On mobile, a link bar is somewhat equivalent to having the main categories showing directly in your desktop header menu.
A bit of data…
Growth Rock saw a 5% increase with 93% statistical significance by adding a Link Bar.
This article mentions two case studies done on link bars:
- Case study 1: 5% increase in completed orders with 93% statistical significance.
- Case study 2: 29% increase in orders with 98% significance
According to a pretty old study (2013), content placed above the fold grabs 80% of our attention.
And an eyetracking study by Nielsen Norman group found that 102% more attention is paid to information above the fold, compared to that placed below the fold.
So it’d be fair to assume that the impact of having a link bar is going to be higher than that of a categories section below the fold.
My advice is this:
- Put your link bar right below your header and feature some of your main product categories.
- Note that if your link bar is scrollable, only the visible items (without scrolling) are likely to have an increase in visits.
- Something to test is to then have a couple of rows in your link bar.