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Lexus UX vs smart #3 comparison

Compare performance (199 HP vs 272 HP), boot space and price (38,700 £ vs 42,000 £ ) at a glance. Find out which car is the better choice for you – Lexus UX or smart #3?

Lexus UX vs smart #3: Key differences

Lexus UX

4.5 (5 Reviews)
rate
  • very slightly cheaper
  • markedly lighter
details

smart #3

5 (1 Reviews)
rate
  • noticeably more power
  • markedly quicker 0–100 km/h
  • moderately more trunk space
details

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

By Achim Sedelmaier

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

UX

Costs and Efficiency:

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

Lexus UX is very slightly cheaper – starting at 38,700 £ , while the smart #3 costs 42,000 £ . That’s a price difference of around 3,249 £.

#3

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 #3 offers noticeably more power – delivering 272 HP compared to 199 HP. That’s roughly 73 HP more horsepower.

When accelerating from 0 to 100 km/h, the smart #3 is markedly quicker – completing the sprint in 5.8 s, while the Lexus UX takes 7.9 s. That’s about 2.1 s quicker.

UX

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Lexus UX is markedly lighter – 1,495 kg compared to 1,810 kg. The difference is around 315 kg.

Looking at boot space, the smart #3 offers moderately more boot space – 370 L compared to 320 L. That’s a difference of about 50 L.

When it comes to payload, the Lexus UX carries noticeably more – 615 kg compared to 450 kg. That’s a difference of about 165 kg.

Who wins the race in the data check?

The smart #3 is decisively ahead 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.

£41,991
#3

smart #3

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive
  • Power HP 272 HP
  • Consumption kWh/100km 16.3 kWh/100km
  • Electric Range 455 km
details

Frequently compared as well

Lexus LBX
Lexus UX
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Choosing between the Lexus LBX and the Lexus UX means deciding whether you prefer the LBX’s fresh, ultra-compact city focus or the UX’s established track record and slightly roomier cabin. I’ll compare size, efficiency, features and driving feel to help you pick the Lexus that best matches your …
Lexus UX
Toyota C-HR
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The Lexus UX and Toyota C-HR are compact crossovers aimed at urban buyers who want agile packaging and distinctive style. The UX leans on Lexus-level refinement and a premium cabin, while the C-HR emphasizes bolder styling and strong value for money.
Lexus UX
smart #3

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Lexus UX

The Lexus UX is a compact luxury crossover that blends sharp styling with a quiet, comfortable cabin, perfect for urban buyers who want premium feel without shouting about it. It rides with poise, serves up plush materials and thoughtful tech, and—while it won’t satisfy anyone chasing track thrills—it's a smart, stylish choice for everyday driving.

details
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Reviews Lexus UX

4.5 (5 Reviews)
rate
marjollet
10 Feb 2026, 16:56:36

After a Toyota Avensis D4D with a BMW engine, I chose the UX 250h F Sport Design and I'm very satisfied.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Norma
21 Dec 2025, 18:27:57

Lv my UX I live 10 miles outside Belfast do aloy of country driving to reach different places I go t

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

smart #3

The Smart #3 turns the brand's cheeky city-car attitude into a grown-up compact SUV, pairing sleek styling with a surprisingly roomy, well-made interior. It's a brilliant pick for buyers who want electric ease without dullness — practical enough for daily life, but still lively enough to make parking and grocery runs feel a little fun.

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smart-hashtag3-brabus-photon-orange-exterior-mallorca1
smart-hashtag3-brabus-photon-orange-exterior-mallorca13
smart-hashtag3-brabus-photon-orange-exterior-mallorca21
smart-hashtag3-brabus-photon-orange-interior-mallorca10
smart-hashtag3-brabus-photon-orange-interior-mallorca3
smart-hashtag3-premium-ceramic-cream-interior-mallorca7

Reviews smart #3

5 (1 Reviews)
rate
Ronny
16 Oct 2025, 13:10:59

Handsome design, packed with advanced driver‑assist technology and stellar performance — all at an attractive price. Highly recommended, this car!

Frequently compared as well

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ZEEKR X
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Volvo EX30
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Lexus UX
smart #3

Costs and Consumption
Price
38,700 - 54,100 £
Price
42,000 £
Consumption L/100km
5 - 5.6 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.3 kWh/100km
Electric Range
-
Electric Range
455 km
Battery Capacity
-
Battery Capacity
-
co2
113 - 127 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
-
Curb weight
1,495 - 1,555 kg
Curb weight
1,810 kg
Trunk capacity
283 - 320 L
Trunk capacity
370 L
Length
-
Length
-
Width
1,840 mm
Width
1,844 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
555 - 615 kg
Payload
450 kg

Engine and Performance
Engine Type
Full Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
CVT
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
199 HP
Power HP
272 HP
Acceleration 0-100km/h
7.9 - 8.1 s
Acceleration 0-100km/h
5.8 s
Max Speed
-
Max Speed
-
Torque
-
Torque
384 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
146 kW
Power kW
200 kW
Engine capacity
1,987 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
C, D
CO2 Efficiency Class
A
Brand
Lexus
Brand
smart
What drivetrain options does the Lexus UX have?

The Lexus UX 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.