Ohme Home Pro vs Simpson & Partners Home 7: Smart Savings or Built to Last?

Smart Tariff King vs British-Built Endurance: Which Charger Deserves Your Driveway?

These two chargers represent genuinely different philosophies in the UK home EV charging market. The Ohme Home Pro has built its reputation on software intelligence — its deep integration with smart energy tariffs like Octopus Intelligent Go means it can shave hundreds of pounds off your annual charging bill without you lifting a finger. The Simpson & Partners Home 7, meanwhile, is a premium British-manufactured unit that bets on hardware longevity, offering an anodised aluminium construction, a 10-year enclosure warranty, and the rare bonus of three-phase capability at a price that significantly undercuts rivals like the Andersen A3.

If you're choosing between these two, you're likely weighing up whether the Ohme's unrivalled smart charging software justifies its lower price, or whether the Simpson & Partners' superior build quality, longer warranty, and future-proof three-phase support make the extra £114 a worthwhile investment. Let's break it down.

In a nutshell:

• Ohme Home Pro (£535): The UK's smartest charger for automated off-peak charging — officially recommended by Octopus Energy and capable of delivering electricity at as little as 7p/kWh.
• Simpson & Partners Home 7 (£649): A premium, UK-manufactured charger with a 10-year enclosure warranty, distinctive design options, and three-phase support that most rivals at this price simply don't offer.

Spec Comparison

Smart Tariff Integration

This is where the Ohme Home Pro genuinely separates itself from nearly every other charger on the market — not just the Simpson & Partners. As wepoweryourcar.com notes, the Ohme's "advanced tariff integration" is its standout feature, with compatibility across almost all UK EV tariffs. Crucially, it's the charger officially recommended by Octopus Energy for their Intelligent Go tariff, which offers electricity at roughly 7p/kWh during extended off-peak hours. The charger communicates directly with Octopus's servers to find the cheapest 30-minute slots and automatically shifts your charging to those windows.

The Simpson & Partners Home 7 does support smart tariffs — including Octopus Go, OVO Anytime, and EDF GoElectric — but the integration isn't as deep or as dynamic. As viablepower.co.uk explains, the Ohme can adapt in real time: if energy prices spike unexpectedly during your usual charging window, it postpones charging until rates drop again. This dynamic, penny-pinching approach is something the Simpson & Partners app simply doesn't match in its current form.

To put real numbers on it: a typical Tesla Model 3 driven 7,400 miles per year uses roughly 2,114 kWh. On Octopus Intelligent Go at 7p/kWh via the Ohme, that's about £148 per year. On a standard variable tariff at around 24p/kWh, you'd pay £507. That's a potential saving of £359 annually — meaning the Ohme could pay for itself in under 18 months purely through tariff optimisation.

Power, Charging Speed, and Future-Proofing

On a standard UK single-phase supply, both chargers deliver very similar performance: 7.4kW from the Ohme and 7kW from the Simpson & Partners. In practice, that's the difference between adding roughly 26 miles of range per hour versus 25 — barely noticeable overnight. A 60kWh Tesla battery would take approximately 8.5 hours on either charger, well within a typical overnight window.

Where the Simpson & Partners pulls ahead is its three-phase capability. If your home has (or could be upgraded to) a three-phase supply, the Home 7 can deliver up to 22kW — slashing that same 60kWh charge to around 2.7 hours. Three-phase is uncommon in UK homes today, but it's increasingly relevant for new builds, rural properties, and anyone installing a home battery or significant solar array. The Ohme Home Pro is single-phase only, full stop. If future-proofing your electrical setup matters to you, this is a significant differentiator, as noted by mcnallyev.uk.

The Simpson & Partners also offers the flexibility of tethered or untethered versions — handy if you have multiple EVs with different cable preferences or simply prefer a cleaner wall-mounted look.

Build Quality, Design, and Connectivity

The Simpson & Partners Home 7 is genuinely impressive in the hand. UK-manufactured with an anodised aluminium enclosure, it feels like a piece of premium hardware. The multiple finish options — including Accoya wood and distinctive colours — give it a visual edge that most chargers can't match. That 10-year enclosure warranty is the longest in the market by a considerable margin, though it's worth noting this covers the enclosure specifically rather than all internal electronics.

The Ohme Home Pro is a more compact, lighter unit (3.5 kg vs 5.5 kg) with a colour LCD display that shows real-time charging status without needing to open the app. It's practical rather than beautiful, but it does the job neatly. Its IP65 rating edges out the Simpson & Partners' IP54, meaning the Ohme offers slightly better protection against water jets — relevant if your charger is fully exposed to British weather.

On connectivity, the Ohme has a clear advantage: built-in 4G with a three-year SIM included means it stays online even if your home Wi-Fi drops out. As viablepower.co.uk highlights, this reliability is "a game changer" for anyone relying on dynamic tariff switching. The Simpson & Partners relies solely on Wi-Fi, which is perfectly fine for most homes but less resilient if your router is far from the charger.

Price and Value

The Ohme comes in at £114 cheaper before installation, and the gap can widen to around £200 once you factor in the Simpson & Partners' potentially higher installation costs. For eligible renters and flat owners, the £350 OZEV grant applies to both, bringing the Ohme's total installed cost to as little as £585 — exceptional value for a charger this smart.

However, the Simpson & Partners' 10-year enclosure warranty means you're buying peace of mind that extends well beyond the Ohme's 3-year coverage. If you plan to stay in your home long-term and want a charger that still looks and functions beautifully a decade from now, that warranty has real monetary value.

Who Should Buy Which?

Buy the Ohme Home Pro if:

• You're on (or planning to join) Octopus Intelligent Go, Octopus Agile, or another smart EV tariff
• Minimising your per-kWh charging cost is your top priority
• You want built-in solar diverting without additional hardware
• Your Wi-Fi signal near the charger is weak — the 4G backup is invaluable
• You want the lowest total installed cost for a genuinely smart charger

Buy the Simpson & Partners Home 7 if:

• You value premium build quality and want a charger that looks distinctive on your wall
• A 10-year enclosure warranty matters more to you than cutting-edge software
• You have (or plan to install) a three-phase supply and want 22kW charging
• You prefer the flexibility of choosing between tethered and untethered versions
• You're looking for a premium alternative to the Andersen A3 at a significantly lower price

Our recommendation: For the majority of UK Tesla owners on a single-phase supply, the Ohme Home Pro is the smarter buy. Its unmatched tariff integration can save you £300+ per year, its 4G connectivity adds genuine resilience, and at £535 it's simply outstanding value. The savings it generates will dwarf the price difference within months. That said, if you're on a three-phase supply, plan to keep your home for a decade or more, or simply want a charger that looks and feels like a premium piece of British engineering, the Simpson & Partners Home 7 is a compelling alternative that deserves far more attention than it currently gets.

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Read our full Ohme Home Pro review or Simpson & Partners Home 7 review.

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