Best Ad Sizes for Mobile Devices in 2015

This 2015, the battle among mobile ad sizes continues along with the birth of nonconventional ad formats. Publishers can enjoy a wide variety of ad sizes and units to choose from. Things are just getting more creative year after year. Every publisher must stay on top of these brilliant innovations at all times.

For your mobile inventory, you might want to check out these fresh facts for better results this 2015:

1) The Open Beta Unit: 320×50

The 320×50 mobile anchor unit is an open beta unit available to all publishers. The 320×100 is not allowed to be anchored. In short, it’s fine (and highly recommended) for 320×50 ad unit to be implemented as a mobile anchor but anything larger than that is not. Mobile sticky/anchor unit is a crisp, cool placement which is scroll-proof and always above the fold. It generates higher engagement.

open beta ad unit 320x50

2) Best Converting Mobile Ad Sizes

Last year, we mentioned that ‘The 320×100 large banner yields higher CTRs compared to the traditional 320×50.’ In the most recent Medialets Q3 2014 study, the best converting ad sizes are 320×50 & 300×50 on handsets while 728×90 tops on tablets.

top performing ad sizes by conversion rate

3) Try mobile video!

This new ad format usually pays highly satisfactory CPMs (could range from $3 – $10). Mobile video ads give more opportunities for marketers to engage with their customers. Ad sizes could vary. Choose something that blends well with your website design.

mobile video ad units

4) IAB’s Mobile Rising Stars

In the recent Mobile Rising Stars initiative by the Interactive Advertising Bureau, participants were judged on the ad formats they submitted for their potential to drive brand creativity on mobile at scale. Some interesting mobile ad units are as follows:

  • filmstrip
  • pull
  • adhesion banner
  • full page flex
  • slider

Important update from Google’s Algorithm for Mobile

google implements mobile-friendly tag on search results

Google favors mobile-optimized sites than those that are not. Last February, Google announced its plan of factoring in ‘mobile-friendliness’ into the search rankings. This means that publishers with mobile-unfriendly sites — those with elements too close or too small, would risk losing their top spot in Google’s search results on mobile devices. Take advantage of this incentive though, by making your site mobile-optimized. Period.

Related Read: 3 Tips in Smart Mobile Site Design

MonetizeMore publishes a series of annual best practices, ad units and sizes, and top optimization strategies for both mobile and desktop publishers. Subscribe to us to keep up-to-date with important trends and news.

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Kean Graham

CEO and Founder at MonetizeMore

Kean is the resident expert in Ad Optimization covering areas like AdSense Optimization, DFP Management, and third-party ad network partnerships. Kean believes in the supremacy of direct publisher deals and holistic optimization as keys to effective and consistent ad revenue increases.

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