Indra Smart PRO vs Sync Energy Wall Charger 2: British Value Showdown

British-Made and Budget-Friendly: But Which Delivers More for Your Money?

Choosing between two UK-designed smart chargers that both offer solar diversion, smart tariff scheduling, and dynamic load balancing sounds like splitting hairs — until you notice the price gap. The Indra Smart PRO comes in at £599, while the Sync Energy Wall Charger 2 starts from just £302 tethered or £362 for the socketed Wi-Fi/LAN model. That is a significant difference for chargers that, on paper, tick many of the same boxes.

Both are OZEV-approved, both charge at the UK single-phase maximum of 7.4kW, and both are backed by British companies. So where does the extra money go with the Indra, and is the Sync Energy genuinely a bargain or a compromise? Let us dig in.

In a nutshell:

• Indra Smart PRO (£599): A well-engineered British charger with an included surge protection device (SPD) that genuinely reduces installation costs, plus a CT clamp for solar diversion out of the box.
• Sync Energy Wall Charger 2 (£362): Remarkable value with built-in PEN fault protection, OCPP 1.6J compliance, and nine interchangeable fascia colours — all for roughly £240 less.

Spec Comparison

Smart Tariff Integration

Both chargers let you schedule charging around cheap off-peak electricity — essential if you are on a tariff like Octopus Intelligent Go (~7p/kWh off-peak) or Octopus Go (7.5p/kWh between 00:30 and 04:30). At those rates, charging a Tesla Model 3 from 20% to 80% costs roughly £2.50 instead of £15+ at peak rates. Over a year of average UK driving (~7,400 miles), that is the difference between around £150 and £900 in electricity costs.

The Indra Smart PRO offers tariff integration through the Indra app (powered by Kaluza), allowing you to input your tariff details so the charger automatically starts when the cheap rate kicks in. Reviews from topcharger.co.uk praise this feature as reliable and straightforward. The Sync Energy Wall Charger 2 takes a similar approach with its TariffSense scheduling, though its additional OCPP 1.6J compliance means it can also work with third-party energy management platforms — a genuine advantage if you want flexibility beyond the manufacturer's own app ecosystem.

Neither charger offers the deep Octopus Intelligent Go integration that Ohme provides (where the energy supplier controls charging slots directly), but both handle time-of-use scheduling competently for the vast majority of UK EV tariffs.

Solar Diversion

If you have solar panels, both chargers can divert surplus generation into your car rather than exporting it to the grid for a pittance. The Indra Smart PRO includes a CT clamp as standard for solar matching — no extra hardware to buy. According to electriccarguide.co.uk, the Indra's solar matching works well, and the charger has been listed among the best EV chargers for solar integration.

The Sync Energy Wall Charger 2 offers its SolarCharge feature with a CT clamp as well. Both chargers vary the charging current (from 6A upwards) to match available solar power, though neither will match a dedicated solar diverter like the myenergi zappi for granularity. For most homeowners with a typical 4kW solar array, either charger will do the job of soaking up free sunshine rather than paying 24p/kWh from the grid.

Build Quality, Design, and Weatherproofing

Here is where the Sync Energy pulls ahead on paper. Its IP65 rating plus IK10 impact resistance means it is fully protected against water jets from any direction and can shrug off a solid knock — ideal if your charger sits on an exposed driveway. The Indra Smart PRO's IP54 rating is adequate for UK weather (protection against splashing water), but it is a step below. That said, indra.co.uk lists the latest tethered Smart PRO at IP66, so it is worth confirming the spec of the exact model you are purchasing.

Aesthetically, the Sync Energy wins on personalisation with nine interchangeable fascia plates, letting you match your charger to your property. The Indra Smart PRO comes in white only — topcharger.co.uk noted the lack of an all-black option as a drawback. The Indra is also the bulkier unit at 340 × 240mm versus the Sync Energy's more compact 305 × 201mm footprint.

On cable length, the Sync Energy's 7.5-metre tethered cable gives you an extra 1.5 metres of reach over the Indra's 6-metre cable — a practical advantage if your parking spot is further from the charger.

Installation Considerations

Both chargers include features that can reduce your installation bill. The Indra Smart PRO includes a surge protection device (SPD) as standard, which typically saves £100–150 since 18th Edition wiring regulations require SPDs in most new installations. The Sync Energy Wall Charger 2 counters with built-in PEN fault protection, eliminating the need for an earth rod — a job that can cost £50–100 and involves drilling into your driveway or garden.

Both chargers offer dynamic load balancing to prevent overloading your home's electrical supply, which is particularly important in older UK properties with limited consumer unit capacity.

Price and Value

The numbers speak loudly. Even at the top end of the Sync Energy's installation range, you are likely paying less than the Indra at its cheapest. The Indra's included SPD narrows the gap by £100–150, but the Sync Energy's built-in PEN fault protection claws back £50–100 of that difference. In real terms, you are looking at saving roughly £200–300 by choosing the Sync Energy.

That said, the Indra Smart PRO is available fully installed from £949 through Indra's own installation service according to indra.co.uk, which simplifies the process considerably if you prefer a single-supplier experience.

Who Should Buy Which?

Buy the Indra Smart PRO if:

• You want a single-supplier, fully installed package from a British manufacturer
• The included SPD saves you significant money on your specific installation
• You are interested in Indra's V2G ecosystem for potential future upgrades
• You prefer the reassurance of Indra's established reputation in the UK EV charging space
• You value the Kaluza-powered tariff integration and proven solar matching

Buy the Sync Energy Wall Charger 2 if:

• Budget is a priority — you want maximum features for minimum outlay
• You need OCPP 1.6J compliance for third-party energy platform compatibility
• You want to customise the charger's appearance with interchangeable colour fascias
• A longer 7.5-metre cable better suits your parking arrangement
• Superior weatherproofing (IP65 + IK10) matters for an exposed installation
• Built-in PEN fault protection simplifies your installation

Our recommendation: For most UK homeowners, the Sync Energy Wall Charger 2 offers the better value proposition. It matches or exceeds the Indra Smart PRO on nearly every technical specification — better weatherproofing, longer cable, OCPP support, more colour options — while costing roughly £237 less at the unit level. The Indra Smart PRO is a perfectly solid charger, and its included SPD is a genuine cost-saver, but it struggles to justify the premium when the Sync Energy delivers so much for so little. If you specifically want Indra's turnkey installation service or are eyeing their future V2G products, the Smart PRO makes sense. For everyone else, the Sync Energy is the smarter spend.

For the full specs-level breakdown, see our Indra Smart PRO vs Sync Energy Wall Charger 2 comparison page.

Read our full Indra Smart PRO review or Sync Energy Wall Charger 2 review.

If you have solar panels, see our best EV charger for solar panels guide.

For total installed cost rankings, see our cheapest EV charger guide.

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