Choosing the right epos system for your retail business can feel a bit like trying to pick a favourite child: if your children were all sleek pieces of hardware that promised to make your life easier but occasionally confused you with their pricing structures.
If you're running a shop in the UK, you've likely narrowed your search down to the "Big Three": Shopify, SumUp, and Epos Now. Each one has its own personality, its own strengths, and, let’s be honest, its own quirks. At What EPOS, we’ve spent a lot of time testing these systems so you don’t have to. Whether you’re a tiny boutique or a scaling multi-site retailer, getting the best pos system in place is the foundation of your success.
In this guide, we’re going to break down how these three titans compare, so you can stop scrolling and start selling.
Why Your Choice Matters More Than Ever
Before we dive into the nitty-gritty, it's worth asking: what is the difference between POS and EPOS? In short, an EPOS (Electronic Point of Sale) system is the modern, connected version of the old-school till. It doesn't just take payments; it manages your stock, tracks your customers, and tells you exactly which products are gathering dust on the shelves.
For UK retailers in 2026, a basic cash register just won't cut it. You need a retail pos system that connects your physical store with your online presence and gives you the data to make smart decisions.
SumUp: The King of Simplicity
If you’re just starting out: maybe you’ve got a pop-up shop or a small market stall: SumUp pos is often the first name that comes to mind. We love SumUp for its "no-nonsense" approach. There are no monthly contracts, and you basically pay for the hardware and a flat transaction fee.
The Pros of SumUp
- Low Barrier to Entry: You can get a card reader for a very small upfront cost.
- Simple Pricing: You only pay when you sell. This makes it arguably the cheapest pos system for very low-volume sellers.
- Portability: Their devices are tiny and work brilliantly over 4G or Wi-Fi.
The Cons of SumUp
- Limited Features: As your business grows, you'll find SumUp a bit thin on the ground. Its inventory management is basic at best.
- Transaction Costs: While there's no monthly fee, the transaction percentage can add up quickly if you're doing high volumes. You might want to check how much SumUp charges per transaction before committing.
The Verdict for SumUp: Great for the "side-hustle" or the very small mobile retailer, but perhaps not the robust solution a growing high-street shop needs.
Shopify POS: The Ecommerce Giant
If you already have a thriving online store powered by Shopify, then Shopify pos seems like a no-brainer. It’s designed to bridge the gap between your website and your physical shop perfectly.
The Pros of Shopify POS
- Unified Inventory: If someone buys your last jumper online, it instantly updates the stock in your physical shop. No more awkward "sorry, we're out of stock" phone calls.
- Customer Profiles: You can see a customer's entire history, whether they bought from you in person or on their phone at midnight.
- Clean Interface: It’s very intuitive. If you can use an iPad, you can use Shopify POS.
The Cons of Shopify POS
- Cost: To get the best features (like local pickup or advanced reporting), you need the "Pro" version, which comes with a hefty monthly subscription fee on top of your Shopify web plan.
- Hardware Limitations: While it works on iPads, getting a full "retail till" setup can become expensive and a bit "Frankenstein" with different components.
The Verdict for Shopify: If your business is "online-first," it’s a strong contender. But for dedicated brick-and-mortar retail, the costs can spiral.
Epos Now: The All-Rounder for UK Retailers
Now, we come to the heavyweight. In our opinion, if you are serious about growing a retail business in the UK, the Epos Now till system is incredibly hard to beat. It sits in that "Goldilocks" zone: more powerful than SumUp, but often more cost-effective and retail-focused than Shopify.
We’ve written a very detailed Epos Now review for 2026 that explains why it continues to lead the pack.
Why We Recommend Epos Now for Retail
- Specialised Retail Software: Unlike some systems that try to do everything for everyone, Epos Now has a dedicated retail mode. It handles complex stock (like different sizes and colours) with ease.
- Scalability: Whether you have one shop or ten, the system handles multi-site management effortlessly.
- Powerful Integrations: From accounting software like Xero to Zapier POS integrations, it connects to the tools you already use.
- Hardware Quality: Their 15.6" water-resistant touchscreens are built for the reality of a busy shop floor.
The Verdict for Epos Now: It is consistently our top pick for UK retailers who need a professional, scalable, and reliable system. You can read our full thoughts on their latest features in our Epos Now till system review.
Head-to-Head: Comparison Table
| Feature | SumUp | Shopify POS | Epos Now |
|---|---|---|---|
| Best For | Micro-businesses | Omnichannel Sellers | Retail & Hospitality Pros |
| UK Support | Standard | Good (mainly online) | Excellent (UK based) |
| Inventory | Basic | Advanced (with Pro) | Top-tier / Automated |
| Monthly Fee | £0 (usually) | ££ (requires Shopify plan) | Competitive Monthly/Upfront |
| Scalability | Low | Medium/High | High |
Key Considerations for UK Business Owners
When you're opening a shop in the UK, you have to think about more than just the price of the card reader. According to industry experts at Forbes Advisor, the total cost of ownership includes software updates, hardware durability, and: most importantly: customer support.
1. Ease of Use
You don't want to spend three days training every new staff member. We find that Epos Now and Shopify are the leaders here. Their interfaces are modern and don't look like they were designed in the 90s.
2. Stock Management
This is where Epos Now really shines. It allows for "low stock" alerts and can even automate your purchase orders. For a retail business, cash is tied up in stock; if you don't manage it well, you're losing money. If you're comparing them directly, check out our guide on Epos Now vs SumUp vs Shopify for a deeper dive into the stock features.
3. UK-Specific Needs
Ensure your system handles VAT correctly and integrates with UK banks. All three systems do this well, but Epos Now’s UK-based support is a massive plus when things go wrong on a busy Saturday afternoon.
Our Final Recommendation
If you’re still feeling stuck, here is our "rule of thumb":
- Choose SumUp if: You sell at markets once a week and don't have much stock to track.
- Choose Shopify POS if: 80% of your sales happen through your website and you just need a simple way to take payments in person occasionally.
- Choose Epos Now if: You are a dedicated retail shop, you want to grow, and you need the absolute best inventory and reporting tools available in the UK.
Honestly, we’ve seen Epos Now transform small shops into local empires. The level of detail you get in your sales reports is a game-changer for profitability. If you’re ready to take the leap, we highly recommend checking out the latest deals and features in our comprehensive Epos Now review.
Take Action Today
Don't let "analysis paralysis" stop you from upgrading your business. A better pos system isn't just an expense; it's an investment that pays for itself through better efficiency and fewer mistakes.
If you want the most robust, retail-ready solution on the market, your next step should be to look at Epos Now. You can find everything you need to know about their current pricing and hardware options right here in our Epos Now till system review.
Still unsure? Browse through our other epos till systems reviews to see how other brands like Toast or Square stack up. But for the average UK retailer, Epos Now is usually the winner for a reason.
Ready to upgrade? Read the full Epos Now review here and see why it’s our top-rated system for 2026.