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Mercedes GLA vs smart #5 comparison

Compare performance (421 HP vs 646 HP), boot space and price (38,800 £ vs 39,300 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLA or smart #5?

Mercedes GLA vs smart #5: Key differences

Mercedes GLA

4.6 (3 Reviews)
rate
  • marginally cheaper
  • clearly lighter

smart #5

4.9 (5 Reviews)
rate
  • noticeably more power
  • considerably more electric range
  • a bit quicker 0–100 km/h
  • clearly more trunk space

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

GLA

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLA is marginally cheaper – starting at 38,800 £ , while the smart #5 costs 39,300 £ . That’s a price difference of around 506 £.

As for electric range, the smart #5 offers considerably more range – reaching up to 590 km, about 516 km more than the Mercedes GLA.

#5

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 #5 offers noticeably more power – delivering 646 HP compared to 421 HP. That’s roughly 225 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #5 is a bit quicker – completing the sprint in 3.8 s, while the Mercedes GLA takes 4.3 s. That’s about 0.5 s quicker.

There’s no difference in top speed – both reach 210 km/h.

There’s also a difference in torque: the smart #5 delivers clearly more torque with 710 Nm compared to 500 Nm. That’s about 210 Nm more.

GLA

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLA is clearly lighter – 1,570 kg compared to 2,200 kg. The difference is around 630 kg.

Looking at boot space, the smart #5 offers clearly more boot space – 630 L compared to 435 L. That’s a difference of about 195 L.

For maximum load capacity, the smart #5 offers only slightly more capacity – up to 1,530 L, about 145 L more than the Mercedes GLA.

When it comes to payload, the smart #5 carries very slightly more – 502 kg compared to 500 kg. That’s a difference of about 2 kg.

Who wins the race in the data check?

The smart #5 holds a decisive overall lead 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 £39,300
#5

smart #5

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 340 - 646 HP
  • Consumption kWh/100km : 18.4 - 19.9 kWh/100km
  • Electric Range : 465 - 590 km
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Frequently compared as well

Mercedes B Class
Mercedes GLA
VS
The Mercedes B‑Class is the practical, airy people‑carrier that prioritises space and comfort, while the Mercedes GLA takes the same mechanical smarts and adds SUV looks, higher ride height and a touch more road presence. Pick the B‑Class for family‑friendly sense and efficiency, choose the GLA if …
Mercedes A Class
Mercedes GLA
VS
The Mercedes A‑Class is the sharper, more driver-focused hatch that feels nimble and refined on twisty roads, while the Mercedes GLA trades a bit of agility for SUV practicality with a higher ride height, extra luggage space and a commanding view of the road. Pick the A‑Class for sporty handling, …
Mercedes GLA
smart #5

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLA

The Mercedes GLA blends Mercedes style with compact crossover practicality, looking sharper than its size suggests while still feeling purposeful around town. Inside it serves up premium materials and tech-forward ergonomics, and the composed ride makes it an appealing pick for buyers who want luxury wrapped in a city-friendly package with a wink of adventurous spirit.

details
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Reviews Mercedes GLA

4.6 (3 Reviews)
rate
Gutter
24 Feb 2026, 21:53:27

Super nimble, very impressive power from this 1,300cc mild‑hybrid engine — in town, on the road and on the motorway for this 2025 GLA 180 Style AMG... premium interior!

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Serge
16 Jan 2026, 16:09:11

You have to compare like with like — the GLA should be compared to the Q3, not the Q2 as in your study!

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

smart #5

The Smart #5 continues to build on the brand's legacy of compact and efficient urban vehicles, now infused with a more modern and stylish design. Its sleek appearance is complemented by a spacious interior, offering comfort without compromising its compact nature. This model is ideal for city dwellers seeking a blend of innovation, practicality, and style in their daily drives.

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Reviews smart #5

4.9 (5 Reviews)
rate
Stefan
31 Jan 2026, 22:25:16

I spent a weekend with the Brabus #5 and I’m thrilled! Extremely quiet, even at just under 220 km/h. Very good ride comfort, especially if, like me, you prefer a softer setup for better suspension comfort!
Brutal acceleration that only really hits from about 50 km/h and culminates in a 0–200 km/h sprint in 10.2 seconds… There are almost no cars up to roughly 1,000 hp that are faster!
The actual charging performance is, I believe, the best of any passenger car available in the EU (only Zeekr shows a little more on paper, but probably not in real life) — it charges at peaks up to 425 kW! 10–80% in 13 minutes and 5–100% in 28 minutes.
The fit and finish are in places better than the Mercedes E‑Class...

How do you mainly use this car? (optional): Long-distance driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Stefan
4 Dec 2025, 21:11:24

Apart from the hopefully soon improved/reduced chimes and the horrendously hard-to-reach mute for the speed warning, the car is really a knockout!
Very, very quiet, comfortable, extremely fast (Brabus version), great build quality, great equipment!

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Lexus LBX
Mercedes GLA
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In the realm of premium compact SUVs, the Lexus LBX and Mercedes GLA both deliver a blend of luxury and performance that caters to discerning buyers. While the LBX emphasizes a smooth and refined ride with its hybrid powertrain, the GLA offers a sportier edge and more dynamic handling. Ultimately, …
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In the competitive compact SUV segment, the Mercedes GLA stands out with its luxurious interior and advanced technology, appealing to drivers who prioritize comfort and style. In contrast, the VW T-Roc offers a more playful design and offers a practical, user-friendly experience, making it a strong …
Mercedes GLA
smart #5

Costs and Consumption
Price
38,800 - 75,300 £
Price
39,300 - 52,200 £
Consumption L/100km
2.9 - 9.5 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.4 - 19.9 kWh/100km
Electric Range
74 km
Electric Range
465 - 590 km
Battery Capacity
12.9 kWh
Battery Capacity
74.4 - 94 kWh
co2
66 - 216 g/km
co2
0 g/km
Fuel tank capacity
35 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1,570 - 1,810 kg
Curb weight
2,200 - 2,378 kg
Trunk capacity
385 - 435 L
Trunk capacity
630 L
Length
4,412 mm
Length
4,695 mm
Width
1,834 - 1,849 mm
Width
1,920 mm
Height
1,616 mm
Height
1,705 mm
Max trunk capacity
1,385 L
Max trunk capacity
1,530 L
Payload
480 - 500 kg
Payload
475 - 502 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel, Petrol
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 421 HP
Power HP
340 - 646 HP
Acceleration 0-100km/h
4.3 - 11 s
Acceleration 0-100km/h
3.8 - 6.9 s
Max Speed
210 km/h
Max Speed
200 - 210 km/h
Torque
230 - 500 Nm
Torque
373 - 710 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
85 - 310 kW
Power kW
250 - 475 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2,025
CO2 Efficiency Class
B, E, F, G
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
smart
Is the Mercedes GLA offered with different drivetrains?

The Mercedes GLA is available as Front-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.