The iX’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Wagoneer S doesn’t offer pre-crash pretensioners.
Both the iX and Wagoneer S have child safety locks to prevent children from opening the rear doors. The iX has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Wagoneer S’ child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The BMW iX has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Wagoneer S doesn’t offer a front passenger side knee airbag.
The iX’s standard pretensioning seatbelts also sense rear collisions and remove slack from the front seatbelts to help protect the occupants from whiplash and other injuries. The Wagoneer S doesn’t offer a whiplash protection system.
The iX has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Wagoneer S doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Full-time four-wheel drive is standard on the iX. Full-time four-wheel drive gives added traction for safety in all conditions, not just off-road, like the only system available on the Wagoneer S.
Both the iX and Wagoneer S have rear cross-traffic warning, but the iX has Cross Traffic Warning with braking function (automatically applies the brakes) to better prevent a collision when backing near traffic. The Wagoneer S’ Rear Cross Path Detection doesn’t automatically brake.
Both the iX and the Wagoneer S have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, 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, rear cross-path warning, driver alert monitors and available around view monitors.