Compare the2025 Infiniti QX50VS 2025 Lexus UX

Safety
Warranty
Engine
Fuel Economy and Range
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Chassis
Passenger Space
Cargo Capacity
Servicing Ease
Ergonomics

Safety

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To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the QX50. But it costs extra on the UX.

The QX50 Sport has a standard Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The UX only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the QX50 and the UX have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras and rear cross-path warning.

The Infiniti QX50 weighs 404 to 661 pounds more than the Lexus UX. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Infiniti QX50 is safer than the Lexus UX:

	QX50	UX
	Driver
STARS	4 Stars	4 Stars
Neck Injury Risk	26%	33%
Neck Stress	245 lbs.	371 lbs.
Leg Forces (l/r)	155/130 lbs.	376/433 lbs.
	Passenger
STARS	4 Stars	4 Stars
Chest Compression	.6 inches	.7 inches
Neck Injury Risk	31%	36%
Neck Stress	161 lbs.	163 lbs.
Neck Compression	48 lbs.	94 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Infiniti QX50 is safer than the Lexus UX:

	QX50	UX
	Front Seat
STARS	5 Stars	5 Stars
Hip Force	306 lbs.	323 lbs.
	Rear Seat
STARS	5 Stars	5 Stars
HIC	73	96
Spine Acceleration	25 G’s	46 G’s
Hip Force	227 lbs.	633 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Spine Acceleration	39 G’s	44 G’s
Hip Force	339 lbs.	919 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Warranty

The QX50 comes with a full 4-year/60,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The UX’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The QX50’s corrosion warranty is 1 year longer than the UX’s (7 vs. 6 years).

Infiniti pays for scheduled maintenance on the QX50 for 2 years and 12500 miles longer than Lexus pays for maintenance for the UX (3/22500 vs. 1/10,000).

Engine

The QX50’s standard 2.0 turbo 4-cylinder produces 72 more horsepower (268 vs. 196) than the UX’s 2.0 DOHC 4-cylinder hybrid.

Fuel Economy and Range

The QX50 has 5.4 gallons more fuel capacity than the UX (16 vs. 10.6 gallons), for longer range between fill-ups.

Brakes and Stopping

For better stopping power the QX50’s brake rotors are larger than those on the UX:

	QX50	UX
Front Rotors	13 inches	12 inches
Rear Rotors	12.1 inches	11.1 inches

The QX50’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the UX are solid, not vented.

The QX50 stops shorter than the UX:

	QX50	UX
60 to 0 MPH	129 feet	137 feet	Consumer Reports
60 to 0 MPH (Wet)	130 feet	143 feet	Consumer Reports

Tires and Wheels

For better traction, the QX50 has larger standard tires than the UX (235/55R19 vs. 225/50R18). The QX50 Sport’s tires are larger than the largest tires available on the UX (255/45R20 vs. 225/50R18).

The QX50 Sport’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the UX’s 50 series tires.

For better ride, handling and brake cooling the QX50 has standard 19-inch wheels. Only 18-inch wheels are available on the UX. The QX50 Sport has standard 20-inch wheels.

The QX50 has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The UX doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

For a smoother ride and more stable handling, the QX50’s wheelbase is 6.3 inches longer than on the UX (110.2 inches vs. 103.9 inches).

For better handling and stability, the average track (width between the wheels) on the QX50 is 3.5 inches wider in the front and 3 inches wider in the rear than the track on the UX.

The QX50 handles at .84 G’s, while the UX AWD pulls only .80 G’s of cornering force in a Motor Trend skidpad test.

The QX50 executes Motor Trend’s “Figure Eight” maneuver 1.4 seconds quicker than the UX AWD (26.7 seconds @ .66 average G’s vs. 28.1 seconds @ .62 average G’s).

For greater off-road capability the QX50 has a 2.3 inches greater minimum ground clearance than the UX (8.6 vs. 6.3 inches), allowing the QX50 to travel over rougher terrain without being stopped or damaged.

Chassis

To almost totally eliminate engine vibration in the passenger area, the QX50 has an electronically controlled liquid-filled front engine mount. A computer-controlled electric current in the liquid changes its viscosity, allowing the mount to dampen the engine completely at all RPMs. The UX uses conventional solid rubber engine mounts.

The QX50 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The UX doesn’t offer active noise cancellation.

Passenger Space

The QX50 has 14 cubic feet more passenger volume than the UX (104.4 vs. 90.4).

The QX50 has 3.8 inches more front headroom, 1.8 inches more front hip room, 2.9 inches more front shoulder room, 2.8 inches more rear headroom, 5.6 inches more rear legroom, 1.5 inches more rear hip room and 4.2 inches more rear shoulder room than the UX.

For enhanced passenger comfort on long trips the QX50’s rear seats recline. The UX’s rear seats don’t recline.

Cargo Capacity

The QX50 has a much larger cargo volume with its rear seat up than the UX (31.4 vs. 17.1 cubic feet).

Pulling a handle automatically lowers the QX50’s rear seats, to make changing between passengers and cargo easier. The UX doesn’t offer automatic folding seats.

Servicing Ease

The QX50 uses gas struts to support the hood for easier service access. The UX uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.

Ergonomics

The QX50’s standard Infiniti Intelligent Key allow you to unlock the doors from any outside door handle, open the cargo door, and start the engine, all without removing the key from the pocket or purse. Smart Access standard on the UX doesn’t offer a sensor on the rear doors, so you’ll have to reach a front handle to unlock the rear door.

The QX50’s standard speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The UX’s standard manually variable intermittent wipers have to be constantly adjusted.

Manual rear side window sunshades are available in the QX50 to help block heat and glare for the rear passengers. The UX doesn’t offer rear side window sunshades.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Infiniti QX50 has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the UX.

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