Weft and Victron GX and VRM,compared.
Victron's GX devices and the VRM portal monitor and control a Victron energy system, locally and remotely, with free remote monitoring and open interfaces. Weft covers the whole vehicle, and the Victron system is one part of it: Weft reads the Victron devices and puts them in one owner app next to heating, water, lighting, switching and cameras.
| Weft | Victron GX and VRM | |
|---|---|---|
| What it covers | The whole vehicle: energy, heating and climate, switching, levelling, water, internet, cameras and sensors, from many brands, through one Weft Core. | The Victron energy system. The Cerbo GX monitors and controls Victron devices and supports managed lithium batteries, generator start and stop, and tank and temperature inputs. |
| Who sets it up | The builder or installer fits Weft Core and adds wired systems in Weft Builder. Owners add wireless extras in the app. | Sold through Victron dealers and set up with VictronConnect or the GX menus. |
| Owner app | The Weft owner app, in the builder's brand. | VictronConnect, locally over Bluetooth, and the VRM app on iOS, Android, macOS and several smartwatches. |
| Remote access | Built in: Weft Core has LTE with an eSIM. Weft Connect is included for three years, then $159 a year. Builders help remotely in Workshop. | The VRM portal, free with a GX device. The vehicle provides the internet connection, for example a router or Victron's GX LTE 4G modem. The GlobalLink 530 includes five years of cellular connectivity. |
| Cost | Weft Core $1,990 or Weft Core NVR $2,790, list price per vehicle, with three years of Weft Connect. | One-off hardware with no VRM subscription. Victron doesn't publish euro list prices; retailers sell the Cerbo GX for about €256. |
| Works with other brands | Yes: 21 integrations across brands, over CAN-FD, RS-485, Bluetooth LE, Zigbee and Ethernet. | Open. Venus OS is open source, with MQTT, Modbus-TCP, Node-RED, Signal K and the VRM API. |
| Availability | Not on sale yet. Pilot program December 2026 · EU launch Q1 2027 · US Q2 2027. | On sale now through Victron's dealer network, with a 5-year warranty on the Cerbo GX. |
Facts about Victron GX and VRM come from Victron Energy's own pages and named retailers, checked on 18 October 2026. Sources are listed below.
Choose Victron GX and VRM if…
- You only need the energy system, and want the deepest control of every Victron device, including settings and firmware.
- You want free remote monitoring without a subscription.
- You want open interfaces to build on yourself, such as MQTT, Modbus-TCP and Node-RED.
Choose Weft if…
- You want one owner app for the whole vehicle, not only its energy.
- You're a builder who wants the app in your brand, and remote support for every vehicle you deliver.
- The vehicle also has heating, switching, levelling, cameras or sensors from other brands.
Using both
Keep the Victron system and its tools. Weft reads Victron devices over Bluetooth Instant Readout and through the Cerbo GX, and shows battery, solar and charging next to everything else in the vehicle.
Sources, checked 18 October 2026
- Victron Energy, Cerbo GX
- Victron Energy, VRM Portal manual
- Victron Energy, GlobalLink 530 manual
- Victron Energy, open source
- Obramat, Cerbo GX retail price
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