The best backup cameras

What we ranked on

A backup camera is unusual among car accessories: most of it lives outside the vehicle, exposed to road spray, salt, pressure washing and the full temperature range. So the criteria are survival criteria first.

• Published ingress rating. IP68 means dust-tight and rated for immersion. An exterior camera without a published rating is an unknown bolted to a bumper
• Published operating range. A bumper goes from below freezing to well over 60 C on hot asphalt
• Signal type. Digital or analog, which decides how it behaves near interference
• Field of view. Wide enough to see a bollard beside the bumper rather than only what is directly behind

What wireless actually means here

That is a genuine saving. A video cable run means pulling trim, threading through a tailgate or hatch grommet, and leaving a service loop at the hinge — the same job as a dual-channel dash cam rear camera, described in best dual channel dash cams.

The trade is latency and reliability. Any digital link — the LeeKooLuu uses a pre-paired Bluetooth pairing, others use 2.4 GHz — is far better than the analog kits that dominated this category, because analog picks up interference as rolling bars and snow. But any wireless link can drop, and a picture that stutters at the moment you are reversing toward something is worse than a slightly harder install.

Resolution is not the specification that decides this

Backup cameras are sold on pixel count, and it is close to the least important number in the category. Kits from 720p up to 1080p all do this job, and the reason is what you are asking the image to do.

A dash cam has to resolve a license plate on a moving car — fine, high-contrast detail at distance, which is genuinely demanding. A backup camera has to show you that there is a bollard, a child's bike or a wall within a few feet of your bumper. That is a large-object, short-range task.

What matters more than pixel count is low-light behavior, because reversing happens in driveways at night and in dark parking structures. That is the one place the LeeKooLuu is weaker than its specification sheet suggests: it says “night vision” and publishes no image sensor part number, which is a word where a figure would be more useful. AUTO-VOX publishes the sensor on the V5PRO. The same argument runs through dash cam resolution explained.

The alternative: a mirror cam that also records

If you want a reversing view and a dash cam, a mirror unit does both from one install. Its rear camera doubles as a live backup display, which no conventional dash cam offers.

The trades are real. AUTO-VOX states card support up to 64 GB on the V5PRO, which across two channels is a short footage window. It publishes no operating-temperature ceiling on a device sitting at the top of the cabin against the glass. And one failure takes both your mirror and your camera.

Full comparison in best mirror dash cams. The short version: buy a mirror cam for the backup display, buy a conventional camera for the footage.

Installing it, and the two cautions

The camera mounts above the plate, on the plate bracket, or in a tailgate handle recess depending on the kit. The power feed splices into the reverse light circuit so the system wakes when you select reverse.

• Splice properly. A twisted-and-taped joint in a tailgate is a joint in a wet, flexing environment. Use a proper connector and seal it
• Leave a service loop at the hinge. A tailgate flexes its wiring every time it opens, and that is where these fail
• Aim it before you tidy the cable. Enough bumper in frame to judge distance, enough ground to see a low obstacle. Check the actual picture, not the mount angle
• Mount the monitor out of your forward view. The same obstruction reasoning as any windshield device — where to mount your phone in a car

Anything requiring you to remove pillar trim on a car with curtain airbags is not casual trim removal — the tiers are set out in what car accessories can you install yourself.

What a backup camera does not replace

It is an aid, not a substitute for looking. A camera has a fixed field of view and shows you nothing approaching from the side until it is already behind you, which is exactly the scenario in a parking lot. It also will not beep at you when your eyes are over your shoulder rather than on the screen, which is what ultrasonic parking sensors are for.

It also does nothing about the rear view while driving. If your rear visibility is poor because the trunk is loaded above the parcel shelf, that is a packing problem — how to pack a car for a road trip.

And a camera lens on a bumper gets filthy faster than any other glass on the car, because it sits directly in the road spray thrown up behind you. A picture that has gradually gone milky is usually a dirty lens rather than a failing camera — wipe it when you do the windows, how to clean car windows without streaks.