Tools in Microsoft Advertising for creating, editing, and optimizing ad campaigns
Hi Sunshinecc,
You can return to the Advanced Targeting Options > Devices screen to exclude smartphones from your campaign. You can do this by modifying your smartphone bid to "decrease by 100%." This will set your smartphone bids to zero, effectively excluding smartphones from your campaigns.
Tablet traffic and PC traffic are generally similar enough that we currently don't support excluding tablet traffic altogether. We have a Bing Ads FAQ about Device Targeting that explains this more in depth.
We are always looking for ways to improve our product. Why are you interested in excluding tablets from your campaigns?
Thanks for sharing your feedback with us,
Haily De La Cruz
Program Manager // Campaign Management // Bing Ads