The verdict in three sentences
Conversion is won on three levers: many sharp photos (+30%), visible social proof (+18%) and a light page that loads in under 3 seconds on 3G. The copy must answer three questions in order — benefit, specs, delivery — before the thumb scrolls away. Past 1.5 MB of page weight, you bleed sales without noticing.
What tips a page into a sale
Every element on a product page has a production cost and a measurable conversion gain. The priority is not to do everything, but to do first what pays most per franc invested. Here are the 2026 orders of magnitude.
| Page element | Conversion gain | Production cost | Priority |
|---|---|---|---|
| 5+ photos (vs 1) | +25 to +30% | 10,000-25,000 FCFA | Very high |
| Short product video | +20 to +35% | 25,000-75,000 FCFA | High |
| Displayed customer reviews | +18% | Free (collection) | Very high |
| Structured description | +12 to +15% | 5,000-15,000 FCFA | High |
| Delivery/return badge | +8 to +10% | Free | Medium |
| Zoomable gallery | +6 to +9% | Included in build | Medium |
The two best gain/cost ratios are free or nearly so: customer reviews and the delivery badge. Always start there.
Page weight, the silent killer on 3G
A beautiful page that will not load does not convert. On a typical African 3G network, every second counts. Here is the impact of load time on conversion in 2026.
| Load time | Conversion impact | Target page weight |
|---|---|---|
| < 2 s | Baseline 100% | < 1 MB |
| 2-3 s | -10% | 1-1.5 MB |
| 3-4 s | -25% | 1.5-2.5 MB |
| 4-6 s | -40% | > 2.5 MB |
| > 6 s | -55% and more | not optimised |
The fix: WebP/AVIF images, lazy loading and a lightweight hosted video. You keep the visual richness without blowing up the weight.
Mini case study
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Emeka sells leather bags in Lagos with a 1.4% conversion rate on 6,000 visits/month, or 84 sales at 35,000 FCFA (2.94M FCFA). He goes from 1 to 6 photos, adds a 15-second video and shows 40 reviews. His conversion climbs to 2.0%, or 120 sales = 4.2M FCFA/month. Gain: 1.26M FCFA/month for a one-off investment of about 90,000 FCFA in photos and video.
FAQ
How many photos per product? Five minimum: front, back, material detail, in-use shot and scale. Going from 1 to 5+ photos adds up to 30% conversion in 2026.
Is a product video worth the cost? Yes: +20 to 35% conversion for 25,000 to 75,000 FCFA of production. On a high average order value, it pays back in a few sales.
How do I collect reviews when starting out? Send a WhatsApp message 3 days after delivery with a review link. Even 15-20 displayed reviews add up to 18% conversion.
What page weight should I target on 3G? Under 1.5 MB. Past 3 seconds of load time, conversion drops 25%, and 40% after 4 seconds.
Should everything go above the fold? Photo, price, buy button and delivery badge, yes. Detailed specs can follow lower down, but the main benefit must be visible without scrolling.
Become a Kolonell referral partner
A merchant whose product pages do not convert loses money every day. Refer them: our referral programme pays 15% + 5% recurring on a showcase site, 12% on e-commerce, 10% on a marketplace, 8% on institutional. A rebuilt e-commerce store at 2,000,000 FCFA earns you 240,000 FCFA.
Let's talk about your project. We audit your product pages and deliver a rebuild engineered to convert on 3G mobile. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
