Klaviyo and HubSpot are both excellent platforms, but they were built for different primary audiences. Comparing them requires understanding that you are not choosing between two email marketing tools — you are choosing between two fundamentally different approaches to marketing technology.
Klaviyo is a specialist. It does ecommerce email and SMS marketing with remarkable depth. HubSpot is a generalist. It does marketing, sales, service, and CRM across a broad range of business types. The right choice depends on whether you need depth in ecommerce marketing or breadth across your entire business operation.
I have deployed both platforms for ecommerce brands and have clear views on where each delivers the most value. This comparison is written from a practical standpoint for UK ecommerce businesses evaluating their marketing technology stack.
Platform positioning
Klaviyo is purpose-built for ecommerce. Every feature — segmentation, automation, templates, analytics — is designed around ecommerce data models. Products, orders, carts, browsing behaviour, and customer lifecycle stages are native concepts within the platform. Klaviyo does one thing exceptionally well: ecommerce email and SMS marketing.
HubSpot is an all-in-one platform covering marketing (email, landing pages, SEO, social media, ads), sales (CRM, deal pipelines, meeting scheduling), and service (ticketing, knowledge bases, live chat). HubSpot pioneered the inbound marketing methodology and builds its platform around attracting, engaging, and delighting customers across the entire lifecycle.
The positioning difference creates a clear pattern: Klaviyo excels at ecommerce-specific marketing depth, while HubSpot excels at cross-functional business breadth. Neither is wrong — but most ecommerce brands do not need HubSpot's full breadth, and most businesses needing that breadth do not need Klaviyo's ecommerce depth.
Shopify integration
Klaviyo's Shopify integration is the gold standard in the email marketing space. It syncs in real time: customers, orders, products, collections, browse behaviour, cart events, and checkout data. The integration is maintained as a first-party priority by Klaviyo's engineering team. On-site events are captured automatically — product viewed, added to cart, checkout started, order placed — and immediately available as automation triggers and segmentation criteria.
HubSpot's Shopify integration has improved significantly over recent years. It now syncs customer data, order history, products, and abandoned carts. However, it does not match Klaviyo's depth for real-time behavioural tracking, predictive ecommerce analytics, or product-level segmentation sophistication. The integration feels like a bridge between two platforms rather than a native connection.
For Shopify-first businesses — which is most of our readership — the quality of the Shopify integration significantly impacts what you can achieve with your email marketing. Deeper integration enables more precise segmentation, more relevant automation triggers, and better product recommendations. For more on maximising your Shopify email strategy, see our Klaviyo email marketing services.
Email marketing and automation
Klaviyo automation (Flows)
Klaviyo's flow builder is specifically designed for ecommerce sequences. Pre-built templates cover every standard ecommerce automation: welcome series, abandoned cart, browse abandonment, post-purchase, win-back, price drop, back-in-stock, birthday, and sunset. Each template includes best-practice timing, trigger logic, and content suggestions derived from ecommerce performance data.
Flow triggers are ecommerce-native: placed order, started checkout, viewed product, added to cart, fulfilled order, and custom events. Conditional splits can use any combination of customer properties, purchase history, and predictive metrics. For a practical guide, see our article on seven Klaviyo flows every store needs.
HubSpot automation (Workflows)
HubSpot's workflow builder is powerful and flexible. It supports complex branching logic, multiple trigger types, CRM property updates, task creation, deal stage changes, and cross-object actions. For sophisticated multi-step nurture sequences, lead scoring, and sales-marketing alignment, HubSpot's automation is exceptional.
For ecommerce-specific automations, HubSpot can create abandoned cart, purchase follow-up, and product-based workflows through its Shopify integration. However, setting up ecommerce-specific flows requires more manual configuration than Klaviyo, and the ecommerce trigger options are less granular. Browse abandonment, in particular, requires additional setup compared to Klaviyo's one-click implementation.
Segmentation and personalisation
Klaviyo's segmentation for ecommerce is unmatched. You can create segments based on any combination of purchase behaviour (bought product X, not bought Y, average order value above threshold, ordered more than three times), browsing behaviour (viewed collection Z in the last 14 days), predictive metrics (predicted CLV above value, predicted churn risk is high), and engagement data (opened email in last 30 days, clicked specific link). Segments update in real time.
HubSpot's segmentation is powerful across broader criteria — contact properties, form submissions, page views, email engagement, deal stage, company attributes, and lifecycle stage. For segmenting by marketing funnel position, lead score, or sales interaction history, HubSpot excels. For segmenting purely by ecommerce behaviour, HubSpot's capabilities are less granular than Klaviyo's.
The practical implication: Klaviyo lets you send the right email to the right customer based on precisely what they have bought, browsed, and are predicted to do next. HubSpot lets you orchestrate communications across a broader customer journey that may include ecommerce, content, and sales interactions.
CRM capabilities
This is where HubSpot has an undeniable advantage. HubSpot's CRM is one of the most capable in the market, with contact management, company records, deal pipelines, task management, meeting scheduling, calling, and comprehensive activity tracking. The free CRM alone provides substantial functionality for managing customer and prospect relationships.
Klaviyo does not include CRM capabilities. It maintains customer profiles with ecommerce data, but it is not a CRM in the traditional sense — there are no deal pipelines, no sales task management, no meeting scheduling, and no sales team features.
For ecommerce brands with sales teams (B2B wholesale, high-value custom orders, enterprise accounts), HubSpot's CRM is genuinely valuable. For pure DTC ecommerce brands where the sales process is entirely self-service, Klaviyo's customer profiles provide the data you need without CRM complexity you do not.
