BMW i4 vs BYD Sealion 7
How the BMW i4 and the BYD Sealion 7 compare on real-world range, battery size and efficiency. WLTP is a lab figure — the winter, motorway and city estimates below show what each car really does on the road.
Specifications side by side
| BMW i4 | BYD Sealion 7 | |
|---|---|---|
| WLTP range | 305 mi | 312 mi |
| Usable battery | 84.3 kWh | 91.3 kWh |
| WLTP consumption | 16.1 kWh/100 km | 17.8 kWh/100 km |
| Model year | 2025 | 2025 |
Real-world range, side by side
| BMW i4 | BYD Sealion 7 | |
|---|---|---|
| Winter (−10 °C) | 202 mi | 207 mi |
| Warm weather (30 °C) | 290 mi | 296 mi |
| Motorway | 238 mi | 244 mi |
| City | 329 mi | 337 mi |
The verdict
- Longer range (WLTP)
- BYD Sealion 7
- Further in winter
- BYD Sealion 7
- More efficient
- BMW i4
Frequently asked questions
- Which has more range, the BMW i4 or the BYD Sealion 7?
- On the official WLTP cycle the BMW i4 is rated 305 mi and the BYD Sealion 7 312 mi. In cold winter driving (around −10 °C) expect roughly 202 mi from the BMW i4 and 207 mi from the BYD Sealion 7.
- Which electric car is more efficient?
- Efficiency is the WLTP energy use per 100 km, where lower is better — compare the consumption figures in the table above. The more efficient car uses less electricity for the same distance, so it costs less to charge.