Have an unused Android device collecting dust? There are numerous innovative ways to repurpose it, including converting it into a webcam or a smart home controller. A lesser-known yet practical option is to use it as a Wi-Fi extender, ideal for eliminating those frustrating dead zones in your home.
Old Android phones can connect to Wi-Fi networks and also function as hotspots. By strategically placing your old device, you can transform it into a Wi-Fi extender or repeater, which amplifies your existing Wi-Fi signal. While it won't enhance the speed of the connection, it can effectively increase the range, allowing you to access the internet in areas previously out of reach. Before investing in a dedicated extender, consider trying this method with your spare Android device.
How to Use Your Old Android Device as a Wi-Fi Extender
The process varies slightly depending on the phone model, but generally, you can find the Wi-Fi hotspot feature in the Settings menu. For instance, on a Pixel device, navigate to Network and internet, then Hotspot and tethering. Activate the Wi-Fi hotspot option to create a new Wi-Fi network linked to your main one. You can customize the name and password for this new connection, but be aware that it will differ from your primary Wi-Fi network.
Additionally, ensure that the Turn off hotspot automatically feature is disabled to keep the hotspot active continuously. Under Speed and compatibility, select the appropriate frequency band (2.4GHz or 5GHz) to optimize connectivity. Keeping the device plugged in is advisable to maintain power and functionality.
If your device lacks cellular data, you can remove the SIM card or disable data access to ensure it operates solely as a Wi-Fi-to-Wi-Fi hotspot. For Samsung Galaxy users, access the settings through Connections and then Mobile Hotspot and Tethering to toggle the hotspot feature.
Testing the Galaxy S25 Ultra as a Wi-Fi Repeater
I experimented with a Galaxy S25 Ultra, and it performed admirably. While it may not compare to a dedicated mesh network, it serves well for casual internet use, especially if you have an extra Android device on hand. After some adjustments to find the optimal placement between my router and laptop, I achieved satisfactory results. With the device positioned upstairs, I recorded download speeds of around 60 Mbps--adequate for streaming high-definition content.
As I moved further away, speeds decreased to approximately 12 Mbps, but the connection remained functional for web browsing and email. Results may vary based on your device, internet speed, and home layout, but many Android devices should support this feature. However, older models may not be compatible, so check your device's capabilities before proceeding.
This innovative use of an old Android phone not only saves costs but also enhances your home connectivity, paving the way for a more connected future.