Pricing comparison
The pricing difference between Klaviyo and HubSpot is substantial and often decisive.
Klaviyo pricing
Klaviyo pricing is contact-based with all features included on every paid plan. Free up to 250 contacts. Approximately £16/month for 500 contacts, scaling to approximately £130/month for 10,000 contacts. No feature gating — you get the same segmentation, automation, and analytics at every tier.
HubSpot pricing
HubSpot's pricing is complex. The Marketing Hub alone ranges from £15/month (Starter, limited features) to £700+/month (Professional, full automation) to £2,900+/month (Enterprise). Critical ecommerce features like advanced automation workflows, A/B testing, and custom reporting require Professional or above. Adding Sales Hub, Service Hub, and other modules increases costs further.
For an ecommerce brand with 10,000 contacts wanting comparable automation capabilities, Klaviyo costs approximately £130/month. HubSpot Marketing Hub Professional with comparable features costs approximately £700/month — over five times more. The cost difference is significant and often the deciding factor for pure ecommerce brands. For a broader view of where your marketing budget should go, see our guide on what a Shopify build should cost.
Content and inbound marketing
HubSpot was built around the inbound marketing methodology — attract visitors with content, convert them with landing pages and forms, close them with nurture sequences, and delight them with great service. The platform includes a blog CMS, landing page builder, SEO tools, social media management, and content strategy features.
Klaviyo does not include content marketing, blogging, SEO tools, or social media management. It is focused purely on owned-channel marketing — email and SMS — directed at people who have already engaged with your brand.
For brands investing heavily in content marketing, SEO, and inbound lead generation alongside ecommerce, HubSpot provides a unified platform for the entire strategy. For brands where content marketing happens through separate tools (or through their SEO and Shopify platform), Klaviyo's focused approach avoids paying for capabilities managed elsewhere.
SMS marketing
Klaviyo provides integrated SMS marketing alongside email within the same platform. SMS and email flows can be combined, triggered by the same events, and sent to segments defined by the same customer data. UK mobile numbers are supported with PECR-compliant consent management.
HubSpot does not offer native SMS marketing with the same depth. SMS capabilities are available through integrations and add-ons but are not as deeply integrated into the automation workflow as Klaviyo's native implementation.
For ecommerce brands using SMS as a marketing channel — which is increasingly effective for cart recovery, order updates, and promotional campaigns — Klaviyo's native SMS integration is a meaningful advantage.
Reporting and analytics
Klaviyo's reporting is ecommerce-focused: revenue per email, revenue per recipient, attributed revenue by flow, conversion rates, and benchmarking against similar brands. The dashboard clearly shows email marketing's contribution to total store revenue.
HubSpot's reporting is broader: marketing attribution across channels, content performance, SEO rankings, social media engagement, deal pipeline metrics, and custom report builders. For understanding the full marketing funnel — from first website visit to closed deal — HubSpot's reporting is more comprehensive.
For ecommerce-specific ROI analysis, Klaviyo provides more immediately useful data. For cross-channel marketing attribution and sales-marketing alignment reporting, HubSpot is superior. For insights on what to track, see our guide on ecommerce analytics setup.
Scalability and growth
Both platforms scale effectively, but in different directions. Klaviyo scales ecommerce marketing depth — handling larger contact lists, more complex segmentation, and higher email volumes while maintaining ecommerce-specific capabilities. The platform supports brands from startup to enterprise scale within the ecommerce domain.
HubSpot scales business breadth — adding sales automation, customer service tools, operations features, and CMS capabilities as your organisation grows. For businesses that evolve from pure ecommerce to include B2B, services, or complex sales processes, HubSpot grows with you across functions.
UK considerations
Both platforms support UK businesses with GBP pricing, GDPR compliance tools, and PECR-compliant consent management. Klaviyo prices in GBP for UK customers. HubSpot prices in GBP for UK customers through its UK entity.
Both platforms provide support during UK business hours. HubSpot's support quality generally improves with higher-tier plans. Klaviyo provides consistent support across all paid plans. Both have UK-based and European teams for customer success and account management, and both support web design and development projects for UK brands.
The verdict
Choose Klaviyo if:
- Ecommerce (especially Shopify) is your primary business model
- Email and SMS are your main marketing channels
- Deep ecommerce segmentation and predictive analytics are valuable
- Budget is a consideration — Klaviyo is dramatically cheaper for comparable email capabilities
- You do not need CRM, sales pipeline, or content marketing tools in the same platform
- Ecommerce revenue attribution is your primary reporting need
Choose HubSpot if:
- Your business combines ecommerce with B2B, services, or complex sales processes
- You need CRM, sales pipeline management, and marketing in one platform
- Content marketing, SEO, and inbound lead generation are core strategies
- You need cross-functional reporting across marketing, sales, and service
- Budget is less of a constraint than platform consolidation
- Your team spans marketing and sales functions that need shared data
For most DTC ecommerce brands on Shopify, Klaviyo is the clear winner. It provides deeper ecommerce marketing capabilities at a fraction of HubSpot's cost. HubSpot is the better choice for businesses with complex organisational needs that extend well beyond ecommerce email marketing. For deeper insights into building your email strategy, our guide on retention versus acquisition covers the strategic foundations.
If you are evaluating marketing platforms for your ecommerce brand, get in touch. We will help you choose the right tool for your specific situation — including recommending HubSpot if it genuinely fits your needs better.