EO Mini Pro 3 vs Andersen Quartz

The £149 between function and furniture

The EO Mini Pro 3 costs £523. The Andersen Quartz costs £672. Both deliver 7.2kW. Both include a CT clamp for solar diversion. Both will charge a typical EV overnight without drama. The £149 gap buys you four extra years of warranty, eleven colour finishes, and the kind of kerb appeal that makes a neighbour ask who installed it. Whether that matters depends entirely on you.

• EO Mini Pro 3 — the smallest mainstream charger on the UK market. A5-sized, functional, OZEV-approved. Buy it when the wall dictates the unit, not the other way round.
• Andersen Quartz — the entry-level Andersen. Seven-year warranty, IP65, design-led. Buy it when you want an Andersen A3 but not the £900 price tag.

What the EO does that the Quartz doesn't

Size. At 215 × 140 × 100 mm, the EO Mini Pro 3 is the only charger here that fits in spaces where nothing else will — a narrow garage pier, a recessed alcove beside a front door. The Quartz, at 286 × 172 × 110 mm, is still compact by market standards, but it is not solving the same problem.

The EO also carries confirmed OZEV approval. For eligible renters and flat owners, the £500 grant covers the £523 unit outright and chips into the install costs too. The Andersen Quartz is not confirmed on the current OZEV-eligible list. That is a significant distinction: if you qualify for the grant, the EO's installed cost could land well under £600, while the Quartz stays at £672 plus install — a real-world gap closer to £500 than £149.

Connectivity is another quiet advantage. The EO offers Wi-Fi, Bluetooth, Ethernet, and optional 4G. The Quartz has Wi-Fi and Bluetooth only. If the charger sits inside a detached garage with thick walls and patchy signal, the EO's wired Ethernet port is not a luxury — it is the difference between a smart charger and a dumb one.

What the Quartz offers for its premium

Warranty, primarily. Seven years against the EO's three. Over the life of an EV charger — typically a decade or more — that gap matters. If something fails in year five, EO owners are paying out of pocket; Andersen owners are not.

Design is the other half of the equation. Eleven standard finishes, with optional Accoya wood and carbon inserts, mean the Quartz can sit on a period-property wall without looking like a consumer electronics box bolted to the brickwork. The EO is discreet by virtue of being tiny; the Quartz is discreet by virtue of being considered. Different approaches, both valid.

The Quartz also integrates with Intelligent Octopus Go and OVO Charge Anytime — useful if you are on either tariff. The EO, via ev.energy, handles schedule-based tariffs like Octopus Go and EDF GoElectric well enough, but neither charger can chase half-hourly rates on Octopus Agile. Buyers on Agile should look at the Ohme Home Pro instead.

One practical note: the Quartz offers an 8.5-metre cable option for an extra £99, bringing the total to £771. The EO ships with 5 metres and has no longer option. If the parking spot is far from the consumer unit, the Quartz's cable reach may save the cost of a longer cable run in the install itself.

The app question

EO is retiring its own app and migrating users to ev.energy. That is not necessarily bad — ev.energy is a capable platform — but it means the software ecosystem you buy into today is not the one on EO's older marketing materials. The transition is worth understanding before you commit. Andersen's own app is stable, handles scheduling and session tracking, and has added integrations steadily since 2024. Neither app is exceptional; both do the job.

Which to buy

Buy the EO Mini Pro 3 if:

• Space is tight and no other charger physically fits your wall
• You qualify for the OZEV grant — the £500 covers the unit and part of the install
• You want Ethernet or 4G as a connectivity fallback

Buy the Andersen Quartz if:

• A seven-year warranty matters more than saving £149 upfront
• You want a charger that complements the house, not just serves the car
• You need the 8.5-metre cable option and would rather avoid a longer mains run

For most buyers, the EO Mini Pro 3 is the more rational purchase — cheaper, grant-eligible, and functionally equivalent at the socket. The Quartz is for people who have already decided they want an Andersen and are looking for the most affordable way in. That is a legitimate reason to spend £672, but it is a design reason, not an engineering one. If neither charger's specific strengths speak to you, the Tesla Wall Connector at £475 or the Wallbox Pulsar Max at £513 both deliver 7.4kW — fractionally faster — for less money.