Most phones make it simple, but the exact steps can vary by model. Here’s a general guide you can use:

1. Power down your phone to protect your data.
2. Locate the SIM/microSD tray or dedicated card slot and use the eject tool (or a paperclip) to open it.
3. Place the card gently in the tray, matching the contact orientation shown on the tray.
4. Reinsert the tray and power the phone back on.
5. Open Settings > Storage to format the card if prompted. You may see options for portable storage (easy to move between devices) or internal/adopted storage (ties the card to this phone).
6. Move photos, downloads, and compatible apps to free up space.

Cards labeled A1 or A2 can help with app performance; V30 can help with higher‑resolution video recording.

For continuous recording, look for a card built to handle frequent writes and higher bitrates.

• Choose a microSD with Class 10 and UHS‑I; V30 is helpful for 1080p and 4K recording.
• Consider “high‑endurance” cards designed for 24/7 or loop recording.
• Confirm your camera’s supported capacity (e.g., up to 128GB, 256GB, or more) in its manual.
• Format the card in the camera’s settings before first use for best compatibility.
• Enable loop recording so older footage can be overwritten as needed.

On Walmart.com, you can filter by capacity and speed class to match your camera’s requirements. Actual performance and compatibility can vary by model and firmware.

Most phones that support expandable storage use microSD formats, but limits vary by device. Here’s how to choose:

• Card type: microSDHC (typically up to 32GB) and microSDXC (higher capacities) are common.
• Speed: Class 10 and UHS‑I are solid for everyday use; U3/V30 can help with high‑resolution video capture.
• Apps and multitasking: A1 or A2 cards are designed to help with app launches and operations.
• Capacity: Check your phone’s maximum supported size before buying.
• Storage mode: Some phones offer portable vs. internal/adopted storage; pick what fits how you use the card.

You can use filters on Walmart.com to quickly match capacity and speed to your needs.

It depends on whether you’re storing maps, recording video, or both. Consider the following:

• For map storage: A reliable microSDHC or microSDXC with Class 10/UHS‑I is a practical choice.
• For dash cam recording: Cards labeled “high‑endurance” can better handle constant write cycles; V30 is helpful for higher‑resolution video.
• Capacity: Check your device’s manual for supported sizes to avoid errors.
• Form factor: If your device takes full‑size SD, many microSD cards include an SD adapter.
• Setup: Formatting the card in the device can improve compatibility.

Results can vary by model, so matching the card’s speed and capacity to your device’s specifications is a good approach.

Think about what you’ll store and how often you record video:

• Light use (photos, a few playlists, some apps): Smaller capacities can be sufficient.
• Everyday use (lots of photos, offline music, casual video): Mid‑range capacities offer more breathing room.
• Heavy use (4K video, large games, offline movies): Larger capacities, such as 256GB and above, may be more comfortable.
• Video capture: Higher bitrates fill cards faster; V30‑rated options can help with 4K.
• Device limits: Always confirm your phone’s maximum supported capacity.

You’ll find options ranging from compact sizes to 1TB+ on Walmart.com, so you can pick what fits your habits without overbuying.