Open your store's analytics and look at the device split. For most fashion and beauty webshops, the large majority of visitors arrive on a phone — yet most owners still design, test and judge their store on a big desktop screen. That gap is where sales quietly leak. Here are the seven mobile mistakes I see most often, and how to check your own store for each in minutes.
1. Tap targets made for a mouse, not a thumb
Tiny menu links, size selectors packed shoulder to shoulder, a close button on a pop-up that takes three attempts. On desktop it looks neat; on a phone it is a dexterity test your customers didn't sign up for. The check: use your own store one-handed, with your thumb, on a moving train if possible. Every mis-tap you make, your customers make too — and some of them just leave. Buttons and links need comfortable size and space around them, especially size and colour selectors on product pages.
2. The pop-up ambush
A discount pop-up at second three. A cookie banner covering half the screen. A chat bubble floating over the buy button. A newsletter modal that triggers again because the first close button was missed. Each one made sense alone; stacked together on a small screen, the customer can't see the product they came for. The check: open your store in a private window on your phone and count how many things you must dismiss before you can shop. More than one is too many.
3. Product photos that can't be zoomed or swiped
On mobile, photos are the product inspection — there's no shelf to pick the item up from. Stores still ship galleries that don't swipe, images that can't be pinch-zoomed, or photos so compressed the fabric texture turns to mush. For fashion and beauty especially, where texture, shade and finish decide the purchase, this is fatal. The fix: swipeable galleries, working zoom, and honest image quality — sharp, but compressed enough to load fast.
4. A checkout that asks for everything, twice
Long forms are annoying on desktop; on mobile they're a wall. Forced account creation, fields that could be one line split into four, no support for autofill or address lookup, a keyboard that covers the field being typed in. The check: complete a real test order on your phone and count the fields and the minutes. Then ask which fields you truly need before payment (fewer than you think) — email, address, payment. Everything else can wait or go entirely. Turn on the express payment options your platform offers; for many phone shoppers, one thumb-press beats any form.
5. Sticky bars that eat the screen
A sticky header, a sticky 'sale ends soon' bar above it, a sticky add-to-cart bar below, a cookie notice — suddenly a third of a small phone screen is furniture, and the product is peeking through a letterbox. Sticky elements can genuinely help (a reachable buy button is good), but every sticky element has to earn its pixels. The check: screenshot your product page on a phone and measure how much space is left for the actual product. If the answer embarrasses you, remove the least useful bar.
6. Desktop-weight pages on mobile data
A homepage that loads a multi-megabyte hero video, twelve tracking scripts and full-size imagery might survive office Wi-Fi — but your customer is on 4G in a café. Mobile speed isn't a technical nicety; it's the difference between browsing and bouncing. The check: run your key pages through PageSpeed Insights and read the mobile score, then test on your own phone with Wi-Fi off. If it feels slow to you, it feels slower to a stranger with less patience.
7. Text written for a brochure, squeezed onto a phone
Dense paragraphs, tiny grey type, product descriptions pasted from a supplier's PDF. On mobile, people scan: short lines, clear headings, the key facts — material, fit, shipping, returns — findable in seconds. If the answer to 'when will it arrive?' or 'can I return it?' is buried, the customer doesn't dig; they open a competitor's tab. The fix: put delivery and returns one thumb-tap from every product page, and write descriptions in short, scannable chunks with the important words where eyes land first.
Start with the free test
None of these need a developer to find. Buy something from your own store, on your phone, over mobile data, start to finish — and write down every moment of friction. That list, in order of annoyance, is your mobile roadmap. Fix the top two and you'll usually feel the difference before you touch the rest.