Data shown is approximate and based on publicly available specifications and real-world estimates. Actual performance varies with driving conditions, temperature, state of charge, and charger hardware. Always check your vehicle's manual for official specifications. EVcourse is not affiliated with any vehicle manufacturer.
Quick verdict
The BYD SEAL U has a higher peak charging speed at 140 kW DC, but the BMW iX1 actually finishes the 10-80% charge faster (33 min vs 34 min) thanks to its smaller battery. The BMW iX1 is more efficient at 170 Wh/km. The BYD SEAL U offers more WLTP rated range at 500 km.
Side-by-Side Specs
| Spec | BMW iX1 | BYD SEAL U |
|---|---|---|
| Battery (approx.) | ~64.7 kWh | ~87 kWh |
| WLTP range (rated) | ~440 km | ~500 km |
| Efficiency (approx.) | ~170 Wh/km | ~205 Wh/km |
| Max DC charging | up to 128 kW | up to 140 kW |
| 10-80% charge time (approx.) | ~33 min | ~34 min |
| Max AC charging | up to 11 kW | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The BYD SEAL U has a peak DC charging speed of 140 kW, which is roughly 9% faster than the BMW iX1 at 128 kW. In practice, peak speed only tells part of the story. The charging curve, battery temperature, and state of charge all affect how quickly your car actually charges.
For the 10-80% charge (the most common DC fast charging scenario), the BMW iX1 finishes in about 33 minutes, which is 1 minutes quicker than the BYD SEAL U at 34 minutes. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The BYD SEAL U has a WLTP rated range of approximately 500 km, which is roughly 60 km more than the BMW iX1 at approximately 440 km. WLTP is a standardized lab test. Expect your actual range to be lower, varying with speed, weather, terrain, and driving style.
Efficiency matters more than battery size for daily driving costs. The BMW iX1 consumes 170 Wh/km, compared to 205 Wh/km for the BYD SEAL U. That means the BMW iX1 uses less energy per kilometer, which translates to lower charging costs and fewer charging stops on longer drives.
A more efficient car does not always mean more range. Battery size plays a role too. The BYD SEAL U has approximately 87 kWh of useable battery , while the BMW iX1 has approximately 64.7 kWh.
Which One Should You Choose?
The BYD SEAL U has the higher peak DC speed at up to 140 kW, but the BMW iX1 actually finishes the 10-80% charge faster at approximately 33 minutes versus approximately 34 minutes. That is because the BMW iX1 has a smaller battery to fill. On road trips, time at the plug matters more than peak power.
Both cars support 11 kW AC charging, so home and workplace charging speeds will be similar.
If you mostly charge at home or at work and care more about daily driving costs, the BMW iX1 is the more efficient choice at 170 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the BYD SEAL U has a WLTP rated range of approximately 500 km, which is roughly 60 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.
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From Finn, engineer: Charging specs alone do not tell the full story. Real-world charging speed depends on battery temperature, state of charge, and the charger itself. These comparisons use manufacturer-published data. Approximate values only.
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