The ET7 comes with third-generation Qualcomm® Snapdragon™ Automotive Cockpit Platform for in-car mobile connectivity and communication including 5G, NFC and Bluetooth 5.2.

The ET7 also features 256 colour interior ambient lighting, soft close doors with frameless windows, and intelligent fragrance system.

[12] The ET7's computing systems have also been upgraded, with it now consisting of a Qualcomm Snapdragon 8295 SoC accompanied with four Nvidia Orin X chips, called ADAM.

The NOMI AI assistant has been updated to use GPT models that are run locally, without the need for an internet connection, increasing data privacy.

The front axle is powered by a permanent magnet synchronous AC motor making 180 kW (241 hp; 245 PS) and 350 N⋅m (258 lb⋅ft) of torque.

Later, it was replaced by a new 75 kWh LFP-NMC dual chemistry battery with peak range of 550 km (342 mi) revealed before ET7 production began.

In mid-2024, a 150 kWh semi-solid state NMC battery was introduced, allowing for an NEDC range of 1,050 kilometres (652 mi).

It is the first ever mass produced automotive traction battery to use semi-solid state electrolyte technology, and is supplied by WeLion.

At the announcement in February 2024, Nio said that each pack costs the company as much as an entire ET5 at launch, which has a starting price of CN¥ 328,000, or CN¥ 258,000 (approximately US$48,000, or US$38,000) with a battery subscription.

The Aquila autonomous driving system generates 8 gigabytes of data per second which is analysed by an onboard computer called Adam.

[25] It was given the Car of the Year 2022 award by the Swedish magazine auto motor und sport Sverige, and also won in the luxury class.