Picking a POS system is easy to get wrong in a very specific way: buying hardware that's a great fit for someone else's shop. The right system depends heavily on how you actually sell, not just what's popular.
Start with your transaction pattern, not the hardware
A single-till boutique with a handful of daily sales has very different needs from a fast-moving retail counter handling a sale every couple of minutes. High-throughput counters benefit most from a fast barcode scanner and a reliable receipt printer with an auto-cutter — the terminal itself matters less than the speed of the whole checkout flow.
Offline mode is not optional
Connectivity isn't always guaranteed. A POS system that stops taking sales the moment the internet drops is a real business risk, not a minor inconvenience. Look for offline mode that queues transactions locally and syncs automatically once connectivity returns — this should be a baseline requirement, not a premium feature.
Inventory sync saves more time than it seems
If stock counts are still reconciled manually at the end of the day, a POS system with real-time inventory sync pays for itself quickly. Every sale updates stock automatically, and if you run multiple locations, that visibility extends across branches instead of living in separate spreadsheets.
Match the cash drawer to your till discipline
A POS-triggered cash drawer sounds like a minor detail until a mismatched till becomes a daily argument. Make sure the drawer's trigger mechanism (usually RJ11 from the receipt printer) is compatible with the terminal and printer you're pairing it with — this is one of the most common mismatch issues we see in DIY setups.
Plan for growth from day one
Adding a second till or a second location later is far easier if the first system was set up with centralized reporting in mind. Retrofitting that after the fact usually means a full re-platform rather than a simple add-on.
The most reliable way to avoid buying the wrong setup is to walk through a typical hour of trading with whoever's actually going to be behind the counter — the gaps in a spec sheet tend to show up fast once you do.