged design
- ·You don't need dual-network or sub-2mm card profile
Tile Slim: Best for Android Set-and-Forget
Tile Slim uses the Tile and Life360 ecosystem, not Apple Find My or Google Find Hub. Its sealed battery is rated for three years, so it suits buyers who prefer fewer charging tasks.
Tile’s model table confirms that the 2024 Slim is 2.5mm thick, with 350-foot range, a 104dB sound rating, a three-year battery, and IP68 protection.
The trade-off is the sealed battery. When it dies after three years, you recycle the entire card and buy a new one. Tile offers a reTile discount program for replacements, but it’s still more wasteful than a rechargeable option.
Choose Tile Slim if its app and network meet your needs and you want a sealed battery. For Google Find Hub, choose Pebblebee Card 5, Chipolo CARD, KeySmart, or AirCard Pro instead.
§ Review summary
Tile Slim (2024)
≡ Specs
- Thickness
- 2.5mm
- Battery
- 3 yr, sealed
- Network
- Tile / Life360
- Platforms
- iOS and Android apps
- Water resistance
- IP68
- Subscription
- Premium for alerts
✓ Pros
- +3-year sealed battery, zero maintenance for the device's lifetime
- +IP68 waterproof, the strongest overall rating in this roundup
- +Works with the Tile and Life360 ecosystem on iOS and Android
- +350-foot range and 104dB manufacturer ratings
✗ Cons
- −Sealed battery means you recycle and replace the entire card after 3 years
- −Does not use Apple Find My or Google Find Hub
- −Smart alerts and location history require Tile Premium
- −2.5mm is among the thicker card trackers
§ Buy if
- ·You accept the Tile and Life360 ecosystem for fewer charging tasks
- ·You want the strongest dust and water rating (IP68) in a card form
- ·You value Tile's long firmware track record
What Should You Look for in a Wallet Tracker Card?
Thickness: What Actually Fits in a Wallet
A standard credit card is 0.76mm thick. Two stacked: 1.52mm. The thinnest wallet tracker cards (UGREEN and the new eufy SmartTrack Card E40 at 1.7mm) add roughly one extra credit card worth of thickness. Nomad at 2.5mm adds about two.
All seven models are card-shaped, but fit depends on the wallet. A packed or rigid card slot makes the 0.8mm difference between a 1.7mm and 2.5mm tracker more noticeable.
Battery: Rechargeable vs Sealed
Six cards are rechargeable. Pebblebee, KeySmart, Chipolo, AirCard Pro, and Nomad use Qi charging. UGREEN uses a magnetic cable. Tile Slim has a sealed three-year battery.
Rechargeable designs avoid replacing the whole tracker when the battery ages. A sealed battery reduces charging tasks, but the full card must be replaced at end of life.
Network: Find My vs Google Find Hub vs Dual
Your phone and chosen app determine the network. Find My serves Apple devices, Find Hub serves compatible Android devices, and Tile Slim uses the Tile and Life360 network.
Pebblebee Card 5, KeySmart, Chipolo CARD, and AirCard Pro can pair with Find My or Find Hub. They use one network at a time, and switching requires the maker’s reset and re-pairing steps.
What About UWB Precision Finding?
None of the seven cards in this guide includes UWB. They provide map, proximity, and sound-based finding through their supported network rather than AirTag-style directional Precision Finding.
If a card-shaped wallet tracker is the question, our AirTag and Orbit wallet trackers covers the Orbit tradeoffs.
If directional finding is essential, use an AirTag wallet with a disc pocket. A card tracker stays slimmer but relies on its map and speaker.
UGREEN FineTrack Slim is the thinnest model in this group at 1.7mm. It still adds thickness, and fit depends on the wallet’s card-slot tolerance.
Bottom Line
Pebblebee Card 5 is the top all-round pick. It combines a roughly 1.8mm profile, an up-to-18-month battery estimate, wireless charging, and a choice of Find My or Find Hub.
UGREEN is the budget iPhone option. Tile Slim suits buyers who accept its Life360 ecosystem and want a sealed battery. Mixed-platform households should choose a dual-network card.
Compare wallet fit, battery design, and network before buying. None of these seven cards provides UWB. Our tracker finder can narrow the wider tracker market.
FAQ
What is the thinnest wallet tracker card in 2026?
UGREEN FineTrack Slim is the thinnest model here at 1.7mm. Pebblebee Card 5 and KeySmart SmartCard Gen 3 are about 1.8mm. Wallet fit still depends on the slot and how many cards it already holds.
Do wallet tracker cards use GPS or Bluetooth?
These wallet cards use Bluetooth, not onboard GPS or cellular service. They report through their supported network, such as Find My, Find Hub, or Tile and Life360, so remote updates depend on nearby participating devices.
Can a wallet tracker card demagnetize my credit cards?
Wallet trackers are designed for card slots, but models with wireless charging contain charging components and materials that differ by product. Follow the maker’s placement guidance if you still use magnetic-stripe cards.
How long do rechargeable wallet tracker cards last per charge?
Manufacturer estimates in this group range from about 11 to 18 months per charge. Pebblebee rates Card 5 up to 18 months and Nomad rates Card Pro up to 16. UGREEN uses magnetic charging; the others use Qi.
Do any wallet tracker cards work with both iPhone and Android?
Yes. Pebblebee Card 5, KeySmart SmartCard Gen 3, Chipolo CARD, and AirCard Pro can use Find My or Find Hub. They use one network at a time, and switching requires the maker’s reset and pairing process.
Is a wallet tracker card better than putting an AirTag in my wallet?
A card tracker fits a normal card slot, while an AirTag needs a disc pocket. AirTag 2 adds UWB Precision Finding on compatible devices. Card trackers stay slimmer and use map, proximity, and sound-based finding.
Are wallet tracker cards waterproof?
Ratings vary by model. Tile lists IP68, Chipolo CARD IP67, Pebblebee Card 5 IP66, and KeySmart IPX8. Treat these as manufacturer ratings; don’t assume every card is safe for immersion.
