Both help you keep tabs on valuables, but they work differently.

• Card trackers (wallet-style): Ultra‑slim Bluetooth devices that slip into a wallet, passport holder, or luggage tag. They pair with your phone and can play a sound when nearby. Location is typically based on your phone’s proximity or a supported finding network, so real‑time range can vary.
• Dedicated GPS trackers: Often used for vehicles or assets. They use GPS and cellular data for near real‑time updates, and some offer geofences, trip history, alerts, and rugged/waterproof housings. They may need continuous power or periodic charging, and some models include data plans.

On Walmart.com, use filters to compare size, power, alerts, and waterproof ratings.

Compatibility varies by model, so a quick spec check helps.

• Operating system: Some cards are designed for one platform only; others work across platforms via a companion app. Look for “works with phone’s built‑in find network” or “app required.”
• Bluetooth: Ensure your phone supports the required Bluetooth version (often Low Energy).
• App permissions: Location/Bluetooth permissions are typically needed for features like ringing and mapping.
• Extras: If you want wireless charging or left‑behind alerts, confirm those in the Features/Specifications sections.

Tip: On Walmart.com, check “About this item” and “Specifications,” and use filters for compatibility to match your phone and needs.

Battery life depends on the model and your usage.

• Rechargeable cards: Many support wireless charging; runtime varies with features like sound alerts, update frequency, and left‑behind notifications. A quick top‑up can restore function, but exact times differ by device.
• Long‑life cards: Some list extended battery life (e.g., multiple months or up to a year), then are replaced or recharged afterward.
• Usage and environment: Frequent ringing, weak signal areas, and extreme temperatures can shorten runtime.

To get the most from your card, charge fully before first use, follow the included charging indicators, and review the product page for the stated battery approach and care tips.

They can help you keep tabs on bags and documents without adding bulk.

• Placement: Slip the card into a luggage tag, passport sleeve, or an outer pocket so it’s not buried under dense items.
• Durability: Look for water‑resistant ratings (e.g., IP67/IP68) to handle spills and weather.
• Alerts and sound: Models with left‑behind reminders and audible ring can make retrieval easier in busy areas.
• Policies and privacy: Always follow airline and venue rules for electronics, and only track items you own. Respect local laws.

On Walmart.com, filter by waterproof rating, charging style, and alert features to find a travel‑friendly option.

A few checks can often help restore a connection.

1. Power: Fully charge the card (or confirm vehicle/OBD power for wired units). Watch for LED status cues if present.
2. Range and radio: Move closer, enable Bluetooth, and toggle it off/on. Ensure required phone permissions (Bluetooth/Location) are granted.
3. Reset and re‑add: Follow the manual to reset the tracker, then remove and add it again in the app or phone’s device‑finding menu.
4. Updates: Update your phone OS and the companion app.
5. One device at a time: Make sure another phone isn’t connected.

If issues persist, check the product page for support details or use your Walmart account to review return and help options.