Intro
This article recommends optimum file size ranges for different media types when used as content for Bluetooth campaigns.
A general rule is that the smaller the file the more likely a successful delivery will be achieved.
For images a portrait layout is recommended since this will look best on the majority of receiving devices.
These are only guide lines for best results and you may send files of any size.
File type size recommendation
| File extension | Media type | Recommended maximum size |
|---|
| 3gp | Movie Files | 1.5mb* |
| gif | GIF files | 500kb |
| jad;jar | Java applets | * |
| jpg;jpeg | Jpeg files | 500kb |
| mp3 | MP3 files | 1mb* |
| txt | Text files | 500kb |
| vcal | Calendar item | ~ |
| vcf | Contact item | ~ |
| vnt | vNote | ~ |
* Unicast does not impose a maximum file size, large files may be sent but these should be sent using low range radio and accompanied by signage to inform people that there is a broadcast in their vicinity and should wait patiently for the content to be received.
Edit (2009-12-17) this article has been expanded on in a newer article see:
File Size and Image Resolution Guidelines.