The BYD SEALION 7 has quickly emerged as one of the most exciting new entrants into the UK electric SUV market. We’re taking a look at what sets it apart from BYD UK‘s existing line-up, its key features, and what makes it so unique and desirable, in this BYD SEALION 7 review.
As the fifth BYD model released in the UK and the fourth in the Ocean Series line-up, the SEALION 7 has been crafted for tech-savvy families, eco‑minded drivers, and anyone looking to future‑proof their next vehicle purchase. It features an overall length of 4,830 mm, a 2,930 mm wheelbase, a WLTP range of up to 312 miles, a top speed of 134 mph, and acceleration from 0-62 mph in just 4.5 seconds. This sporty and stylish SUV offers advanced EV technology, a spacious and refined interior, and an intelligent in-car interface.
Ocean‑inspired design
The SEALION 7 transforms the Ocean Series design language seen on the SEAL and DOLPHIN into a sporty SUV. The SEALION 7 delivers sleek, flowing lines and a sporty fastback silhouette. Its distinctive “OCEAN X” front styling, crafted with sharp, dynamic contours, gives the SUV an unmistakable presence on the road. Dual U-shaped LED headlights and sculpted curves evoke ocean waves. The side profile combines a smooth yet assertive look, with a low front, rounded roofline, and fastback rear with a subtle ducktail spoiler. Crisp creases along the body create a dual waistline, while flush door handles enhance its streamlined appearance.
Premium touches continue to the rear, where futuristic tail lamps combine linear LED strips with water‑drop detailing to create an eye‑catching, modern aesthetic. At 30mm longer and 160mm taller than the SEAL, the SEALION 7 emphasizes its unique SUV positioning. The extended wheelbase enhances stability while also creating generous interior space for passengers and luggage.
Premium interior
With its SUV form and 4,830 mm length, the SEALION 7 offers a spacious cabin for five adults, offering a serene, yacht‑inspired cabin designed around movement, suspension, and seamless flow. A 2,930mm wheelbase and flat rear floor maximise legroom, while the slim Blade Battery allows generous headroom even with the SUV’s sleek roofline. Premium comfort features include an eight-way power-adjustable driver’s seat, heated and ventilated front seats, double-layered laminated glass for noise reduction, and a large panoramic sunroof with a sunshade. Storage includes a 520-litre boot (extendable to 1,789 litres with rear seats folded), a 58-litre front compartment, and over 20 small storage compartments.
More highlights include quilted Nappa leather seats, a 15.6-inch rotating touchscreen, 128-colour ambient lighting, and a 12-speaker Dynaudio sound system delivering immersive, high-quality audio. These elements combine to create a refined, comfortable and highly connected interior suitable for both family life and long‑distance travel.
Blade Battery and Cell-To-Body installation
Built on BYD’s award winning e-Platform 3.0, the SEALION 7 features the Blade Battery, an industry-leading battery that combines safety, efficiency, and durability. Using lithium iron phosphate (LFP) as a cathode material, it’s cobalt-free, ethically sourced, and highly resistant to extreme temperatures. The Blade Battery’s cell-to-body installation integrates directly into the vehicle frame, maximizing cabin space and torsional stiffness.
Range and charging
The SEALION 7 is available with two battery capacities and three configurations to balance performance and range. The Comfort and Design trims come with an 82.5 kWh battery, offering up to 300 miles WLTP range on RWD models and 283 miles on AWD. The top-spec Excellence AWD trim boasts a 91.3 kWh battery, achieving the longest range in the line-up at 312 miles WLTP. All versions offer 11 kW AC charging and up to 150 kW or 230 kW DC fast charging, depending on the model. A highly efficient heat pump, synonymous across the BYD range, is standard, helping to maximise range, particularly in cold conditions.
The SEALION 7 can charge from 10% to 80% in as little as 24 minutes with ultra-fast 230 kW DC charging on top-spec models, making it ideal for long trips.
Technology and safety
The SEALION 7 integrates BYD’s latest technology, centred on a 15.6-inch rotatable touchscreen. The intuitive interface offers a 3D car rendering, interactive controls, Android Auto and Apple CarPlay integration, and a 10.25-inch digital instrument panel. The Excellence AWD also includes a Head-Up Display. BYD’s voice control system enables front and rear passengers to interact with the infotainment and climate systems through voice commands. The BYD SEALION 7 also features a 12-speaker audio system developed in conjunction with Danish speaker specialist Dynaudio.
Equipped with BYD’s DiPilot 10 suite, the SEALION 7 offers a wide range of driver-assistance features: including adaptive cruise control, lane departure warning, front and rear cross traffic alert and cross traffic braking, 360-degree cameras, and blind-spot detection. An intelligent speed limit and traffic-sign recognition system further enhance driving safety, while 11 airbags and ISOFIX child-seat connectors add protection in the cabin.
Dynamic trim levels on the BYD SEALION 7
The SEALION 7 is available in Comfort, Design, and Excellence trims, each loaded with high-end features. The Comfort model includes heated seats, dual-zone climate control, a 15.6-inch rotatable screen, a wireless charging pad, and V2L capability for powering household devices. Design models add 20-inch alloy wheels, and Excellence models feature Nappa leather seats and a Head-Up Display.
The BYD SEALION 7 is more than just another EV, it’s a statement of BYD’s growing presence in the UK. Its thoughtful blend of design excellence, electric performance, long‑range capability, and family‑ready practicality positions it as a serious contender in the mid‑size EV market. Whether you’re looking for your next family car, making the switch to electric, or seeking luxury without the premium price tag, the SEALION 7 offers an impressive all‑round package that’s well worth a test drive.
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