📚 Video Formats Guide
The Best Video Format for Mobile: MP4
The short answer: MP4 is the best video format for mobile phones. It's natively supported by both iOS and Android, plays without any extra apps, and offers excellent quality at reasonable file sizes.
When you download YouTube videos from YTDownload.us for mobile viewing, always choose MP4 format. It guarantees playback on any phone.
Format Compatibility by Device
| Format | iPhone/iPad | Samsung/Android | Recommended? |
|---|---|---|---|
| MP4 (H.264) | ✅ Native | ✅ Native | ✅ Best choice |
| MP4 (H.265) | ✅ iPhone 7+ | ✅ 2017+ phones | ✅ Great for storage |
| M4A (Audio) | ✅ Native | ✅ Native | ✅ For audio only |
| WebM (VP9) | ⚠ Browser only | ✅ Most phones | ⚠ Limited on iOS |
| MKV | ❌ Needs app | ⚠ Some players | ❌ Not recommended |
| AVI | ❌ Needs app | ❌ Needs app | ❌ Not recommended |
| MOV | ✅ Native | ⚠ Some phones | ⚠ iOS only |
Best Resolution for Mobile Downloads
Higher resolution isn't always better on a phone screen. Here's what actually makes sense:
iPhone Recommendations
- iPhone 15 Pro Max — 1080p is perfect. 4K is overkill for the 6.7" screen but useful if you'll AirPlay to a TV.
- iPhone SE — 720p is sufficient for the 4.7" display.
- Any iPhone — 1080p is the sweet spot for quality vs storage.
Android Recommendations
- Flagship phones (Samsung S24, Pixel 9) — 1080p. While they have 1440p displays, the quality difference vs 1080p on a phone screen is barely noticeable.
- Mid-range phones — 720p is ideal: great quality, small file sizes.
- Budget phones — 480p or 720p. Saves storage and loads faster.
Storage Space Considerations
Mobile storage fills up fast. Here's how much space YouTube videos typically use:
| Quality | 10 min Video | 1 Hour Video |
|---|---|---|
| 360p | ~15 MB | ~90 MB |
| 480p | ~25 MB | ~150 MB |
| 720p | ~50 MB | ~300 MB |
| 1080p | ~100 MB | ~600 MB |
| 4K | ~400 MB | ~2.5 GB |
| Audio only | ~5 MB | ~30 MB |
Pro tip: If you only need the audio (music, podcasts), select "Audio only" when downloading from YTDownload.us. Audio files are ~95% smaller than video files.
Mobile Video Format FAQ
What format should I download for iPhone?
MP4 in 1080p. It plays natively in the Files app and Photos app. No extra apps needed. For audio only, M4A is perfect.
What format should I download for Samsung/Android?
MP4 in 720p or 1080p. Android supports MP4 natively across all brands. 720p offers the best quality-to-size ratio for mobile screens.
How do I play downloaded videos on my phone?
MP4 files play automatically with your phone's built-in media player. On iPhone, open from Files app. On Android, open from Downloads folder or your file manager.
Can I free up space by converting to a smaller format?
Re-encoding to a lower quality will reduce file size but also reduces quality permanently. It's better to download in the right quality/format from the start.