Are browser calls energy efficient?

Modern browsers implement efficient audio codecs and hardware acceleration. Browser calls can be nearly as energy efficient as native apps for most use cases.

How can I reduce battery use during calls?

Use Wi-Fi, lower screen brightness, close background apps and tabs, use headphones, and prefer audio-only calls when possible.

Do browser calls drain more battery than native apps?

It depends. Native apps can be optimized for background audio, hardware codecs, and lower-level power APIs, which can reduce battery use in some cases. Modern browsers using WebRTC are increasingly efficient and can be comparable to apps for most use cases, especially for short or occasional calls.

Which factors drive battery usage during a VoIP call?

CPU load from encoding/decoding audio, networking (Wi-Fi vs cellular), screen-on time, microphone and speaker usage, and background tasks. Browser tabs, codecs, and device power settings also affect total drain.

How can I reduce battery use during browser calls?

Use Wi-Fi when possible, lower screen brightness, close other tabs and apps, use headphones, enable battery saver modes, and prefer audio-only calls instead of video. StartACall also uses efficient WebRTC settings to minimize unnecessary CPU work.

Battery & VoIP Calls

Browser vs App Calling
Battery Usage Explained

Name: StartACall Browser Calling
Brand: StartACall

Learn the practical differences in battery drain between making calls in your browser and using a native app. Get clear comparison points and simple steps to extend call time when using StartACall in your browser.

See Comparison

Platform

StartACall (Browser WebRTC)

Network

Wi-Fi or Cellular — optimized for both

Experience

HD audio, low latency, works without installing an app

StartACall uses modern WebRTC with efficient audio codecs and adaptive networking. For most users, browser calling offers battery and convenience comparable to native apps while avoiding downloads and updates.

Direct Comparison: Browser Calling vs Native App

A practical look at what affects battery life and how each option handles it.

Browser Calling (WebRTC)

No install required. Quick start and instant updates reduce background installers and background tasks from app stores.
Modern browsers optimize WebRTC. Chrome, Edge, and Safari implement hardware acceleration and efficient audio codecs to limit CPU use.
Screen time matters. Keeping the browser tab active and screen on will increase drain during long calls.
Background restrictions. Mobile browsers may pause tabs or reduce timer frequency when in the background, which can affect call stability on some platforms.

Native App Calling

Deeper OS integration. Apps can use low-power audio paths and background audio APIs to reduce battery in prolonged calls.
Potential background efficiency. On mobile, a well-built app may maintain a call while the screen is off with lower power usage than a browser tab kept active.
Updates and permissions. Apps add extra storage, background services, and update cycles that can indirectly impact battery usage.
Hardware codec access. Native code can sometimes access hardware codecs and low-level optimizations not exposed to browser environments.

Key takeaway

For most users and typical call lengths, modern browser-based calling is close to native app power efficiency while offering instant access across devices. Native apps can be slightly more power efficient for long background calls or highly optimized enterprise deployments, but they require installation and maintenance.

Practical Tips to Reduce Battery Use During Calls

Simple actions you can take right now to extend call time—works for browser and app calls.

Prefer Wi-Fi when available

Wi-Fi typically uses less power than cellular radios. If you must use cellular, use a strong signal area to avoid retransmissions.

Lower screen brightness

Keeping the screen dim during calls saves significant battery, especially on OLED devices.

Use headphones

Using wired or low-power Bluetooth earbuds reduces speaker power draw and can reduce required amplification.

Close background tabs and apps

Free up CPU resources and avoid extra network activity that increases power usage.

Choose audio-only when possible

Video increases CPU and radio usage. Switching to audio saves a large amount of power.

Enable power-saving modes

Most phones reduce CPU frequency and background activity which helps during long calls.

Frequently Asked Questions

Will a browser call stop when I lock my phone?

On some mobile browsers, locking the screen or switching apps can suspend the tab. For uninterrupted background audio, native apps may be more reliable on certain mobile platforms. StartACall is optimized to reduce interruptions where the browser allows it.

Does WebRTC use special codecs to save power?

Yes. Modern WebRTC implementations use efficient codecs like Opus that balance quality and CPU usage. Browser vendors also implement hardware acceleration when available.

Should I prefer the browser or an app for long conference calls?

If you need screen-off background calling for many hours, a native app may be slightly more efficient. For most meetings and everyday calls, the browser delivers excellent efficiency plus instant access.

How can StartACall help reduce battery drain?

StartACall uses optimized WebRTC settings, adaptive bitrate and codec selection, and lightweight web UI to minimize CPU and network work so your calls remain efficient in the browser.

Ready to try efficient, browser-based calling?

StartACall connects you to real phone numbers from your browser with WebRTC optimized for real-world battery and performance.

Browser vs App Calling Battery Usage Explained