Every RV backup camera system gets a score from 0 to 100% built from nine factors, which maps onto the 5-point rating shown on the site (a 0% score would be 1.5 stars; a perfect score, 5). Each factor is scored against fixed reference points, not against the other products in the list, so adding a new model never moves another model’s rating. Systems are grouped by link, wireless and wired, and use the same scale in both groups.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per included camera | 25% |
| Resolution | camera video resolution | 20% |
| Field of view | rear camera viewing angle | 10% |
| Monitor | monitor size | 10% |
| Expandability | most cameras the monitor takes | 5% |
| Weatherproofing | camera IP rating | 10% |
| Features | recording, RV prewire fit, full-color night vision, touchscreen and microphone | 10% |
| Signal | wired link, or the maker's on-vehicle wireless range | 5% |
| Warranty | warranty length | 5% |
Where the numbers come from
Camera count, resolution, field of view, monitor size, waterproof rating, range, features and warranty come from the maker’s spec pages or manuals, or the maker’s own copy on a retail listing. Where the maker’s own figures conflict, the figure is left out rather than guessed. Prices are checked at Amazon, and the lowest price at a store the page links to is used.
The factors
Value is the current price divided by the number of cameras in the box, on a log scale, so halving the price always counts the same. $500 per camera scores zero and $50 per camera full marks.
Resolution is the camera’s video resolution: 480p scores zero and 1440p full marks. Monitor resolution is listed but not scored, since most monitors in this group show 1080p or less.
Field of view is the rear camera’s stated viewing angle: 100° scores zero and 170° full marks.
Monitor is the screen diagonal: 4.3 in scores zero and 10 in full marks.
Expandability is the most cameras the monitor takes: one scores zero and four full marks.
Weatherproofing is the camera’s IP rating: IP65 scores 40%, IP66 or IPX6 60%, IP67 or IPX7 75%, IP68 or IPX8 85%, and IP69 or IP69K full marks.
Features is 35% for recording to a memory card, 25% for fitting an RV prewire mount (Furrion or another maker’s), 15% for full-color night vision, 15% for a touchscreen and 10% for a microphone on the camera.
Signal gives a wired system full marks, since a cable can’t drop out. A wireless system is scored on the range the maker quotes with the camera on a vehicle or at speed: 30 ft scores zero and 320 ft full marks. Open-air range claims, and range figures with no label, are shown on the product page but never scored. They are measured with nothing between camera and monitor, and they run several times longer than anything that works through an RV. The signal factor carries a small weight, so no range claim can move a ranking far.
Warranty is the maker’s warranty: 1 year scores zero and 3 years full marks.
What isn’t scored
Monitor resolution, open-air and unlabeled range claims, latency, input voltage, camera power source, night vision range and release date are listed but not scored. Latency is rarely published, and no maker in this group states it in a way that can be compared.
Missing data
If a figure isn’t published, that factor gets the neutral middle score (50) and the product page marks it as estimated. Features score neutral only when none of them is published; a feature the maker doesn’t mention otherwise counts as absent. The exception is warranty: a maker that doesn’t publish one gets no warranty counted, so that factor scores zero, the same as a one-year warranty, and is marked estimated.
Ties and discontinued models
Products are ranked by score within each group. Discontinued models stay listed but rank below every current model and can be hidden with the “Hide discontinued” filter.