How to Turn Your Old Phone into a Pet Camera

Got a spare phone sitting in a drawer? Instead of letting it collect dust, you can turn it into a dedicated pet camera in minutes — no extra hardware required, no monthly fees.

This guide walks you through exactly how to do it, what to look out for, and what makes a good pet camera setup at home.

Why Use a Spare Phone as a Pet Camera?

Most pet cameras on the market cost $50–$200 upfront, plus a recurring subscription fee just to access your own footage. If you already have an unused smartphone, you're throwing money away buying dedicated hardware.

A spare phone used as a pet camera gives you:

Live video feed — check on your pet anytime from your main phone
Two-way audio — talk to your pet or call out to them
Zero extra hardware cost — reuse what you already own
Full control over placement — no fixed mounting positions, move it anywhere

What You Need

One spare phone (iOS or Android) — this becomes the camera
Your main iPhone — this is the viewer/controller
A stable Wi-Fi connection at home
A pet camera app that supports spare phone pairing

Step-by-Step: Setting Up Your Spare Phone as a Pet Camera

Step 1: Download the App

Download Call Pet on both your main iPhone and your spare phone. Call Pet is free to download and designed specifically for this spare-phone-as-camera setup.

Step 2: Open the App on Both Phones

Launch Call Pet on your main iPhone first. You'll see an option to set the device as the controller (viewer). On your spare phone, set it as the monitor (camera).

Step 3: Pair with a QR Code

On your main iPhone, tap to generate a pairing QR code. Point your spare phone's camera at it. Pairing takes about 10 seconds — no account, no password, no email required.

Step 4: Position the Camera Phone

Place your spare phone somewhere with a clear view of your pet's favorite spot — their bed, feeding area, or the couch they're not supposed to be on. Prop it up against a book, use a phone stand, or mount it on a shelf.

Step 5: Let It Run

Once paired, your spare phone's screen turns off automatically to save battery. Your pet is now being monitored. Open the app on your main iPhone anytime to check in, and tap the microphone to talk to your pet.

Tips for a Better Setup

Battery life: Keep your spare phone plugged in. Running a live camera stream will drain the battery over a full day. A simple charging cable keeps it running indefinitely.

Wi-Fi placement: Position the spare phone within good Wi-Fi range. Weak signal causes dropped connections. If your home has dead spots, a Wi-Fi extender helps.

Camera angle: Pets spend most of their time low to the ground. Place the camera at a low angle — around 30–60 cm off the floor — for a better view of what your pet is actually doing.

Lighting: Cameras struggle in dark rooms. If your pet's area doesn't get much natural light, a small ambient light nearby makes a big difference.

Night monitoring: If you need to check on pets at night, consider a phone with a decent low-light camera, or add a small night light to the room.

What About Privacy?

This is worth thinking about. Most pet camera apps route your video through their own cloud servers — meaning a third party is storing recordings of the inside of your home.

Call Pet takes a different approach: video streams go directly from your spare phone to your main phone using peer-to-peer WebRTC technology, with end-to-end encryption (X25519 + AES-GCM). No video is stored on any server. No one else can access your stream.

If privacy matters to you — and it should — choose a pet camera solution that doesn't rely on cloud video storage.

Android vs. iOS as the Camera Phone

Either works. Call Pet supports both iOS and Android as the camera device. Your main viewing device needs to be an iPhone. If your spare phone is Android, it works perfectly as the camera end of the setup.

Common Questions

Can I use a really old phone? Yes. Call Pet is optimized for older devices. It keeps the screen off and minimizes battery usage. Even a phone from 5–6 years ago works well as a camera.

What if the connection drops? Call Pet reconnects automatically. If your home Wi-Fi blips, the connection restores itself without you needing to do anything.

Can I monitor multiple pets or rooms? You can set up multiple spare phones as cameras and switch between them in the app.

Does the spare phone need a SIM card? No. It just needs Wi-Fi. An old phone with no active SIM works fine.

Final Thoughts

Turning a spare phone into a pet camera is one of the most practical ways to reuse old hardware. You get a real-time, private view of your pet without buying new equipment or paying ongoing subscription fees.

If you want to try it, download Call Pet for free and have your setup running in under five minutes.