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Fashion · head to head

Bold Metrics vs Sizebay

Bold Metrics logo

Bold Metrics

Fashion

AI body data for apparel sizing

From
On request
Rated
-
Full reviewWebsite
Sizebay logo

Sizebay

Fashion

AI-powered sizing and fit recommendation platform

From
€250/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Bold Metrics sold to apparel brands as an embedded API rather than as a tool a shopper or small seller can use; Sizebay no pricing information published on vendor website
  • They diverge on capability: Bold Metrics covers AI body prediction, Sizebay covers AI sizing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Bold Metrics and Sizebay actually diverge.

Attributes where Bold Metrics and Sizebay differ
AttributeBold MetricsSizebay
Starting priceOn request€250/month
Pricing modelusage-basedsubscription
PlatformsWeb, ApiWeb
Founded20142017

Identical on both: free tier (No), user rating (Not yet rated), category (Fashion).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bold Metrics

  • AI body prediction
  • Size recommendations
  • Body measurements
  • Returns analytics
  • Product development data
  • Manufacturing specifications
  • Consumer insights
  • Fit analytics

Only in Sizebay

  • AI sizing
  • Fit recommendations
  • Return analytics
  • Customer insights
  • Encryption
  • Authentication
  • German language support

Both cover

  • Shopify
  • Magento
  • Cloud deployment
  • Web support
  • English language support

What people use each for

The jobs each tool is most often brought in to do.

Bold Metrics

  • Size recommendations on an apparel product pagenot Sizebay
  • Reducing returns caused by fitnot Sizebay
  • Body measurement estimation without a scannot Sizebay
  • Made-to-measure sizing through Virtual Tailornot Sizebay
  • Fit analytics across a cataloguenot Sizebay

Sizebay

  • Sizingnot Bold Metrics
  • Return reductionnot Bold Metrics

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bold Metrics

  • Sold to apparel brands as an embedded API rather than as a tool a shopper or small seller can use
  • Pricing is not published
  • Split across several named products, including Smart Size Chart, Virtual Sizer and Virtual Tailor, so scope depends on which are licensed

Sizebay

  • No pricing information published on vendor website
  • Requires scheduling a demo to obtain pricing details
  • No public pricing tiers or subscription information disclosed

Pricing, plan by plan

Bold Metrics

On request
  • Smart Size$undefined/month
    • Size recommendations
    • Basic analytics
    • E-commerce integration
  • Smart Body$undefined/month
    • Full body measurements
    • Product development data
    • Advanced analytics
  • Enterprise$undefined/month
    • Everything included
    • Custom AI models
    • Manufacturing data

Sizebay

€250/month
  • Startup$250/month
    • AI sizing
    • Basic analytics
  • Professional$500/month
    • All features
    • Custom integration

Which should you pick?

Choose Bold Metrics if

  • You need ai body prediction.
  • You work on Web, Api.
  • You also want size recommendations.
Bold Metrics review

Choose Sizebay if

  • You need ai sizing.
  • You also want fit recommendations.
Sizebay review

Questions people ask

Is Bold Metrics or Sizebay better?
Neither clearly leads. Bold Metrics starts at On request and Sizebay at €250/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bold Metrics or Sizebay?
Bold Metrics starts at On request and Sizebay at €250/month.
Does Bold Metrics or Sizebay run on more platforms?
Bold Metrics runs on Web, Api. Sizebay runs on Web.
What is Bold Metrics best used for?
Bold Metrics is most often used for size recommendations on an apparel product page, reducing returns caused by fit, body measurement estimation without a scan, made-to-measure sizing through virtual tailor. Of those, size recommendations on an apparel product page and reducing returns caused by fit are not what Sizebay is typically brought in for.
What can Bold Metrics do that Sizebay cannot?
Bold Metrics covers AI body prediction, Size recommendations, Body measurements, Returns analytics. Sizebay covers AI sizing, Fit recommendations, Return analytics, Customer insights. Both handle Shopify, Magento, Cloud deployment, Web support.

Answered from the vendors’ own pages

Bold Metrics: Why is Bold Metrics pricing not published online?

The website does not list pricing tiers or costs. Customers are directed to request a demo or connect with an expert to discuss pricing tailored to their needs.

Source
Sizebay: How much does Sizebay cost?

Sizebay does not publish pricing information on its website. To obtain pricing, customers must schedule a demo or contact regional offices in North America, Europe, Latin America, or other regions via email to discuss pricing and implementation details.

Source
Bold Metrics: How do I get in touch about pricing and trials?

Bold Metrics offers 'Request a Demo' and 'Connect with an Expert' calls-to-action on their website. Potential customers must reach out through these channels to learn about pricing and trial options.

Source
Sizebay: What is Sizebay's pricing model?

Sizebay operates with a custom pricing model determined through direct vendor consultation. The company provides solutions tailored to specific business needs, with pricing discussed during demo scheduling or regional office contact.

Source
Bold Metrics: Is there a minimum contract term?

No information about contract terms, minimum commitment, or pricing is disclosed on the website. These details would be discussed during a consultation with the sales team.

Source
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