BYD SEAL U vs Mercedes-Benz GLB Electric

Side-by-Side Specs

Charging Speed

The Mercedes-Benz GLB Electric has the higher published DC fast-charging figure at 170 kW, which is roughly 21% higher than the BYD SEAL U at 140 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 Mercedes-Benz GLB Electric finishes in about 30 minutes, which is 4 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 Mercedes-Benz GLB Electric has a WLTP rated range of approximately 545 km, which is roughly 45 km more than the BYD SEAL U at approximately 500 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 Mercedes-Benz GLB Electric consumes 183 Wh/km, compared to 205 Wh/km for the BYD SEAL U. That means the Mercedes-Benz GLB Electric 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 Mercedes-Benz GLB Electric has approximately 85 kWh of useable battery , while the BYD SEAL U has approximately 87 kWh.

Which One Should You Choose?

If fast charging is your priority, the Mercedes-Benz GLB Electric has the higher published DC figure (up to 170 kW) while matching the quickest published 10-80% time at approximately 30 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 Mercedes-Benz GLB Electric is the more efficient choice at 183 Wh/km. Lower consumption means lower electricity bills over time.

For maximum range between charges, the Mercedes-Benz GLB Electric has a WLTP rated range of approximately 545 km, which is roughly 45 km more. Both are capable EVs. The best choice depends on how you charge and how far you drive.