EO Mini Pro 3 vs EVEC VEC03: The £181 gap explained

£369 versus £550 — and what the gap buys

The EVEC VEC03 is the cheapest OZEV-approved smart charger you can buy in the UK. At £369, it undercuts almost everything on the market. The EO Mini Pro 3 costs £550 — £181 more — and its main claim is physical: at 215 × 140 × 100 mm, it is the smallest home charger available. Both are tethered, both carry 5-metre cables, both have three-year warranties. The question is whether size or savings should win.

• EVEC VEC03 — £369, built-in RCD and PEN protection, cheapest installed cost in the catalogue. Software is the weak link.
• EO Mini Pro 3 — £550, barely larger than a hardback, solar CT clamp included, optional 4G. A premium for compactness and connectivity.

The EVEC's install advantage is real

The VEC03 packs a Type A RCD with 6 mA DC leakage detection and PEN fault protection inside the unit. Most other chargers — the EO included — require an electrician to fit these components in the consumer unit, typically adding around £100 to the install bill. So the EVEC is not merely £181 cheaper at the till. Installed, the gap stretches closer to £280.

For grant-eligible buyers — renters and flat owners — the arithmetic tilts further. The £500 OZEV grant covers the VEC03's £369 unit price outright and chips into the install costs. The EO Mini Pro 3 is also OZEV-approved, but at £550 the grant leaves £50 still to pay for the unit alone, before installation.

When the EO Mini Pro 3 earns its price

There are two scenarios where £550 makes sense. The first is physical. A narrow garage pillar, a recessed alcove beside a front door, a wall where nothing wider than 140 mm will sit flush — the EO fits where others cannot. The VEC03, at 320 × 193 × 105 mm, is a perfectly normal-sized charger, but "perfectly normal" is not always small enough. If your wall is the constraint, the EO is often the only option that works.

The second is the British Gas ecosystem. The Hive Power+ version of the EO Mini Pro 3 credits back 25 per cent of charging costs on the EV Power+ tariff. That is a structural rebate no other charger offers, and over a year of typical mileage it narrows the £181 gap meaningfully. Outside the British Gas world, that advantage vanishes.

The EO also includes a CT clamp for solar diversion in the box — a feature the VEC03 supports but sells separately. If you have panels and want basic surplus-energy charging without buying extra hardware, the EO is tidier. For serious solar users who want granular control, though, neither charger competes with the myenergi Zappi GLO — and that comparison is covered separately.

Software: neither charger excels

This is the honest part. Both apps draw complaints. The VEC03's scheduling has been reported as intermittent over Wi-Fi, and the charger lacks any direct smart-tariff API — it is not on Intelligent Octopus Go's compatible list, and there is no OVO Charge Anytime hook. You can set a manual schedule for fixed-window tariffs like Octopus Go (00:30–05:30 at 8.5p/kWh), and that works well enough. But if your tariff moves by the half-hour — Octopus Agile, for instance — neither of these chargers can follow it.

The EO's app is more polished, with tariff presets for Octopus Go, EDF GoElectric, and others. It also has an ethernet port alongside Wi-Fi and Bluetooth, with optional 4G for locations where wireless is unreliable. The VEC03 offers Wi-Fi, Bluetooth, and ethernet but no 4G fallback. If your driveway is at the far end of a thick-walled house, that could matter.

Anyone whose priority is tariff-chasing intelligence should look at the Ohme Home Pro at £535 — less than the EO, and with direct API links to variable tariffs that neither charger here can match.

The verdict

Buy the EVEC VEC03 if:

• Budget is the deciding factor — £369 plus lower install costs makes it the cheapest compliant route onto your wall
• You are grant-eligible and want the £500 OZEV allowance to cover the unit and eat into installation
• You charge on a simple fixed-window tariff and need scheduling, not optimisation

Buy the EO Mini Pro 3 if:

• Your mounting space is genuinely tight — under 200 mm wide or in an awkward recess
• You are on British Gas Hive Power+ and the 25 per cent cashback applies to you
• You have solar panels and want the CT clamp included rather than sold separately

For most buyers — those with a standard wall, a standard tariff, and a standard desire to spend as little as possible — the VEC03 is the right charger. It is not glamorous. Its app needs patience. But at £369 installed with built-in protection, nothing else in the catalogue comes close on cost. The EO is a good charger solving a specific problem. Make sure you have that problem before paying £181 to solve it.