MMS messages that are too large can cause problems with deliverability. Handsets and the carrier gateways used to deliver MMS messages have file size limitations. Because these file size limitations vary phone to phone and carrier to carrier, we provide an MMS content transcoding service to optimize your content for you. When you upload content into our system, we will automatically resize it for various phones and gateway limitations.
Most mobile devices launched over the past 5 years have displays in portrait mode. Therefore, we recommend mobile content be optimized for this layout. Images should be portrait or square otherwise, there will be a significant amount of space above and below the content. People are not used to twisting their phones to look at a picture full screen like they are for a video. A video can be either widescreen or portrait.
Content of Interest Area
MMS messages are delivered to the device’s messaging application and display a preview bubble. This bubble preview cuts off content on the top and on the sides. Additionally, devices may overlay controls over the top and bottom of the image once it is expanded. Therefore, any content of interest should be kept in the areas displayed on the preview bubble without having to open the content full screen.
We recommend keeping MMS images files under 1Mb.
Skycore performs frequent tests of all content to determine the best dimension size. Our most recent tests brought us the same conclusions as mentioned in ‘Optimum MMS Size for Mobile Marketing in 2015.’ The optimal image size across all devices has an aspect ratio of 9:16. We recommend 640px by 1138px or 1080px by 1920px.
640px by 1138px : Avoid adding content of interest on the top 129px and the bottom 89px.
1080px by 1920px : Avoid adding content of interest on the top 219px and the bottom 150px.
We advise you to use a file under 600 KB.
When creating your animated gif, dimension size is an important aspect to consider. We recommend either using square content or portrait mode content. Animated content in a landscape format does not look good across all devices. We do not recommend creating animated gif images that extend to the top and bottom edges of the screen because these spaces may be covered up anyway by the preview bubble or navigation controls. By limiting the animated gif to the areas of interest, you will be able to use more animation slides or more colors in your image.
Recommended Dimensions (Portrait/Vertical)480px wide by 720px tall (a little animation)480px wide by 640px tall (a lot of animation)
Recommended Dimensions (Square)640px wide by 640px tall (a little animation)480px wide by 480px tall (a lot of animation)
**At the moment, Animated GIFs are not displaying properly on iOS/Apple devices unless the width is 320px or less.
480px by 720px: Avoid placing content of interest in the 39px at the top, right, and bottom of the gif. Also avoid the adding such content in the 44px on the left side of the gif.
480px by 640px: Avoid placing content of interest in the 65px at the top, and the 58px at the bottom of the gif. Also avoid the 39px to each side of the gif.
640px by 640px: Avoid placing content of interest in the 52px at the top, right, and bottom of the gif. Also avoid the adding content in the 58px on the left side of the gif.
480px by 480px: Avoid placing content of interest in the 39px at the top, right, and bottom of the gif. Also avoid the adding such content in the 43x on the left side of the gif.
When decreasing file size, you want to make sure that you are not decreasing the quality. Blurry animated images will not leave a good impression with your customers. Here are a few tips to keep the file size down without hurting the quality of the animation.
*An animated gif is a .gif image file composed of multiple images that play on a loop. Unlike videos, animated gifs files do not include sound and do not require the viewer to press play.
We recommend keeping MMS video files under 20 mb if you are using Skycore transcoding. This will result in Video files from 500Kb to 1.5Mb. We recommend keeping your MMS video files under 1Mb if you are not using Skycore transcoding.
Landscape (Horizontal)1280px by 720px
Portrait (Vertical)640px by 1138px
When you send a video, different Android devices show different preview thumbnails. We tested multiple videos in different lengths with some Android phones we had. Also, we tested multiple different videos of the same length to see if the results would be consDifferent Android devices receiving videos via MMS may show different preview thumbnails. We had tested the video preview thumbnails by sending multiple videos with different video time duration to several different Android devices. The results as shown in the screenshot indicate that:
In conclusion, the results did not show any clear consistencies regarding video thumbnail previews.
Duration: Videos kept under 20 seconds long will be delivered in HD quality to most phones.
Frame Rate: 30 FPS
Bitrate: 2-5 mbps
You can improve the quality of your video by using the following techniques: