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Shopify Mobile Optimisation Checklist

Over 70% of e-commerce traffic comes from mobile. Use this 69-point checklist to ensure your store delivers a flawless mobile experience.

69 items8 sections

Why Mobile Matters

Mobile devices account for 60-75% of e-commerce traffic and over 50% of transactions. Yet many stores still treat mobile as secondary to desktop. This checklist covers the eight critical areas that separate mobile-optimised stores from those losing revenue to poor mobile experience.

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Mobile Design Fundamentals

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Mobile Navigation

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Mobile Product Pages

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Mobile Checkout

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Mobile Speed

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Mobile Forms & Input

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Mobile-Specific Features

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Testing & Validation

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The Business Case for Mobile-First

True mobile optimisation means designing specifically for how people actually use phones: one-handed operation, thumb-driven navigation, limited attention whilst multitasking, and variable network conditions.

Mobile Revenue Opportunity

Consider a store with:

  • •50,000 monthly visitors (35,000 mobile, 15,000 desktop)
  • •Mobile conversion: 1.8%, Desktop conversion: 3.5%
  • •Average order value: £65

Current revenue: Mobile £40,950 + Desktop £34,125 = £75,075 monthly

Improving mobile conversion to 2.5%: Mobile £56,875 + Desktop £34,125 = £91,000 monthly (£191,100 additional annually)

Key Mobile Metrics to Track

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Page load on 4G mobile
44px
Minimum touch target size
16px
Minimum readable text size

Common Mobile Issues

  • ×Tiny touch targets that require precision tapping
  • ×Slow page loads from unoptimised images and scripts
  • ×Complex forms requiring extensive typing
  • ×No express checkout forcing full form completion

High-Impact Mobile Improvements

Focus on these changes for the greatest mobile conversion impact:

1. Enable express checkout

Shop Pay, Apple Pay, and Google Pay bypass form filling entirely. This single change can lift mobile conversions by 30-50%.

2. Sticky Add to Cart button

Keep the Add to Cart button visible as users scroll through product details. Removing this friction increases add-to-cart rates.

3. Optimise images for mobile

Serve appropriately sized images. A 2000px hero image loaded on a 375px screen wastes bandwidth and slows load times.

4. Increase touch target sizes

Ensure all buttons, links, and form elements are at least 44x44 pixels. Test with your thumb, not your mouse cursor.

Related Checklists

Mobile optimisation works best alongside these improvements:

Speed Optimisation →

Comprehensive performance improvements for all devices

Checkout Optimisation →

Reduce cart abandonment on mobile and desktop

Product Pages →

Optimise product pages for mobile conversions

Conversion Optimisation →

Comprehensive CRO across your entire store

Frequently Asked Questions

Mobile accounts for 60-75% of e-commerce traffic globally, though conversion rates traditionally lag desktop. However, the gap is narrowing. Mobile conversion rates now reach 2-3% compared to desktop's 3-5% for well-optimised stores. Given mobile's traffic dominance, even slightly lower conversion rates still means mobile drives significant revenue. Stores ignoring mobile optimisation leave substantial money on the table.
Several factors contribute: smaller screens make browsing and form-filling harder, mobile networks are slower and less reliable creating frustration, users are often on-the-go with limited attention, trust signals are less visible on small screens, and many stores still treat mobile as an afterthought. However, stores that truly optimise for mobile (fast load times, simple navigation, express checkout, large touch targets) achieve mobile conversion rates approaching desktop.
For most Shopify stores, focus on mobile web optimisation first. Mobile web reaches everyone immediately without app downloads, works across all devices, requires less maintenance, and integrates seamlessly with marketing campaigns. Only consider a native app if you have a loyal customer base making frequent repeat purchases, unique features requiring native functionality, or budget for ongoing app development and maintenance. Many successful e-commerce businesses never build apps.
Use Chrome DevTools device emulation for initial testing (free, covers many devices and network conditions), run Google PageSpeed Insights mobile tests (free, real-world data), check Google Mobile-Friendly Test (free), use BrowserStack or similar services for real device testing (paid, comprehensive), ask friends and family to test on their devices (free, provides real user feedback). At minimum, test on one iOS device and one Android device with real 4G connections.
If forced to choose one: implement express checkout options (Shop Pay, Apple Pay, Google Pay). These single-tap checkout solutions bypass form filling entirely, which is the biggest mobile friction point. Data shows express checkout can increase mobile conversion rates by 30-50%. Combined with fast page loads and large touch targets, express checkout transforms mobile from a necessary evil to a competitive advantage.
Yes. Google uses mobile-first indexing, meaning they primarily crawl and index the mobile version of your store. If your mobile site is slow, has thin content, or provides poor user experience, your search rankings suffer, even for desktop searches. Mobile page speed is a direct ranking factor. Core Web Vitals are measured on mobile. Mobile-friendly sites rank higher in mobile search results. Mobile SEO is not optional; it is fundamental.

Need Mobile Help?

Our team can audit your mobile experience and implement improvements that boost conversions.

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