A subcompact (B-segment or A0-class) hatchback in its home country, the Dolphin is positioned above the Seagull in the Chinese market and part of BYD's Ocean Series.

[11] The Dolphin has been exported to overseas markets such as Europe, Australia and Southeast Asia since 2023 with lengthened dimensions to satisfy more stringent crash safety standards, and placing it in the compact or C-segment space.

[13] The company also introduced presented a new generation of electric car platform called the e-Platform 3.0, which offer more efficient performance and range.

For most export markets, the Dolphin was lengthened by approximately 20 cm (7.9 in) in order to accommodate a new front-end crash structure, which was designed to achieve a five-star Australian ANCAP safety rating.

[25] For the Extended Range version, it receives a more sophisticated independent multi-link rear suspension setup replacing torsion beam.

It received an independent multi-link rear suspension setup, a 60 kWh battery option with a 150 kW (204 PS; 201 hp) electric motor and a wireless charger, which were previously reserved for the global market version.

As with the global specification, the European market Dolphin occupies the C-segment as it received different front and rear bumpers that extended its length to of 4,290 mm (168.9 in).

The car is powered by a 150 kW (204 PS; 201 hp) front-wheel drive motor, paired with a 60.48 kWh battery which is shared with the Atto 3.

[34] In March 2023, the global right hand drive version of Dolphin was shown to the public for the first time as the Standard Range (70 kW (95 PS; 94 hp) with 44.9 kWh blade battery) at the Bangkok International Motor Show 2023.

[42][43]The Dolphin was introduced in Indonesia in January 2024 alongside the Atto 3 and Seal, as part of BYD's entry to the Indonesian passenger car market.

[47] The Dolphin has been launched in Brunei in 15 June 2024 and the car were offered only in Dynamic Standard Range (44.9 kWh) in a single trim.

Base model "Comfort", and "Design" that adds more premium equipment such as panoramic roof & wireless phone charger.