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Home Guide Mobile First Design: What it is and How to Implement it

Mobile First Design: What it is and How to Implement it

By Jash Unadkat, Community Contributor -

Mobile first design is important for customer engagement. Mobile devices are at the forefront of the digital revolution that has taken place in the last decade. With approximately 54% of overall web traffic coming from mobile devices, a mobile-first approach has taken hold of the marketplace. 

global mobile website traffic from 2012 to 2022

Image Source

Widespread usage of mobile devices to access the web has led to new development methods like mobile-first design which encourages mobile-friendly web design. This guide will help you incorporate the mobile first design strategy for building device-friendly apps and websites that keep mobile user experience a priority.

What is Mobile-First Design?

Mobile-first design or Mobile-first approach enables web designers to start product design for mobile devices first. This can be done by sketching or prototyping the web app’s design for the smallest screen first and gradually working up to larger screen sizes. 

Prioritizing design for mobiles makes sense as there are space limitations in devices with smaller screen sizes, and teams need to ensure that the key elements of the website are prominently displayed for anyone using those screens. 

Designing and developing for small screens compels designers to remove anything that isn’t necessary for seamless website rendering and navigation. 

How Mobile-First Design Strategy Came To Be?

Earlier, websites were often developed with the assumption that they would be primarily accessed from desktops. Eventually, developers made an attempt to modify these websites by cutting down some functions to enhance browsing on mobile or tablet devices. 

This approach of scaling down the websites is popularly known as Graceful Degradation or Desktop-First approach.

  • A downside to this approach is that several web elements do not adapt well to smaller screen sizes. Consequently, this degrades the visual appearance of websites on smaller devices.

To address this problem, developers came up with another approach – Progressive Advancement or Mobile-First Design.

  • A mobile-first approach encouraged designers to begin the website designing process for the smallest devices first and then add more functionalities for bigger screen sizes.

Why is Mobile-First Design Critical?

Mobile devices have become an integral part of the present web landscape and will continue to be vital for the future as well. As mentioned in the beginning, mobile contributes to approximately half of the overall web traffic.

One must also bear in mind that the number of mobile users has surpassed desktop users. As per Statcounter GlobalStats, overall mobile users continue to grow with a leading market share of 60.43% as compared to desktop users.

statcounter Mobile First Market Share WorldwideSmartphone Usage Statistics addresses a few stats to reconsider the mobile-first approach:

  1. Smartphone users tend to spend an average of 3 hours and 15 minutes on their phones.
  2. Millennials spend more than 5.7 hours on their smartphones per day
  3. People check their phones 58 times a day on average

The stats above clearly reveal how users across the globe are slowly shifting from desktops to mobile devices. Naturally, it would make sense for web designers to prioritize their efforts and follow the “mobile-first” rule in product design.

How to Implement Mobile-First Approach in Product Design?

Now let’s understand how designers can bring mobile-first responsive design into practice. 

Let’s assume a web designer needs to work on a website for a restaurant. Since the designer needs to follow the mobile-first approach, they must think about what a user will expect from a restaurant website on a mobile device. 

Designers must identify the primary things that an end-user is looking for while accessing a restaurant website on a mobile device. Given the user is on mobile, it would be safe to assume that they are mainly searching for – operating hours, exact location, and contact details (or click to call button given it’s mobile). On the basis of these assumptions, the page can be designed precisely as follows.

mobile first design approachSource

In the case of tablets, users have more space and probably more time to explore the website. Designers can leverage this by adding more functionalities or information regarding the food menu (images), or chef details as displayed below:

mobile first design screen

When it comes to desktops, web designers have all the required space to showcase more details. These details can include blog posts, images of party events recently hosted,  the ambiance, or contact forms to promote the restaurant better.

design example

Following the approach above will help designers build websites keeping the mobile audience in mind. Additionally, expanding functionalities for larger screen sizes will also be easy to accomplish for teams.

Best Practices for The Mobile-First Approach

For complex and layered designs, web designers UI/UX experts must bear in mind the following best practices to ensure a mobile-first approach effectively:

1. Prioritize Page Content 

When it comes to mobile-first design, designers must bear in mind the fact that content is the key. As there are space restrictions on smaller screens, web designers must ensure that the most critical elements are prominently displayed since those are the ones users will actively look for. 

2. Deliver Intuitive Navigation

Intuitive navigation is of utmost importance when it comes to delivering a neat and clean user experience on mobile devices. Web designers can leverage features like navigation drawers (using Hamburger menus) to display secondary elements of the website. This will help users to find the necessary information easily. 

Speed and intuitiveness go hand in hand. SpeedLab by BrowserStack instantly provides you Page Speed Score out of 100 for both Desktop and Mobile platforms. With these insights, your design team can optimize for a mobile-friendly interface across different mobile devices and browsers.


With BrowserStack, you also get actionable recommendations and insights to improve your overall design and website layout.

The report generates accurate mobile and desktop scores along with key metrics like Navigation Timing API, Page Resource Summary, and more, to help you align your mobile-first design approach with actual performance.

SpeedLab Design Recommendations

3. Avoid Disruptive Pop-ups 

As mentioned frequently, mobile devices have space constraints and no user likes to be accosted with sudden pop-ups or advertisements taking over the screen. Website owners or designers must only focus on what’s important for users and provide them with the things they are looking for in the first place. 

4. Test on Real Devices Under Real Conditions

The most effective way of ensuring that a website delivers optimal user experiences across devices is by testing them on real devices. This helps designers verify whether the website renders as expected across mobiles, tablets, and desktops. BrowserStack’s real device cloud provides teams and individual testers with 3000+ real devices and browsers for instant testing in real user conditions.

You can opt for both BrowserStack Live and App Live to conduct extensive cross-browser testing and interactive app testing to satisfy mobile-first design implementation.  

BrowserStack Real Device Cloud

BrowserStack also offers individual users or teams an intuitive Responsive Checker tool. This tool allows users to instantly view their websites across different device types like mobiles, tablets, and desktops. This enables users to verify whether their websites render correctly as expected on specific devices.

Responsive by BrowserStack

How to run a responsive test on BrowserStack?

  1. Enter the URL of the website that is being tested.
  2. Once you sign in, you can enter the website URL and click Check to test responsiveness.
  3. When a particular device is selected, the user will get a view of what the site looks like on it.

Use BrowserStack Responsive Testing


Increasing numbers of web users across the globe have shifted from desktop to mobile devices for accessing the web and the trend shows no sign of stopping. Consequently, it makes sense for designers to develop websites keeping the mobile audience as a priority.

Incorporating a mobile-first design will not only help businesses reap the rewards of mobile growth today but will also prepare them for the explosive growth that is predicted in the coming years.

Automated UI Testing Mobile Testing Responsive UI Testing

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