The 30-second answer
- Small or starting store, simple SKU model: Wix. Cheaper, easier setup, design-led.
- B2B or wholesale anywhere in your model: BigCommerce. Native B2B is decades ahead of Wix.
- Multi-channel (Amazon + eBay + Walmart + retail): BigCommerce. Native channel sync wins.
- Greenfield headless, expecting scale: BigCommerce. Catalyst + GraphQL is built for it.
- Already on Wix, under $250K/yr, going headless: stay on Wix.
1. Cost over 3 years
For a store at 50,000 monthly visitors and ~$250K/year revenue:
| Cost | Wix headless | BigCommerce headless |
|---|---|---|
| Platform plan | Business VIP $59/mo | BC Plus $105/mo |
| Bridge / hosting | Trama Pro $49/mo | Vercel Pro $20/mo |
| Framework | $0 (Trama SDK) | $0 (Catalyst) |
| Engineering setup | ~80 hrs × $100 = $8K | ~100 hrs × $100 = $10K |
| Maintenance over 3 yrs | ~80 hrs × $100 = $8K | ~100 hrs × $100 = $10K |
| 3-year total | $19,888 | $24,500 |
BigCommerce is ~25% more expensive at this revenue. Beyond $400K/year BigCommerce auto-tiers to Pro at $399/mo — cost gap widens fast. The break-even is around $100K/year, above which BigCommerce's feature set starts justifying the premium.
2. B2B capability gap
This is the most lopsided category — BigCommerce wins by daylight.
| Capability | Wix | BigCommerce B2B Edition |
|---|---|---|
| Customer groups + tiered pricing | ~ Apps only | ✓ Native |
| Quote management | ✗ | ✓ |
| Net terms + invoice payment | ✗ | ✓ |
| Buyer roles + multi-user accounts | ✗ | ✓ |
| Customer-specific catalogs | ✗ | ✓ |
| ERP integration patterns | ~ Custom build | ✓ Documented |
If your business is even 20% B2B, BigCommerce will save you a year of building these primitives. The B2B Edition is bundled into Plus and Pro — no separate fee.
3. Headless maturity
Both are production-ready. The difference is shape:
| Dimension | Wix Headless | BigCommerce Headless |
|---|---|---|
| API style | REST (Stores API) | GraphQL (Storefront) |
| Official starter | Velo / SDK templates | Catalyst (Next.js) |
| Webhook coverage | Good | Excellent |
| Rate limits (storefront) | ~50 rps/token | ~150 rps/store |
| Multi-storefront support | ✗ | ✓ Native |
4. Multi-channel selling
BigCommerce ships native channel integrations: Amazon, eBay, Walmart, Meta, TikTok, Google Shopping, in-store POS. Inventory and orders sync without third-party middleware. Wix supports Meta + Instagram and Amazon (limited) via apps; anything more requires a custom integration or a tool like Channable / Codisto layered on top.
If you sell on three or more channels, this single difference can be the entire reason to choose BigCommerce — even with its higher base cost.
5. Performance & SEO
Identical-content stores tested mobile, throttled 4G, median of six rounds:
| Metric | Wix headless | BigCommerce headless |
|---|---|---|
| Lighthouse (mobile) | 94 | 95 |
| TTFB (cached) | 112 ms | 108 ms |
| LCP | 0.9 s | 0.9 s |
| CLS | 0.02 | 0.02 |
With proper edge caching, performance is indistinguishable. Choose on features, not Lighthouse.
6. Decision rule
Q1: Any B2B in your business?
If yes → BigCommerce. Stop here.
Q2: Selling on 3+ channels with inventory sync?
If yes → BigCommerce. Stop here.
Q3: Already on Wix, under $250K/year?
If yes → stay on Wix, go headless. Don't migrate.
Q4: Greenfield D2C, expect to scale past $500K/year?
If yes → BigCommerce. If no → Wix.
7. Frequently asked questions
Is BigCommerce better than Wix for B2B?
Yes. BigCommerce has native B2B features — customer groups, price lists, quote management, net terms — built in on the B2B Edition. Wix can do basic B2B with apps but lacks the depth. If your business is even partly B2B, BigCommerce wins.
How much does BigCommerce cost vs Wix?
Wix: $14–$59/mo (Business / Business VIP). BigCommerce: $39–$399/mo (Standard / Plus / Pro). BigCommerce also has revenue-based tiering — exceed $50K/$180K/$400K/year and you auto-upgrade. Wix has no transaction-volume tier. For sub-$50K stores Wix is cheaper; above that BigCommerce becomes competitive.
Which is better for headless: Wix or BigCommerce?
BigCommerce was headless-first — its Storefront API and Catalyst (Next.js starter) are mature and well-documented. Wix Headless arrived later but is now production-ready for most stores. For greenfield headless on a known-large catalog, BigCommerce. For existing Wix sites going headless, stay on Wix.
Does BigCommerce charge transaction fees?
No, BigCommerce charges zero platform transaction fees on any plan. You only pay the payment processor (Stripe, PayPal, etc.). Wix also charges zero transaction fees beyond the processor. This is a wash between the two.
Should I migrate from Wix to BigCommerce?
Migrate if: you need real B2B, you're selling on 3+ channels (Amazon, eBay, Walmart) and need native sync, or you've outgrown Wix's product/SKU model. Don't migrate just for headless — both platforms now support it competently. Migration cost is real: 2-4 months engineering + $5-30K in data and SEO transfer.
Can Wix and BigCommerce both be used headless with React?
Yes — both expose Storefront-style APIs that work with any React framework (Next.js, Remix, Gatsby). The shape of the data differs (BigCommerce GraphQL vs Wix REST), but a bridge layer like Trama normalizes both behind a single TypeScript API.
See your store on either.
Trama bridges Wix today; BigCommerce ships next quarter. Same SDK, same canonical schema — switch platforms without rewriting your frontend.