Compare the2025 Mercedes EQSVS 2025 Polestar 4

Safety
Warranty
Reliability
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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The EQS’ pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Polestar 4 doesn’t offer pre-crash pretensioners.

The rear seatbelts optional on the EQS inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The Polestar 4 doesn’t offer inflatable seatbelts.

Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The EQS has Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The Polestar 4 doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.

Both the EQS and the Polestar 4 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, front seat center airbag, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, around view monitors, rear cross-path warning and driver alert monitors.

Warranty

There are over 12 times as many Mercedes dealers as there are Polestar dealers, which makes it much easier should you ever need service under the EQS’ warranty.

Reliability

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Polestar vehicles. With 110 fewer problems per 100 vehicles, JD Power ranks Mercedes higher than Polestar.

Engine

The EQS has more powerful engines than the Polestar 4:

	Horsepower	Torque
EQS 450 4MATIC electric motors	335 HP	590 lbs.-ft.
EQS 450+ electric motor	355 HP	419 lbs.-ft.
EQS 580 4MATIC electric motors	536 HP	633 lbs.-ft.
AMG EQS electric motors	751 HP	752 lbs.-ft.
Polestar 4 electric motor	272 HP	253 lbs.-ft.
Polestar 4 electric motors	544 HP	506 lbs.-ft.

Fuel Economy and Range

On the EPA test cycle the EQS gets better mileage than the Polestar 4:

			MPGe
EQS
	RWD	450+ Electric Motor	98 city/98 hwy
	AWD	580 4MATIC Electric Motors	93 city/93 hwy
		450 4MATIC Electric Motors	91 city/93 hwy
Polestar 4
	RWD	Electric Motor	93 city/87 hwy
	AWD	Electric Motors	86 city/80 hwy

The EQS can travel longer on a full charge than the Polestar 4 on a full charge:

			Miles
EQS
	RWD	450+ Electric Motor	390 miles
	AWD	580 4MATIC Electric Motors	371 miles
		450 4MATIC Electric Motors	367 miles
		AMG Electric Motors	315 miles
Polestar 4
	RWD	Electric Motor	300 miles
	AWD	Electric Motors	272 miles

Brakes and Stopping

For better stopping power the EQS’ brake rotors are larger than those on the Polestar 4:

	EQS	AMG EQS CCB	Polestar 4	Polestar 4 Performance Pack
Front Rotors	15.3 inches	17.4 inches	14.3 inches	15.4 inches
Rear Rotors	14.9 inches	14.9 inches	13.8 inches	14.3 inches

The EQS AMG offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The Polestar 4 doesn’t offer ceramic brake rotors.

Tires and Wheels

For better traction, the AMG EQS’ tires are larger than the largest tires available on the Polestar 4 (275/40R21 vs. 265/40R22).

The EQS’ standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Polestar 4’s standard 50 series tires. The AMG EQS’ optional tires have a lower 35 series profile than the Polestar 4 Performance Pack’s 40 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the EQS can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Polestar 4 doesn’t offer run-flat tires.

Suspension and Handling

The front and rear suspension of the EQS uses air springs for a smoother, controlled ride than the Polestar 4, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The EQS has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The EQS’ height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The Polestar 4 doesn’t offer a load leveling suspension.

The EQS’ drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The Polestar 4 doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the EQS’ wheelbase is 8.3 inches longer than on the Polestar 4 (126.4 inches vs. 118.1 inches).

For better maneuverability, the EQS’ turning circle is 2.4 feet tighter than the Polestar 4’s (35.8 feet vs. 38.2 feet). The AMG EQS’ turning circle is .5 feet tighter than the Polestar 4’s (37.7 feet vs. 38.2 feet).

Chassis

The design of the Mercedes EQS amounts to more than styling. The EQS has an aerodynamic coefficient of drag of .2 Cd. That is significantly lower than the Polestar 4 (.261) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the EQS get better fuel mileage.

The EQS uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Polestar 4 doesn’t offer active noise cancellation.

Passenger Space

The EQS has .2 inches more front headroom, .2 inches more rear headroom, 3.8 inches more rear legroom and 2.8 inches more rear shoulder room than the Polestar 4.

Cargo Capacity

The EQS has a much larger cargo volume with its rear seat up than the Polestar 4 with its rear seat up (22 vs. 18.6 cubic feet). The EQS has a much larger cargo volume with its rear seat folded than the Polestar 4 with its rear seat folded (63 vs. 54.2 cubic feet).

Servicing Ease

An ASSYST PLUS is standard on the EQS to save the owner time and money by calculating maintenance intervals based on odometer mileage. This takes the guesswork out of keeping your vehicle in top condition and helps it last longer. Polestar doesn’t offer a maintenance reminder on the Polestar 4.

Ergonomics

Unlike the driver-only memory seat and mirrors in the Polestar 4, the EQS has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The EQS’ standard easy entry and exit feature raises the steering wheel and glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the Polestar 4.

The EQS’ optional power side swing out doors make it much easier to load and unload kids and cargo. One touch opens the door, before you even get to the car. The Polestar 4 doesn’t offer a power rear door.

Heated windshield washer fluid is optional on the EQS to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The Polestar 4 doesn’t offer heated windshield washer fluid. Its standard heated washer nozzles will defrost the washer fluid but not the windshield.

The EQS’ power mirror controls are mounted on the armrest for easy access. The Polestar 4’s power mirror controls are embedded in the infotainment system, seriously distracting drivers who have to adjust them while driving.

The EQS has standard front air conditioned seats and offers them optionally in the rear. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The Polestar 4 doesn’t offer air-conditioned seats in the rear.

Both the EQS and the Polestar 4 offer optional massaging front seats. The EQS also offers optional massaging rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging rear seats aren’t available in the Polestar 4.

Compared to the Polestar 4, the Mercedes EQS eliminates the need for separate garage door openers and associated risks of losing, breaking, or having dead batteries with its standard integrated Homelink® universal remote controlled from the rear view mirror.

Both the Mercedes EQS and the Polestar 4 have a standard Qi wireless phone charging system in the front seat. To easily keep personal devices charged in the rear seat, without cables tangling and wearing out, the EQS also has a standard wireless charging system in the rear seat. The Polestar 4 does not.

The EQS’ Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. Remote Parking Assist will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The Polestar 4 doesn’t offer an automated parking system.

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