EO Mini Pro 3 vs Simpson & Partners Home 7: Compact vs Built to Last

The Pocket Rocket vs the British Heavyweight

These two chargers couldn't look more different on paper. The EO Mini Pro 3 has made its name as the smallest home charger on the market — literally the size of an A5 notepad — while the Simpson & Partners Home 7 is a premium, UK-manufactured unit built from anodised aluminium with a 10-year enclosure warranty that dwarfs anything else in the market. Yet both sit in a remarkably similar price bracket, both charge a Tesla or any other Type 2 EV perfectly well, and both offer smart tariff support for cheaper overnight charging.

So why might you be choosing between them? If you've got a tight installation space — perhaps a narrow garage wall or a spot where a bulky charger would look out of place — the EO Mini Pro 3 is calling your name. But if you're fitting a charger to the front of your house and want something that looks premium, lasts a decade, and could even support three-phase power down the line, the Simpson & Partners Home 7 makes a compelling case. Let's dig into the details.

In a nutshell:

• EO Mini Pro 3 (£699): The smallest charger on the market with solar diversion included as standard and British Gas/Hive ecosystem integration.
• Simpson & Partners Home 7 (£649): A premium UK-built charger with a 10-year enclosure warranty and three-phase capability at a lower price.

Spec Comparison

Power and Charging Speed

On a standard UK single-phase supply — which covers the vast majority of British homes — these two chargers perform almost identically. The EO Mini Pro 3 delivers 7.2kW while the Simpson & Partners Home 7 offers 7kW. In practical terms, the difference is negligible. Charging a typical 60kWh Tesla Model 3 battery from empty would take roughly 8.3 hours on the EO versus about 8.6 hours on the Simpson & Partners. Either way, you're plugging in after dinner and waking up to a full battery.

Where the Simpson & Partners Home 7 pulls ahead dramatically is its three-phase capability. If your property has a three-phase supply — or if you're planning an upgrade — the Home 7 can deliver a full 22kW, slashing that same charge to around 2.7 hours. At £649, three-phase support at this price point is genuinely unusual. The EO Mini Pro 3 is single-phase only, so if three-phase matters to you now or in the future, the decision is straightforward.

Smart Tariff Integration and Solar

Both chargers support scheduled charging and smart tariff presets, which is where the real savings happen. Pair either with a tariff like Octopus Go (7.5p/kWh between 00:30 and 04:30) and you could charge a Tesla Model 3 for around £6 per full battery — roughly 210 miles of range for the price of a pint. The EO Mini Pro 3 supports Octopus Go and EDF Go Electric among others, while the Simpson & Partners Home 7 covers Octopus Go, OVO Anytime, and EDF GoElectric. Both have you covered for the most popular UK EV tariffs.

The EO Mini Pro 3 has a notable edge on solar integration. It comes with CT clamps included as standard, enabling solar diversion straight out of the box — no extra hardware to purchase. As eocharging.com explains, the charger will use your solar generation first and supplement with grid energy on cloudy days. The Simpson & Partners Home 7 is listed as solar compatible, but the data doesn't indicate that CT clamps or equivalent hardware are included. If you've already got solar panels on your roof — or plan to install them — the EO's bundled solar diversion is a genuine money-saver.

The EO also benefits from its integration with the British Gas/Hive ecosystem. According to hivehome.com, the Hive Power+ feature credits back up to 25% of your charging costs, and their SmartCharge tool automatically finds the cheapest times to charge. That's a meaningful perk if you're already a Hive household, though it does tie you into the British Gas ecosystem.

App and Connectivity

The EO Mini Pro 3 is the clear winner on connectivity options. It offers Wi-Fi, Bluetooth, and Ethernet as standard, with an optional 4G add-on for properties with poor broadband. As electrifying.com notes, the Ethernet connection makes it one of the most reliably connected chargers on the market — no more dropped Wi-Fi sessions mid-charge. The Simpson & Partners Home 7 relies on Wi-Fi alone, which is perfectly adequate for most homes but could be frustrating if your charger is at the far end of a long driveway.

On the app front, both chargers offer the essentials: start/stop charging, scheduling, and energy monitoring. Neither app is considered best-in-class — the EO app is described as no-nonsense but functional, while the Simpson & Partners app is noted as functional but not as refined as competitors like Ohme or Tesla. For most users, both will do the job without complaints.

Build Quality and Design

This is where the Simpson & Partners Home 7 truly shines. Built in the UK from anodised aluminium, it feels like a premium product — and it's backed by a 10-year enclosure warranty that's the longest on the market by a considerable margin. It's worth noting that this warranty covers the enclosure specifically rather than all internal electronics, but even so, it's a statement of confidence in the build quality. Multiple finish options are available, including Accoya wood and distinctive colours, giving you design flexibility that most chargers simply don't offer.

The EO Mini Pro 3 takes a different approach. At just 215mm × 140mm × 100mm and weighing roughly 2.5 kg, it's genuinely tiny — electrifying.com describes it as the same size as an A5 notepad. The thermoplastic construction is tough and weatherproof but doesn't have the same premium feel as the Simpson & Partners' aluminium. Its 3-year warranty is industry average. If kerb appeal matters, the Simpson & Partners is the charger your neighbours will compliment. If invisibility is the goal, the EO disappears on your wall.

Price and Value

The Simpson & Partners Home 7 is £50 cheaper at the unit level, which isn't a game-changing difference. But when you factor in what you get for that lower price — anodised aluminium construction, a 10-year enclosure warranty, and three-phase capability — the value proposition is genuinely impressive. The EO Mini Pro 3 justifies its slightly higher price with bundled CT clamps for solar diversion and superior connectivity options (Ethernet and optional 4G). If you have solar panels, the EO's included CT clamps could save you £50–£100 on additional hardware, effectively levelling the price.

Who Should Buy Which?

Buy the EO Mini Pro 3 if:

• You have limited wall space and need the smallest possible charger
• You already have solar panels and want solar diversion included out of the box
• You're in the British Gas/Hive ecosystem and want the Power+ 25% cashback
• You need Ethernet or 4G connectivity for a reliable connection
• You value a compact, unobtrusive installation above all else

Buy the Simpson & Partners Home 7 if:

• You want the longest warranty on the market and plan to stay in your home long-term
• You have (or plan to get) a three-phase supply and want 22kW charging capability
• You prefer premium build quality with UK-manufactured aluminium construction
• Aesthetics matter and you want design options like Accoya wood finishes
• You want to spend less upfront while getting a charger that could genuinely last a decade

Our recommendation: For most UK homeowners on a standard single-phase supply, the Simpson & Partners Home 7 offers the better overall package. It's £50 cheaper, built from superior materials, backed by a warranty that's more than three times longer than the EO's, and it future-proofs you for three-phase power. The EO Mini Pro 3 earns its place if space is genuinely constrained, if you need solar diversion without buying extra kit, or if you're already embedded in the Hive smart home ecosystem. Both are solid chargers — but the Simpson & Partners' combination of build quality, warranty length, and three-phase support at £649 is hard to argue with.

Read our full EO Mini Pro 3 review or Simpson & Partners Home 7 review.

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