Should You Use Facebook Ads Or Google Ads For Your Ecommerce Business?

Written by Katie Switzer | Dec 2, 2025 2:00:21 PM

Whether you are currently running digital ads or thinking about it, you need to consider all the pros and cons for using different advertising platforms.

As the two largest advertising platforms, Google Ads and Facebook Ads are surprisingly different both in function and targeting. 

Ecommerce businesses can be profitable with both, but you will want to consider whether one or both should get your advertising budget, and how much.

To help you make critical advertising decisions, we’re going to lay out the critical differences between the two. The interesting part of this comparison is that these platforms are surprisingly complementary, rather than adversarial. 

In other words, you need to use both to get the best advertising results.

Placements Available on Facebook Ads and Google Ads

One of the main differences between Facebook Ads and Google Ads is the type of placements available.

Placements are where purchased advertising space will appear to your desired audience. This can be in social media, apps, email, paid search, websites, videos, or other places where audiences spend time online.

Google Ads Placements: Paid Search and Display Network

Google Ads has an audience of people searching, which is a huge portion of their advertising placements. Running an ad on Google Ads can end up in a multitude of places, not just paid ads at the top of search results.

In addition to paid search, your ads can be placed on the following Display Network targets:

  • Websites.
  • YouTube Channels.
  • YouTube Videos.
  • Apps.
  • App Categories.
  • Gmail.

Facebook Ads Placements: Paid Social

Facebook’s main audience is people actively using social media platforms. They offer placements both on their Facebook and Instagram platforms, and also through their Messenger service and Audience Network. This offers a powerful and wide variety of placement options which is great for flexibility.

Facebook ads can appear on any of the following four platforms:

  1. Facebook
  2. Instagram
  3. Facebook Messenger
  4. Facebook Audience Network

Facebook Placements:

  • Newsfeed;
  • Marketplace;
  • Video feeds;
  • Right column;
  • Stories;
  • In-stream videos;
  • Search results.

Instagram Placements:

  • Newsfeed;
  • Explore;
  • Stories.

Facebook Messenger Placements:

  • Inbox;
  • Stories;
  • Sponsored messages.

Audience Network Placements:

  • Third party apps.

Comparing Placements in Facebook Ads and Google Ads

The key difference in audiences between Facebook Ads and Google Ads is that Google audiences tend to already be searching or otherwise have shown some intent to purchase.

Facebook audiences are generally social, so purchases from Facebook placements will be more impulse or interest buyers and not searching with intent.

Audience Size

In 2021, Facebook is estimated to have 2.39 billion active users over the world. These users are regularly scrolling their news feed or using other areas of the Facebook app that can display your brand’s ads.

Google users make approximately 5.6 billion searches per day. Each of those searches is an opportunity to use paid search ads to target people searching with intent to buy.

Affordability

Over $X billion of ad spend for Wicked Reports clients, we've found that average e-commerce metrics in 2025 follow these approximate industry benchmarks:

 

Facebook

Google

CPC (cost per click)

Average CPC is around $1.72 CPC is higher, around $2.69

CPL (cost per lead)

average CPL near $27.66  average CPL near $70.11

CAC (customer acquisition cost)

   

 

The majority of our clients are ecommerce brands, so this gives you a great benchmark for your own brand. 

If you aren’t achieving these results, or you just want to get better, then you might want to consider getting your own Wicked Reports dashboard. 

Book a free demo here to find out if we can help improve your brand’s ROI.

Advanced AI Capability

Facebook Targeting Expansion AI

Facebook is incredibly powerful in their audience specificity. You can target very specific niches down to incredible granularity. 

This can be both a blessing and a curse. Meta's AI-Driven Campaigns (e.g., Advantage+) Meta (Facebook/Instagram) is aggressively pushing Advantage+ Shopping Campaigns. These AI-driven setups are designed to use the full power of their machine learning engine, often outperforming manually structured campaigns. The current best practice is to lean into these automated solutions by feeding the AI high-quality data and giving it broad parameters to optimize performance.

Google’s Machine Learning Engine

Google’s greatest strength is its incredible Machine Learning engine. Google does not need a short lease - you need to let this engine run free with by keeping your campaign targeting broad. This gives the AI more data to work with so you can get the best benefit from Machine Learning.

Scalability

Both Google and Facebook ads are highly scalable with a little bit of experience. Media buyers will want to pay attention to things like audience size, bidding method, frequency ads are seen, and regularly supplying fresh creative.

Short Term vs Long Term Advertising Performance

Over the short time, Facebook consistently performs better. People clicking on Facebook social ads tend to impulse buy, they are seeing ads in their feed to remind them to buy, and so they tend to convert faster.

In the long term, Google Ads consistently get higher ROI than Facebook Ads. This is because Google buyers are already searching with intent. They tend to buy over and over again, rather than just one-time impulse buys. This results in higher overall customer lifetime value (LTV). 

Because it’s costly to bring in new customers, focusing on LTV results in greater ROI over time.

How To Decide Whether to Use Facebook Ads vs Google Ads and How Much To Spend 

If you are reading this article, it is likely that you need to use a combination of Facebook Ads and Google Ads to get the best advertising ROI for your brand.

As discussed above, each platform has its strengths and weaknesses, but both can be used complementary to get incredible results.

That just leaves the question of: How much should you spend on each? 

The answer is going to be unique to every brand.

Warm vs Cold Traffic

Facebook is known as being exemplary in bringing in cold traffic that converts quicker, while Google tends to take longer to convert but with better ROI over time.

This is why the two fit together like puzzle pieces in creating the optimal strategy for your brand. Use Facebook to grow your and retarget your audience, and Google to target people searching with intent. 

Compare Campaigns Not Channels

The best way to decide is not to look at your overall channel results, but instead to look at individual campaign results from both ad platforms.

The problem with this is that if you are comparing results from inside the ad managers, they are going to be taking credit for some of the same sales. This is bad data to make decisions on.

You need a third party, unbiased data source for your ROI on campaigns that gives fair credit to where each sale is due.

That is exactly what we do here at Wicked Reports.

We take data from all sources, including advertising platforms and your CRM, and then provide performance data that’s accurate.

Accurate, multi-touch marketing attribution gives you clear performance at each step of your funnel, for every channel and campaign, which makes it easy to determine which campaigns are working and which ones are not.

Want to learn more about how accurate attribution can improve your ROI?

Book a free demo of our Wicked multi-touch marketing attribution dashboard here.

FAQ

Which advertising platform is best for quick, short-term sales?

Facebook Ads generally performs better over the short term. Its social nature and reliance on impulse buying mean customers convert faster than on Google, which targets higher-intent, slower-converting searchers.

Why is multi-touch marketing attribution essential when using both Google Ads and Facebook Ads?

Using a multi-touch attribution solution, like Wicked Reports, is vital because both platforms will otherwise take credit for the same sales, leading to inaccurate data. Multi-touch attribution provides an unbiased, third-party view to accurately assign ROI to each campaign.

How does the audience intent differ between Google Ads and Facebook Ads?

Google Ads audiences are typically high-intent, actively searching for a product or solution. Facebook Ads audiences are generally lower-intent social browsers, meaning purchases are driven more by interest, impulse, and discovery.