Cord Zero vs Rolec EVO: the £106 question

Two British propositions, £106 apart

The Cord Zero and Rolec EVO are aimed at the same pragmatic buyer — someone who wants smart charging, solar awareness, and a clean install without paying Andersen money. They arrive at the same destination by different routes. The Cord Zero costs £555 and leans on dual connectivity. The Rolec EVO costs £449 and leans on British manufacturing and a longer warranty. £106 separates them.

• Cord Zero — the charger that keeps talking when the router sulks. Tethered, 4G backup, £555.
• Rolec EVO — UK-built, untethered, five-year warranty as standard, £449.

Is the Cord Zero's £106 premium worth it?

It comes down to one question: how reliable is your home Wi-Fi at the point on the wall where the charger lives? The Cord Zero's defining feature is dual Wi-Fi + 4G with automatic failover, powered by a multi-network SIM. If your broadband drops at 2am mid-charge on Octopus Intelligent Go, the Cord Zero keeps negotiating with the tariff; the Rolec EVO loses the conversation until the router comes back.

For most suburban homes with the router in the hallway and the charger ten metres away behind brick, this matters less than the spec sheet suggests. Wi-Fi 6 — which the Rolec EVO supports, along with Bluetooth 5.0 and Ethernet — is usually enough. A Powerline adapter or a mesh node sorts the rest for £40. If you've already fought this battle and lost, the Cord Zero's 4G is genuine insurance. If you haven't, you're paying £106 for a problem you may not have.

Install costs — the gap narrows

Both chargers pack in the integrated safety components that cut installer labour. The Rolec EVO has a built-in Type A RCD, 6mA DC protection, PME/PEN fault detection, and surge protection. The Cord Zero matches it. Either should save £150–£250 against a charger that needs a separate PEN device or earth rod.

What this means for the total on your driveway: the Rolec EVO lands around £849–£1,049 fitted. The Cord Zero lands around £955–£1,055. For renters and flat owners, the £500 OZEV grant covers most of the Rolec EVO's £449 unit outright and contributes to install labour on top, and knocks the Cord Zero down to £55 for the unit itself. Worth knowing before ruling out either on sticker price.

Tethered or untethered — a real choice

The Cord Zero ships tethered with a 5-metre cable (or 8 metres for £625). The Rolec EVO is untethered only. For most drivers this is a preference rather than a dealbreaker, but it cuts both ways.

Tethered is quicker — park, plug in, walk away. No cable to fetch from the boot, no coiling in the rain. Untethered looks tidier on the wall, futureproofs you if you switch cars, and lets you use whatever cable length suits the driveway. It also means the cable lives in your car, taking up boot space and getting dirty. The Cord Zero has a cable-lock feature; the Rolec EVO doesn't — though an untethered charger has nothing to steal once you take your cable inside.

Build and weatherproofing

Both are IP54 rated for water and dust. Impact resistance splits them: the Rolec EVO is IK10, the highest rating you'll find on a home charger. The Cord Zero is IK08 — still solid, but a step down. For a unit tucked under a porch, this is academic. For a charger on an exposed wall facing a football-playing seven-year-old, the Rolec EVO is the sturdier pick.

The app question

Neither app is at the level of Ohme Home Pro or Tesla's. Both are functional. The Cord AI app handles schedules and tariff integration across Octopus Go, Intelligent Go, OVO, British Gas, and EDF; the Rolec EVO app offers similar scheduling plus Eco and Eco+ solar modes. If a polished app is central to your daily experience — and for some buyers it is — the Ohme Home Pro at £535 is the better fit than either of these. If the app is just the tool you use on install day and then forget, the gap here is small.

The verdict

Buy the Cord Zero if:

• Your home Wi-Fi is unreliable at the charger's location
• You want a tethered cable and the option of 8 metres
• A current promotional five-year warranty is available at purchase

Buy the Rolec EVO if:

• Your broadband is solid and 4G backup is overkill
• You want a British-built charger with a five-year warranty as standard
• You'd rather put £106 toward the install or a decent Type 2 cable

On a typical UK wall with working Wi-Fi, the Rolec EVO is the one we'd fit. £449, IK10, five years, made in Lincolnshire — the arithmetic is hard to argue with. The Cord Zero earns its £106 in exactly one scenario: when your signal can't be trusted. If that's your house, it's worth it. If it isn't, the Rolec EVO is the quieter, cheaper, more sensible answer.