How do I make sure my store actually works well on mobile, not just looks fine on desktop?
Design and test on your phone first: the large majority of Indian D2C traffic is mobile, and a big share of Tier 2/3 buyers never touch a desktop at all. Put add-to-cart, search and menu within easy thumb reach, offer a one-page or accordion checkout with UPI/Cards/COD visible upfront, and never make someone pinch-zoom to read a product description. Test the actual checkout flow on a mid-range Android phone on 4G, not your iPhone on office WiFi - that's the experience most of your customers will actually have.
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NN/g is the most respected independent UX research lab in the world, and mobile checkout is where most D2C stores quietly lose the sale - this is the research-backed version of 'make checkout easy,' not opinion.
The stat that should change how you build your store: Tier 2/3 buyers now drive a majority of new D2C orders in India and many skip desktop entirely - this rounds up the current numbers so 'mobile-first' isn't just a slogan on your build checklist.
Written for Indian 4G conditions and Indian Shopify stores specifically, with a real before/after case study - a Delhi store's mobile PageSpeed went from 32 to 78 and mobile conversion nearly doubled. Concrete proof that speed work pays for itself here.