Data shown is approximate and based on publicly available specifications and real-world estimates. For models with multiple battery versions, this page compares the variants listed above. Actual performance varies with driving conditions, temperature, state of charge, and charger hardware. Always check the manufacturer specification page and your vehicle's manual for official figures. EVcourse is not affiliated with any vehicle manufacturer.
Quick verdict
The BMW iX3 has the higher published DC fast-charging figure at 150 kW, while the BMW iX is more efficient at approximately 197 Wh/km. The BMW iX3 offers more WLTP rated range at 460 km.
Side-by-Side Specs
| Spec | BMW iX | BMW iX3 |
|---|---|---|
| Compared variant | xDrive40 | G08 |
| Battery (approx.) | ~71 kWh | ~74 kWh |
| WLTP range (rated) | ~425 km | ~460 km |
| Efficiency (approx.) | ~197 Wh/km | ~206 Wh/km |
| DC fast charging (published) | up to 148 kW | up to 150 kW |
| 10-80% charge time (approx.) | ~34 min | ~34 min |
| Max AC charging | up to 11 kW (22 kW optional) | up to 11 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The BMW iX3 has the higher published DC fast-charging figure at 150 kW, which is roughly 1% higher than the BMW iX at 148 kW. In practice, that figure 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 iX3 finishes in about 34 minutes, roughly matching the BMW iX. On a road trip, that difference adds up over multiple stops.
Range and Efficiency
The BMW iX3 has a WLTP rated range of approximately 460 km, which is roughly 35 km more than the BMW iX at approximately 425 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 iX consumes 197 Wh/km, compared to 206 Wh/km for the BMW iX3. That means the BMW iX 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 iX3 has approximately 74 kWh of useable battery , while the BMW iX has approximately 71 kWh.
Which One Should You Choose?
If fast charging is your priority, the BMW iX3 has the higher published DC figure (up to 150 kW) while matching the quickest published 10-80% time at approximately 34 minutes. For long road trips, published stop time matters more than the headline kW number alone.
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 iX is the more efficient choice at 197 Wh/km. Lower consumption means lower electricity bills over time.
For maximum range between charges, the BMW iX3 has a WLTP rated range of approximately 460 km, which is roughly 35 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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