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 Subaru Solterra charges faster with a peak of 150 kW DC, while the Subaru Solterra is more efficient at 186 Wh/km. The BMW iX offers more WLTP rated range at 425 km.
Side-by-Side Specs
| Spec | BMW iX | Subaru Solterra |
|---|---|---|
| Battery (approx.) | ~71 kWh | ~69 kWh |
| WLTP range (rated) | ~425 km | ~415 km |
| Efficiency (approx.) | ~197 Wh/km | ~186 Wh/km |
| Max DC charging | up to 148 kW | up to 150 kW |
| 10-80% charge time (approx.) | ~34 min | ~30 min |
| Max AC charging | up to 11 kW | up to 6.6 kW |
| DC connector | CCS2 | CCS2 |
Charging Speed
The Subaru Solterra has a peak DC charging speed of 150 kW, which is roughly 1% faster than the BMW iX at 148 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 Subaru Solterra finishes in about 30 minutes, which is 4 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 10 km more than the Subaru Solterra at approximately 415 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 Subaru Solterra consumes 186 Wh/km, compared to 197 Wh/km for the BMW iX. That means the Subaru Solterra 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 Subaru Solterra has approximately 69 kWh.
Which One Should You Choose?
If fast charging speed is your priority, the Subaru Solterra wins on both peak power (up to 150 kW) and time at the plug (approximately 30 minutes from 10-80%). For long road trips with multiple charging stops, that faster turnaround makes a real difference.
For AC charging (home wallboxes, workplace chargers, and public street chargers), the BMW iX supports up to 11 kW, compared to 6.6 kW for the Subaru Solterra. 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 Subaru Solterra is the more efficient choice at 186 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 10 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.
At the charger? Scan the screen.
Point your phone at any charger screen and get instant help. Free app.
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.
EVcourse uses expert knowledge to translate charger screens and decode error codes instantly. Scan any display for help, free to start on iOS.
Don't understand the screen? Scan it.
Point your phone at any charger or car screen for instant help. Any brand, any language. Free to try on iOS.
Free to try on iOS. Android coming soon. Join the Android waitlist.