The BYD SEAL and the BYD SEALION 7 are two prominent electric vehicles from BYD, each catering to distinct segments of the automotive market. The BYD SEAL is a sleek electric saloon, while the SEALION 7 is a versatile electric SUV. Understanding the differences between these models can assist potential buyers in making informed decisions based on their preferences and requirements.
Design and Dimensions
The BYD SEAL embodies the characteristics of a modern electric saloon, featuring a streamlined design that emphasises aerodynamics and efficiency. Its sleek profile and elegant lines cater to those seeking a traditional yet futuristic saloon experience.
In contrast, the BYD SEALION 7 is designed as a mid-size electric SUV, offering a more commanding presence on the road. Measuring 4,830 mm in length, 1,925mm in width, and 1,620mm in height, with a wheelbase of 2,930 mm, the SEALION 7 provides ample interior space and a higher driving position, appealing to consumers who prioritise versatility and a more robust aesthetic.


Performance and Powertrain
The BYD SEAL offers various powertrain configurations, including rear-wheel drive (RWD) and all-wheel drive (AWD) options, catering to a range of performance preferences. Specific power outputs and acceleration figures vary, providing flexibility for buyers.
The SEALION 7 also offers multiple configurations:
- Comfort RWD: equipped with a single electric motor producing 230 kW (approximately 308 horsepower), this variant accelerates from 0 to 62mph in 6.7 seconds.
- Design AWD: features a dual-motor setup with a combined output of 390kW (approximately 523 horsepower), achieving a 0 to 62mph time of 4.5 seconds.
- Excellence AWD: shares the powertrain with the Design AWD but includes additional features and a larger battery for extended range.
Battery and Range
The BYD SEAL is equipped with BYD's Blade Battery technology, known for its safety and durability. The battery capacity and corresponding range vary depending on the selected model and configuration, offering options to suit different driving needs.
The SEALION 7 utilises BYD's Blade Battery with two capacity options:
- 82.5 kWh Battery: Available in the Comfort RWD and Design AWD models, offering a WLTP range of up to 300 miles for the RWD variant and 283 miles for the AWD variant.
- 91.3 kWh Battery: Exclusive to the Excellence AWD model, providing an extended WLTP range of up to 312 miles.
Charging Capabilities
Both the SEAL and SEALION 7 support AC and DC charging, with the specifics depending on the model and battery configuration. The SEALION 7 offers:
- AC Charging: up to 11 kW three-phase charging as standard across all models.
- DC Fast Charging:
- Comfort RWD and Design AWD: supports up to 150 kW DC charging, allowing a 10% to 80% charge in approximately 32 minutes.
- Excellence AWD: supports up to 230 kW DC charging, reducing the 10% to 80% charging time to approximately 24 minutes.
Interior Features and Technology
The BYD SEAL's interior focuses on modern design and technology, offering features like a digital instrument cluster, infotainment system and premium materials, depending on the trim level. The SEALION 7 emphasises luxury and advanced technology:
- Display: a 15.6-inch rotating touchscreen infotainment system compatible with Android Auto and Apple CarPlay, complemented by a 10.25-inch digital instrument cluster.
- Audio: a 12-speaker Dynaudio system delivers a premium sound experience.
- Comfort: features include ventilated and heated front seats, heated rear seats, a panoramic sunroof with an electric sunshade and customisable ambient lighting with 128 colors.
- Materials: the Excellence AWD model offers Nappa leather upholstery for an enhanced luxury feel.
Safety and Driver Assistance
Both models are equipped with a suite of safety and driver-assistance features. The SEALION 7 includes BYD’s Advanced Driver Assistance Systems (ADAS) and a 360-degree panoramic camera system, offering features such as adaptive cruise control, lane departure warning, front and rear cross-traffic alerts and blind-spot detection. The BYD SEALION 7 also features the latest iTAC technology which minimises or eliminates skidding.

Which One is Right for You?
Choosing between the BYD SEAL and the SEALION 7 depends on your lifestyle, driving needs and preferences:
Choose the BYD SEAL if: you prefer a sleek, aerodynamic saloon with sporty performance, lower center of gravity and a focus on efficiency. This is ideal for city driving and those who appreciate a traditional car silhouette with electric power.
Choose the BYD SEALION 7 if: you need an SUV with ample space, higher ground clearance and more versatility for family use or outdoor adventures. With AWD options and a higher driving position, it’s suited for those who prioritise comfort, capability and luxury.
Pricing and Market Positioning
The BYD SEAL is positioned to compete with other electric saloons, offering a balance of performance, range and affordability. Pricing varies based on the selected configuration and market.
The SEALION 7 is strategically priced to compete with models like the Tesla Model Y:
- Comfort RWD: starting at £46,990.
- Design AWD: starting at £51,990.
- Excellence AWD: priced at £58,990.
Buy the SEAL or SEALION from Swansway today
Both the BYD SEAL and the SEALION 7 represent BYD’s commitment to innovation in the EV sector. The SEAL offers a dynamic and efficient saloon experience, while the SEALION 7 provides the spaciousness and power of a premium electric SUV. Ultimately, the choice comes down to personal preference - whether you favor the agility of a saloon or the practicality of an SUV. Take a look at our BYD range today and let the team know if you have any questions or would like to know more. If you’re unsure what you're looking for or would like more information about one of the vehicles you see on our website, don’t hesitate to get in touch with one of our team and we’d be happy to help you.