Device Bid Adjustments | Mobile Versus Desktop
Mobile, desktop and tablet users do not behave the same. Two people searching the same keyword on different devices may be searching with different intent, and conversion rates diverge noticeably.
The behavioural difference is real
Mobile users are generally more hurried and search more locally; they want to call now, get directions or find a quick answer. Desktop users sit longer, compare options and are more willing to complete a long form.
The difference varies by sector. In local services most conversions come from mobile; in complex B2B sales first contact may start on mobile and finish on desktop. Applying a general rule without seeing your own data is wrong.
Weak performance is not always a bidding problem
When mobile conversion rate looks low, the first instinct is to lower bids. But the cause is usually not bidding, it is the mobile experience.
A slow page, buttons hard to tap, a form that breaks on mobile, text that cannot be read — these lower conversions and are not fixed by bid adjustments. Lowering the bid hides the problem; landing page optimisation solves it. I verify the mobile experience is genuinely sound before touching bids.
When the conversion path splits
In some businesses users research on mobile and buy on desktop. Mobile then does not produce the conversion directly but starts the chain.
Cutting mobile bids based only on last click breaks that chain. Device decisions made without looking at attribution reports frequently turn out wrong.
Interaction with smart bidding
Smart bidding already uses the device signal and evaluates it in every auction. So manual device adjustments are unnecessary in most accounts.
Manual intervention is justified when there is an operational fact measurement cannot see: for instance if an action is not supported on mobile at all. Otherwise leaving the algorithm free performs better.
How do we start? First I map your conversion distribution by device and test your mobile experience. I clarify whether the problem is bidding or experience and send the plan in writing. You can reach me from the contact page.
Frequently Asked Questions
Should tablets be managed separately?
In most accounts tablet volume is too low to produce meaningful data. If volume is high, looking separately makes sense.
Why does cost per click differ on mobile?
Competition varies by device; in some sectors the mobile auction is more crowded. Because fewer ads are shown on mobile, reaching the top can also cost more.
Can I target desktop only?
Technically yes, but in most sectors the majority of searches come from mobile; turning it off means turning off most of your volume. If the problem is the mobile experience, the fix is to repair it.