Mobile & App Performance Statistics

Mobile is the largest channel worldwide by traffic, but it converts lower than desktop. In B2B, desktop counts even more heavily. These figures show what to actually steer on: speed and usability on every screen.

Last updated: June 14, 2026 · 8 verified statistics

TDK

Tanguy De Keyzer Oprichter & digitale strateeg

51,6% Share of global web traffic that comes from mobile phones Mobile phones alone account for more than half of all web traffic worldwide. Add tablets and the mobile share is even higher. For B2B that share is usually lower, but it's also growing steadily. Source: DataReportal (Digital 2026) (2026)

2,0% Average conversion rate on mobile, versus 3.4% on desktop Desktop converts roughly 75% better than mobile. Mobile traffic is large, but revenue per visit is smaller there. In B2B that strengthens the case for a smooth desktop experience. Source: Contentsquare (Digital Experience Benchmark 2026) (2026)

65,7% Share of global web traffic that comes from mobile, versus a third from desktop Worldwide, two thirds of traffic comes through mobile and about a third through desktop. In B2B, traffic leans more heavily on desktop, especially during office hours, but ignoring mobile isn't an option. Source: SimilarWeb (2026)

53% Of mobile visitors bounce if a page takes longer than 3 seconds to load Speed isn't a minor detail on mobile, it's a conversion lever. Slow pages lose visitors before they even see your offer. Source: Google (2018)

62% Share of mobile sites with a good load speed (LCP under 2.5 seconds) Load speed remains the biggest obstacle on mobile. Nearly four in ten mobile sites load the main element too slowly, exactly where visitors drop off. Source: Web Almanac (HTTP Archive) (2025)

48% Share of mobile websites that pass all three Core Web Vitals More than half of mobile sites fail Google's baseline standards for load speed, interactivity and stability. Source: Web Almanac (HTTP Archive) (2025)

56% Share of desktop sites that pass all Core Web Vitals Desktop structurally outperforms mobile on performance standards. The gap shows where mobile optimization pays off most. Source: Web Almanac (HTTP Archive) (2025)

2:20 Average session duration on mobile, versus 4:46 on desktop Mobile visitors scan faster and have less patience: their sessions last roughly half as long. Your message and call-to-action must be clear immediately. Source: Contentsquare (Digital Experience Benchmark 2026) (2026)

What do these figures mean for Belgian B2B companies?

These figures tell two things at once. Mobile is the largest channel worldwide, but it converts lower, and in B2B desktop still carries more weight. That’s no reason to ignore mobile. Worldwide, two thirds of traffic comes through mobile, and decision-makers often research first on their phone before making a request later on desktop. A slow or sloppy mobile experience costs you precisely in that first phase.

The biggest lever is speed. Google finds that more than half of mobile visitors bounce beyond 3 seconds, and less than half of mobile sites pass Core Web Vitals. That’s where most Belgian B2B companies have concrete room to win, since speed improves both your conversion and your visibility in Google. So don’t steer on a nice mobile score for its own sake, but on a site that loads fast on every screen and smoothly guides visitors toward a conversation. Start with your Core Web Vitals and see how professional website development makes your site faster and more usable.

Frequently asked questions

Should a B2B company still invest in mobile if desktop matters more? +

Yes. Desktop counts more heavily in B2B, especially during office hours, but worldwide two thirds of traffic comes through mobile. Decision-makers often research first on their phone and convert later on desktop. A slow or clunky mobile site already loses you ground during that research phase.

Does page speed really matter that much for conversion? +

On mobile, definitely. Google finds that 53% of mobile visitors bounce beyond 3 seconds of load time, and the Web Almanac shows that only 62% of mobile sites achieve a good load speed. Speed is one of the few levers that improves both your conversion and your search visibility.

What are Core Web Vitals and why do they matter? +

Core Web Vitals are Google's performance standards for load speed, interactivity and visual stability. They affect both your Google ranking and your visitor's experience. Only 48% of mobile sites pass them, so this is where most B2B sites have concrete room to win.

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Source: Customer Impact, Mobile & App Performance Statistics, https://www.customerimpact.be/en/marketing-statistics/mobile-performance/

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