Ohme Home Pro vs EO Mini Pro 3: Smart Tariff King vs Tiny Powerhouse

The Tariff Whisperer vs the Incredible Shrinking Charger

These two chargers occupy an interesting corner of the UK EV market. Both are smart, both support solar diversion, and both will happily charge your Tesla or any other Type 2 EV overnight. But they come at this from very different angles. The Ohme Home Pro has built its reputation as the undisputed champion of smart tariff integration — it is officially recommended by Octopus Energy for their Intelligent Go tariff and can automatically hunt out the cheapest half-hour slots to charge your car. The EO Mini Pro 3, meanwhile, has a party trick all of its own: it is the smallest home EV charger on the market, roughly the size of an A5 sheet of paper, making it the go-to option when wall space is at a premium.

What makes this comparison genuinely useful is that both chargers tick the "smart" box, both handle solar, and both carry a 3-year warranty. Yet there is a meaningful £164 price gap — with the Ohme being the cheaper option. So is the EO Mini Pro 3's compact form factor worth the premium, or does the Ohme Home Pro simply offer more for less?

In a nutshell:

• Ohme Home Pro (£535): The best smart tariff charger in the UK, with deep Octopus integration and built-in 4G that can save you hundreds of pounds a year on charging costs.
• EO Mini Pro 3 (£699): The smallest charger on the market with Ethernet connectivity and British Gas Power+ cashback — ideal for tight spaces and Hive households.

Spec Comparison

Smart Tariff Integration

This is where the Ohme Home Pro pulls decisively ahead. It does not just support smart tariffs — it has direct API-level integration with Octopus Energy, OVO, and other providers. On Octopus Intelligent Go (~7p/kWh off-peak), the Ohme communicates directly with Octopus's servers. You tell the app when you need the car ready by and how much charge you need, and the charger and Octopus work together to find the cheapest slots across the entire night. As electriccarguide.co.uk notes, this tariff integration is a standout feature that genuinely minimises electricity costs. For a Tesla Model 3 owner covering the UK average of 7,400 miles per year, charging at 7p/kWh rather than a standard variable rate of around 24p/kWh could save you roughly £250–£300 annually.

The EO Mini Pro 3 takes a simpler approach with smart tariff presets for Octopus Go, EDF Go Electric, and others. These presets allow scheduled charging during known off-peak windows — for example, the 00:30–04:30 slot on Octopus Go at 7.5p/kWh. It works, but it is not dynamic. You are setting a timer rather than letting the charger intelligently optimise across variable-rate tariffs like Octopus Agile. If you are on a fixed off-peak window tariff, this distinction matters less. If you want Agile or Intelligent Go, the Ohme is in a different league.

The EO does have one unique trick up its sleeve: British Gas/Hive Power+ integration, which credits back 25% of your charging costs. If you are already in the Hive ecosystem with a British Gas energy deal, that cashback could be genuinely valuable — though it does lock you into their platform.

Solar Diversion

Both chargers support solar diversion, which is increasingly important as more UK homeowners install panels. The EO Mini Pro 3 includes a CT clamp as standard for solar diversion — no extra hardware to buy, which is a nice touch. It monitors your solar generation and diverts surplus energy to your car rather than exporting it to the grid for a pittance.

The Ohme Home Pro also offers solar diverting as a built-in feature. Both solutions work for the typical use case of topping up your Tesla with free sunshine during the day. However, as warmzilla.co.uk points out in their comparison table, neither charger matches the sophistication of the Myenergi Zappi's dedicated eco-charging modes. If solar optimisation is your absolute top priority, both of these chargers will do a competent job, but dedicated solar chargers do it better. For most owners who want solar as a bonus rather than the primary feature, either charger here will serve you well.

App, Connectivity and Design

Connectivity is one area where these two chargers take genuinely different approaches. The Ohme Home Pro comes with a 4G SIM included for three years — no Wi-Fi needed. This is a significant advantage if your charger is installed in a garage or on an external wall far from your router. The Ohme app is widely praised as one of the best in the UK market, offering detailed cost tracking per session, real-time updates, and full control over charging schedules. As mcnallyev.uk notes, the Ohme app wins for smart functionality among the leading UK charger brands. The colour display on the unit itself is a welcome addition — you can glance at charging status without reaching for your phone.

The EO Mini Pro 3 counters with the widest range of connectivity options: Wi-Fi, Bluetooth, and Ethernet, with optional 4G as an add-on. That Ethernet port is genuinely useful — it is the most reliable connection type and something very few chargers offer. If you can run a cable to your charger location, you will never worry about dropped connections. The EO app handles scheduling and monitoring, though it lacks the deep tariff intelligence of Ohme's software. There is no built-in screen, so you are reliant on the app for status updates.

On build quality, the Ohme edges ahead with an IP65 rating (fully weatherproof, including protection against water jets) versus the EO's IP54 (splash-proof). Both will survive a British winter, but the Ohme offers greater peace of mind for fully exposed installations. The EO Mini Pro 3 compensates with its remarkable size — at just 215 × 140 × 100mm and 2.5kg, it is genuinely tiny and practically disappears on a wall. As tinyeco.com highlights, compact design is increasingly valued by homeowners who do not want a bulky box dominating their driveway.

Price and Value

The Ohme Home Pro is £164 cheaper at the unit level and potentially up to £264 cheaper fully installed. That is a significant gap, especially when the cheaper charger arguably offers the stronger smart feature set. The Ohme's deep tariff integration can realistically save an additional £150–£300 per year compared to charging on a standard variable tariff, meaning it could pay for itself within a year of installation — a point echoed by evenergyhub.com in their assessment of the Ohme as a top-tier smart charger.

The EO Mini Pro 3 is harder to justify on pure value unless its unique strengths — the tiny form factor, Ethernet connectivity, or British Gas Power+ cashback — are specifically relevant to you. At £699, it sits in a competitive bracket where chargers like the Hypervolt Home 3 Pro offer more features for similar money.

Who Should Buy Which?

Buy the Ohme Home Pro if:

• You are on Octopus Intelligent Go, Octopus Agile, or OVO and want automated cheapest-rate charging
• You want built-in 4G connectivity without worrying about Wi-Fi range
• You prefer a charger with a colour display for at-a-glance status
• You want the best value smart charger on the market at £535
• You want IP65 weatherproofing for an exposed installation

Buy the EO Mini Pro 3 if:

• You have very limited wall space and need the smallest charger available
• You are a British Gas customer and can benefit from the Hive Power+ 25% cashback
• You want Ethernet connectivity for the most reliable possible connection
• You have solar panels and want the CT clamp included at no extra cost
• Aesthetics matter and you want the charger to be as unobtrusive as possible

Our recommendation: For the majority of UK Tesla owners, the Ohme Home Pro is the better buy. It is cheaper, smarter with energy tariffs, includes 4G as standard, and carries a higher IP rating. The savings it unlocks through Octopus Intelligent Go alone make it one of the most cost-effective chargers you can install. The EO Mini Pro 3 is a genuinely good charger with a clear niche — if wall space is your primary constraint or you are deep in the British Gas/Hive ecosystem, it earns its place. But for everyone else, the Ohme delivers more capability for less money, and that is a combination that is hard to argue with.

Read our full Ohme Home Pro review or EO Mini Pro 3 review.

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