Understanding mobile email optimization (classic editor)

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You will learn

Learn about the default mobile optimization settings Klaviyo offers for emails, as well as tools for customizing how your message appears across devices. You can also choose to disable all mobile optimizations by navigating to the Styles tab of your email template. 

General mobile optimization options

If you choose to enable mobile optimizations, certain adjustments will be made automatically to optimize your email's appearance when viewed on a mobile device.

If you would prefer your email not be optimized for mobile devices, disable optimizations in the mobile section of your template's Styles tab.

Mobile optimization in the Styles tab

There are a number of other settings that allow you to make adjustments specifically for mobile viewing, including:

  • Adjust content margins
  • Adjust text and heading sizes on mobile
  • Adjust text and heading spacing on mobile
  • Adjust block padding on mobile

Header/Link Bar layout on mobile

For any header/link block, you can navigate to the Block Styles tab and choose your mobile layout. The default is Stack, but you can change this to suit your needs.

The Stack on Mobile dropdown in the Klaviyo template editor

Hide on mobile or desktop

You can select if you would like a block to appear on mobile, desktop, or both. This can be customized for any block by navigating to the Block Styles tab.

The desktop/mobile/both toggle in the Klaviyo template editor

Stretch image option

For an image block, you can choose to stretch an image to the full width of the frame when viewed on mobile. You will see this option in the Block Styles tab for any image block. The Stretch Image option will allow you to toggle between Yes (Stretch) and Inherit (Not Stretch).

Columns stack on mobile

Stacking columns (created using the Add Columns or Split Block options) on mobile devices allows for larger text and images that are easier to read on a small screen. If you'd prefer your columns appear side-by-side on mobile, use a Table Block instead. The columns in your Table Block will remain side-by-side, but will be resized to fit on a mobile screen. 

Email client support for mobile optimization

Many email apps have varying levels of support for mobile optimizations.

If you are concerned about how your email design will render across different email clients and devices, using a third-party email testing tool can help.

We recommend exploring the use of a tool like Litmus, which offers a free trial as well as monthly paid plans. You can also search for free alternatives that allow you to test and preview how your emails will look when viewed by recipients using different email clients and devices.

Determine how many subscribers are opening on mobile

In the Advanced Reports tab of a given campaign, you can see a breakdown of how many recipients opened your email on a mobile versus desktop browser. This can give you an indication of how your audience is interacting with your emails. You can also segment based on this information by adding a filter to the What someone has done (or not done) > Opened Email condition.

A campaign report showing the percentage of openers who used mobile devices

Additional resources

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