H.264 vs H.265: Which Codec for Baby Monitoring?

H.264 is lighter on your device but uses more bandwidth. H.265 saves bandwidth but works your CPU harder. Here's how to choose for your baby monitor.

What Are H.264 and H.265?

H.264 and H.265 (also called HEVC) are video compression standards — they determine how your camera encodes the video stream before sending it to your iPhone or iPad. Most IP cameras support both, and you can usually choose which one to use in your camera’s settings.

The short version: H.264 is easier on your device, H.265 is easier on your network. For baby monitoring, either works well — but understanding the tradeoff helps you pick the best option for your setup.

H.264: Less Work for Your Device

H.264 has been the standard for over a decade. It’s mature, widely supported, and very well optimized on Apple hardware.

Advantages:

  • Lower CPU usage — H.264 decoding is extremely efficient on iPhones and iPads. Your device does less work per frame, which means less heat and better battery life.
  • Better power consumption — If you’re monitoring for long stretches, H.264 will drain your battery slower than H.265.
  • Universal support — Every camera and every device handles H.264 without issue.

Tradeoff:

  • More bandwidth — H.264 produces larger video streams for the same quality. A typical 1080p H.264 stream runs around 4-6 Mbps, depending on camera settings.

H.265: Less Work for Your Network

H.265 (HEVC) is the newer standard. It compresses video more efficiently, producing smaller streams at equivalent quality.

Advantages:

  • Lower bandwidth — H.265 typically cuts the bitrate roughly in half compared to H.264 at the same quality. A 1080p stream might drop from 4-6 Mbps to 2-3 Mbps.
  • Better for WiFi cameras — If your camera is on WiFi (especially if the signal is weak or congested), the lower bandwidth of H.265 means fewer dropped frames and a more stable stream.
  • Better for multiple cameras — Watching several cameras at once puts more load on your network. H.265 helps keep total bandwidth manageable.

Tradeoff:

  • More CPU-intensive — H.265 decoding requires more processing power. On modern iPhones and iPads this is still hardware-accelerated and fast, but it does use more energy than H.264.

Which Should You Choose?

Situation Recommended
Wired (PoE) camera, single camera H.264 — bandwidth isn’t a concern, save battery on your device
Wired camera, multiple cameras Either works — H.264 for less device load, H.265 if you’re watching many at once
WiFi camera, strong signal H.264 — plenty of bandwidth, lighter on your device
WiFi camera, weak or congested signal H.265 — the lower bitrate helps maintain a stable stream
Older iPhone or iPad H.264 — less demanding on older hardware
Background audio only Doesn’t matter — video isn’t decoded in background mode, only audio

The Practical Answer

For most people with a decent WiFi setup or a wired camera, H.264 is the simpler choice. It’s lighter on your device, uses less battery, and the extra bandwidth is a non-issue on a healthy home network.

If you’re dealing with WiFi problems — weak signal to the nursery, lots of devices competing for bandwidth, or you’re seeing dropped frames — switch to H.265. The bandwidth savings can make the difference between a choppy stream and a smooth one.

You can always try one and switch to the other in your camera’s settings. LocalNanny handles both seamlessly.

How to Change the Codec

Most cameras let you choose H.264 or H.265 in their web interface or mobile app under video settings. Look for “Video Encoding,” “Codec,” or “Compression” in the stream settings. Some cameras call H.265 “HEVC.”

If your camera has a main stream and a sub stream, the codec setting is usually per-stream. You can set each one independently.