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Mercedes GLB vs smart #1 comparison

Compare performance (354 HP vs 428 HP), boot space and price (50,600 £ vs 31,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or smart #1?

Mercedes GLB vs smart #1: Key differences

Mercedes GLB

3.2 (3 Reviews)
rate
  • marginally more efficient
  • clearly more electric range
  • clearly more trunk space

smart #1

  • substantially cheaper
  • moderately more power
  • considerably quicker 0–100 km/h
  • noticeably lighter

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

Here’s where it gets real: The technical differences in detail

GLB

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

smart #1 is substantially cheaper – starting at 31,700 £ , while the Mercedes GLB costs 50,600 £ . That’s a price difference of around 18,907 £.

In terms of energy consumption, the Mercedes GLB is marginally more efficient: consuming 15.8 kWh/100km compared to 16.8 kWh/100km for the smart #1. That’s a difference of about 1 kWh/100km.

As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 191 km more than the smart #1.

#1

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the smart #1 offers moderately more power – delivering 428 HP compared to 354 HP. That’s roughly 74 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #1 is considerably quicker – completing the sprint in 3.9 s, while the Mercedes GLB takes 5.5 s. That’s about 1.6 s quicker.

There’s also a difference in torque: the smart #1 delivers slightly more torque with 584 Nm compared to 515 Nm. That’s about 69 Nm more.

GLB

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, smart #1 is noticeably lighter – 1,780 kg compared to 2,200 kg. The difference is around 420 kg.

Looking at boot space, the Mercedes GLB offers clearly more boot space – 540 L compared to 323 L. That’s a difference of about 217 L.

When it comes to payload, the Mercedes GLB carries barely more – 500 kg compared to 470 kg. That’s a difference of about 30 kg.

Who wins the race in the data check?

The smart #1 is far ahead overall in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £31,700
#1

smart #1

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 272 - 428 HP
  • Consumption kWh/100km : 16.8 - 18.2 kWh/100km
  • Electric Range : 310 - 440 km
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Frequently compared as well

Mercedes GLB
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smart #1

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLB

The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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Reviews Mercedes GLB

3.2 (3 Reviews)
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Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

smart #1

The Smart #1 feels like a breath of fresh air in the compact EV world, pairing playful styling with usable space and a cabin that punches above its size. It skips the fuss and delivers an easygoing, city-friendly driving experience with clever features that make it a sensible, slightly cheeky choice for everyday motoring.

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Reviews smart #1

No reviews yet. Share your experience and help others decide.

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smart #1

Costs and Consumption
Price
50,600 - 62,400 £
Price
31,700 - 45,000 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
15.8 - 15.9 kWh/100km
Consumption kWh/100km
16.8 - 18.2 kWh/100km
Electric Range
614 - 631 km
Electric Range
310 - 440 km
Battery Capacity
-
Battery Capacity
47 - 62 kWh
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
2,200 - 2,280 kg
Curb weight
1,780 - 1,900 kg
Trunk capacity
540 L
Trunk capacity
313 - 323 L
Length
-
Length
4,270 - 4,300 mm
Width
1,861 mm
Width
1,822 mm
Height
-
Height
1,636 mm
Max trunk capacity
-
Max trunk capacity
976 - 986 L
Payload
500 kg
Payload
425 - 470 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
272 - 354 HP
Power HP
272 - 428 HP
Acceleration 0-100km/h
5.5 - 7.4 s
Acceleration 0-100km/h
3.9 - 6.7 s
Max Speed
-
Max Speed
180 km/h
Torque
335 - 515 Nm
Torque
343 - 584 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
200 - 260 kW
Power kW
200 - 315 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,026
Model Year
2,023 - 2,024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
smart
What drive types are available for the Mercedes GLB?

Available configurations include Rear-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.