Does RFID Blocking in Phone Cases Reduce Signal? Check Out This Guide

Fraud, identity theft, and stealing personal information are becoming prevalent crimes globally. Accessory makers are taking their part in reducing this rate by embedding RFID (Radio Frequency Identification) blocking technology in wallets, bags, and phone cases. This helps prevent thieves from using scanners to capture sensitive data from RFID-enabled cards.

How? It works by creating a protective barrier that disrupts the electromagnetic fields used in RFID communication.

An RFID-blocking phone case usually includes layers of metal or metallic fabric to block these signals. However, this raises the question: Can these materials also interfere with your phone’s signals, like 4G, 5G, or Wi-Fi?

Let’s address it below.

Does RFID-Blocking Phone Case Affect Phone Signal?

In most cases, RFID-blocking phone cases should not interfere with phone signals. Your phone’s cellular signals operate at much higher frequencies than RFID signals. While RFID tags typically operate between 125 kHz and 13.56 MHz, cellular networks range from 700 MHz to over 5 GHz.

This means they use different wavelengths that shouldn’t be affected by RFID-blocking materials.

However, there have been some user-reported cases where metal components in RFID-blocking cases can cause slight interference with phone reception or Wi-Fi signals. This occurs because the metallic shielding might inadvertently block or reflect some of the electromagnetic waves your phone needs to maintain connectivity.

A study conducted by the Federal Communications Commission (FCC) on phone case materials found that some types of metal can reflect electromagnetic waves, but the impact is usually minimal and depends on the case's design.

We'll elaborate below:

• Metal objects and EM radiation: Metal objects can interfere with EM radiation by redistributing the EM field to a smaller region, which increases power absorption and temperature. The size, shape, and distance of the metal object from the antenna all affect how much power is absorbed.

• Poorly engineered cases: Some phone cases can intensify the radiation that reaches the user's body and head. Poorly designed cases can also weaken the signal, cause dropped calls, and drain the phone's battery faster.

• Electromagnetic interference (EMI): EMI is an unwanted signal that can affect electronic devices and prevent them from working properly. EMI can be caused by natural and man-made sources.

• Cell phone radiation: The rate at which a cell phone emits radio frequency energy is measured by a phone's specific absorption rate (SAR). Cell phone companies must conform to published SAR standards when manufacturing their phones.

How to Fix Signal Issues Caused by an RFID-Blocking Case

If you suspect your RFID-blocking case is affecting your phone’s signal, here are some simple steps you can take:

Fix #1. Remove the Case and Test Signal Strength

The easiest way to determine whether the case is affecting your phone’s performance is by temporarily removing it. Check your signal strength without the case in different areas to see if there’s an improvement. You can also check your phone’s signal in its settings (look for the “Field Test Mode” for a detailed analysis).

Fix #2. Use a Case with Optimized Design

Look for RFID-blocking cases that explicitly mention they do not interfere with phone signals. Some manufacturers optimize the placement of metallic components to avoid signal disruption. Thin layers of metal or fabric that do not cover the phone’s antenna bands can prevent interference.

Fix #3. Choose a Case with a Non-Metallic Back

If your phone’s antennas are located near the back, using a case with a non-metallic back panel can help. Many RFID-blocking cases have only the wallet section lined with blocking material, while the phone’s back remains free from any metallic shielding.

Fix #4. Use an External Signal Booster

Consider using a signal booster if you live or work in an area with poor signal strength. These devices amplify weak signals and ensure your phone remains connected even if the case adds minor interference.

Fix #5. Position Your Phone for Better Reception

Even with a case, signal loss can often be mitigated by positioning your phone properly. Make sure you’re not covering the antenna with your hand or keeping the phone near other metal objects that can cause interference.

Are Leather Phone Cases a Good Option for Signal Strength?

Genuine leather phone cases, unlike RFID-blocking cases with metallic layers, do not generally interfere with signal strength.

Leather is a non-conductive material, which means it doesn’t block or reflect electromagnetic waves like metal-based cases might. This makes leather wallet cases a good option if you’re looking for a balance between style, protection, and strong phone reception.

Leather phone cases are among the best options for those concerned about signal interference because they are made from non-metallic materials, thus they have a negligible effect on radio frequencies. In short, they won’t necessarily disrupt cellular, Wi-Fi, or GPS signals.

Why Leatherborne?

If you own the iPhone 16 Pro series or Pixel 9 Pro XL, check out our genuine full-grain iPhone 16 series leather case and Pixel 9 Pro XL case!

• Non-Conductive Material: Leather won’t block or distort signals.

• Premium Full-Grain Leather: Provides durability that stands the test of time.

• Versatile Wallet Design: Features multiple card slots and a spacious compartment for cash, receipts, or tickets.

• Handmade Craftsmanship: Carefully handcrafted by skilled artisans.

• RFID Blocking Technology: Protects your personal information from credit cards or ID cards

• Magnetic Closure: Safeguards your phone and belongings.

Protecting your sensitive data is crucial, and the slight trade-off in signal strength may be worth the peace of mind. Always opt for high-quality RFID-blocking cases that prioritize both security and phone performance.