EO Mini Pro 3 vs Indra Smart PRO

£128 buys you a smaller box — not a better charger

The EO Mini Pro 3 costs £523. The Indra Smart PRO costs £395. That £128 gap is wide enough to matter, and it flows in the wrong direction for the EO. The Indra is cheaper, includes surge protection the EO does not, carries a longer cable, and adds dynamic load balancing. The EO's counter-argument is physical: at 215 × 140 × 100 mm, it is the smallest mainstream charger on the UK market. If your wall demands that, nothing else will do. If your wall can accommodate a standard-sized unit, the Indra is the stronger proposition.

• EO Mini Pro 3 — the charger for constrained walls. A5-sized, 2.5 kg, 5-metre cable, £523.
• Indra Smart PRO — the charger for constrained budgets. SPD in the box, 6-metre cable, dynamic load balancing, £395.

The Indra's install-cost advantage is hard to ignore

The headline prices — £523 vs £395 — already favour the Indra. Then the install bill arrives. The Indra Smart PRO includes a surge protection device. Most other chargers, the EO included, require the electrician to fit one separately, and that typically adds £100–£150 in parts and labour. Factor that in and the effective gap between these two chargers stretches towards £230–£280 on a standard install.

Both chargers are OZEV-approved, so renters and flat owners can claim the £500 grant. For the Indra at £395, that grant covers the unit outright and chips into the install costs too. For the EO at £523, the grant still covers most of the unit price but leaves a remainder. Either way, the Indra lands cheaper on the wall.

The Indra also includes dynamic load balancing — it monitors your home's electrical load and adjusts charging current to avoid tripping the main fuse. The EO does not list this feature. In a home running an electric oven, immersion heater, or heat pump alongside an EV charger, that is a meaningful safety and convenience difference.

When the EO Mini Pro 3 earns its premium

Two scenarios justify the EO's £128 premium. The first is physical space. A narrow garage pillar, a recessed alcove beside a door, a wall shared with a neighbour's property — the EO's 215 × 140 mm face fits where nothing else will. The Indra, at 340 × 240 mm, is a perfectly normal size, but normal is sometimes too large.

The second is British Gas. If you are on the Hive Power+ tariff, the EO Mini Pro 3 in its British Gas variant credits back 25 per cent of charging costs. No other charger on the market offers that structural discount within the British Gas ecosystem. On British Gas EV Power at 9p/kWh off-peak, that 25 per cent cashback drops the effective rate to under 7p — competitive with EDF GoElectric at 6.99p/kWh, without switching supplier.

Outside those two cases, the EO's advantages thin. Its 5-metre cable is a metre shorter than the Indra's 6 metres. Its maximum output is 7.2kW against the Indra's 7.4kW — a trivial difference in practice, but the EO is slower on paper for no compensating gain. And EO is retiring its own app, migrating owners to ev.energy. That is not necessarily a downgrade, but it means the software platform you buy into today is not the one on the older marketing materials. Worth knowing before you commit.

Connectivity and tariff support

The EO offers Wi-Fi, Bluetooth, Ethernet, and optional 4G. That is a broader set of connection options than the Indra's Wi-Fi and Bluetooth. If your charger sits in a detached garage with poor Wi-Fi, the EO's Ethernet port — or the 4G add-on — provides a wired fallback the Indra cannot match.

On tariff scheduling, the Indra covers more ground. It supports Octopus Intelligent Go, Octopus Go, OVO Charge Anytime, and EDF GoElectric. The EO handles Octopus Go and EDF GoElectric but does not list Intelligent Go or OVO support. If you are on Intelligent Go — the tariff that optimises charging across the full 23:30–05:30 window — the Indra is the only one of these two that integrates directly.

Both chargers include a CT clamp for solar diversion. Neither approaches the sophistication of the myenergi Zappi GLO in Eco+ mode, but for homes with a modest solar array wanting to divert surplus generation, both will do the job.

The verdict

Buy the EO Mini Pro 3 if:

• Your mounting wall is too small or awkward for a standard-sized charger
• You are on British Gas Hive Power+ and want the 25 per cent cashback
• Your charger location has no Wi-Fi and you need Ethernet or 4G connectivity

Buy the Indra Smart PRO if:

• You want the lowest total cost on the wall, including install
• You need dynamic load balancing for a busy consumer unit
• You are on Intelligent Go or OVO Charge Anytime

For most homes, the Indra Smart PRO is the charger to fit. It is £128 cheaper before you even account for the included surge protection, it carries a longer cable, and it supports more tariffs. The EO Mini Pro 3 exists for a specific physical constraint — and serves that niche well — but if your wall can take a 340 × 240 mm unit, there is no reason to pay more for less. Buyers who want something between these two in features and price should also look at the Sync Energy Wall Charger 2 at £400 or the VCHRGD Seven Pro at £430.