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 BMW iX has a higher peak charging speed at 148 kW DC, but the BYD ATTO 2 actually finishes the 10-80% charge faster (32 min vs 34 min) thanks to its smaller battery. The BYD ATTO 2 is more efficient at 184 Wh/km. The BMW iX offers more WLTP rated range at 425 km.
Side-by-Side Specs
| Spec | BMW iX | BYD ATTO 2 |
|---|---|---|
| Battery (approx.) | ~71 kWh | ~45 kWh |
| WLTP range (rated) | ~425 km | ~312 km |
| Efficiency (approx.) | ~197 Wh/km | ~184 Wh/km |
| Max DC charging | up to 148 kW | up to 80 kW |
| 10-80% charge time (approx.) | ~34 min | ~32 min |
| Max AC charging | up to 11 kW | up to 7.4 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The BMW iX has a peak DC charging speed of 148 kW, which is roughly 85% faster than the BYD ATTO 2 at 80 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 BYD ATTO 2 finishes in about 32 minutes, which is 2 minutes quicker than the BMW iX at 34 minutes. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The BMW iX has a WLTP rated range of approximately 425 km, which is roughly 113 km more than the BYD ATTO 2 at approximately 312 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 BYD ATTO 2 consumes 184 Wh/km, compared to 197 Wh/km for the BMW iX. That means the BYD ATTO 2 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 BMW iX has approximately 71 kWh of useable battery , while the BYD ATTO 2 has approximately 45 kWh.
Which One Should You Choose?
The BMW iX has the higher peak DC speed at up to 148 kW, but the BYD ATTO 2 actually finishes the 10-80% charge faster at approximately 32 minutes versus approximately 34 minutes. That is because the BYD ATTO 2 has a smaller battery to fill. On road trips, time at the plug matters more than peak power.
For AC charging (home wallboxes, workplace chargers, and public street chargers), the BMW iX supports up to 11 kW, compared to 7.4 kW for the BYD ATTO 2. In Europe, many public chargers are 22 kW AC, so this difference can mean charging roughly twice as fast at those locations.
If you mostly charge at home or at work and care more about daily driving costs, the BYD ATTO 2 is the more efficient choice at 184 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the BMW iX has a WLTP rated range of approximately 425 km, which is roughly 113 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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