The CarRundown verdict.

We recommend the S4W for RV and trailer owners who want an occasional auxiliary rear or hitch view without routing a long video cable or adding a dedicated display. Its battery-powered camera sends the view to a phone through AUTO-VOX’s app, and the seller lists a solar panel, magnetic mount and phone-side recording. The tradeoff is the phone connection: the manual requires Android 10 or iOS 13, Wi-Fi and Bluetooth, recommends keeping the phone close for a steadier connection, and notes that waking from sleep can take several seconds. Confirm the mounting surface and test the exact phone-and-camera position before relying on the view.

The S4W is a phone-first backup camera rather than a dash cam or a monitor-based reversing kit. AUTO-VOX sells a camera-only package and a separate camera-plus-phone-mount option. That makes the camera-only version a compact choice for occasional backing or hitch positioning when you can use a compatible phone as the display. Its local wireless connection and rechargeable camera avoid a long video cable, but the solar panel still connects to the camera and the phone needs to stay within a useful range.

The details that matter.

Exact packageS4W camera-only option · variant 49099034886366 · SKU BCAM-S4W. The separate camera-plus-phone-mount option is a different variant.
DisplayUses the AUT View mobile app as the screen; the camera-only package does not include a dedicated monitor.
ConnectionThe manual lists Wi-Fi 5 and Bluetooth 5.0. It says the camera does not connect to an external network and advises keeping the phone close for a steadier view.
Phone compatibilityThe S4W manual lists Android 10 or newer and iOS 13 or newer. Wi-Fi and Bluetooth must be enabled for camera pairing.
CameraAUTO-VOX lists 1080p capture, a 95-degree view and infrared night vision. These are manufacturer specifications; no sample footage was assessed.
PowerThe product page lists a 5000mAh rechargeable camera battery and solar assistance. It advertises up to 20 days without solar and up to 6 months with solar, without stated test conditions.
MountingThe camera uses a magnetic base. AUTO-VOX says a flat metal sheet is included for suitable non-magnetic surfaces; the manual calls for a clean, dry attachment surface and direct sunlight for the solar panel.
RecordingThe app can save video and screenshots to the phone. The product page does not describe continuous dash-cam loop recording for this model.
Listed price$129.99 USD for the camera-only variant on AUTO-VOX’s US page on October 31, 2026. The product page showed sold-out/pre-order messaging while the public Shopify feed marked the variant available, so current orderability is unclear.

What stands out

  • A phone-based view avoids adding a dedicated reversing monitor to the dashboard.
  • The rechargeable camera and magnetic base can suit a portable setup or occasional hitch-positioning use.
  • The app can save selected video and still images to the phone, according to AUTO-VOX.
  • The package has a distinct camera-only option as well as a separate phone-mount bundle.

Before you buy

  • A compatible, nearby phone is part of the viewing system; the manual says waking from sleep can add several seconds and the connection does not use an external network.
  • The manual says simultaneous viewing on multiple phones is not supported. This is a one-phone-at-a-time camera view, not a shared remote-monitoring setup.
  • Magnetic mounting needs a secure metal surface or the included flat metal sheet. Check the exact body panel and adhesive location before driving.
  • Solar runtime figures are seller estimates without stated test conditions. The manual says to place the solar panel in unobstructed sunlight and also describes USB charging.
  • The product page showed sold-out/pre-order messaging while the public product feed marked the camera-only variant available on October 31, 2026; ordering status needs a fresh check.
  • SEBASTIANBASSOL is listed for 12% off eligible AUTO-VOX purchases. No after-code amount is shown.

Choose a phone view when you do not need another screen

The S4W sends its rear-camera view to AUTO-VOX’s AUT View app instead of a dedicated dash display. That can make sense for occasional backing or aligning a trailer hitch when you already have a compatible phone ready. It is a different job from a dash cam: AUTO-VOX describes saving selected video and screenshots to the phone, but the product page does not list continuous road-event recording or loop overwrite for this model. If you want an always-visible in-car monitor or a dash camera that records while driving, choose that system directly.

Treat the phone connection as part of the installation

The manual calls for iOS 13 or later, Android 10 or later, and both Wi-Fi and Bluetooth. It says the phone should stay close to the camera for a more stable connection and reduced latency. The camera uses a local connection rather than an external network, and AUTO-VOX says two phones cannot view it at the same time. A long-distance range claim on the sales page is not a reason to place the phone across the campsite; test the actual camera, phone and vehicle layout before using the view while maneuvering.

Confirm the metal surface and solar-panel position

The camera attaches magnetically. AUTO-VOX says the package includes a flat metal sheet for a suitable non-magnetic surface, while the manual instructs buyers to clean and dry that surface before applying the sheet. A separate screw-down base is also described, so the camera is portable but every mounting choice is not tool-free. The solar panel has its own adhesive attachment and needs an unobstructed sun-facing location; the manual says to allow the adhesive to set and to disconnect the panel and cover the charging port when washing the vehicle.

Use the battery claims as planning estimates

AUTO-VOX lists a 5000mAh camera battery and advertises up to 20 days without solar assistance or up to six months with the panel. Those are seller claims without disclosed test conditions. The manual separately describes USB charging and gives an approximately 6.5-hour charge time. Expect sunlight, sleep behavior, weather and how often you wake the camera to affect maintenance; do not treat the longest figure as a guaranteed runtime.

Match the saved footage to the job

The product page lists 1080p capture, a 95-degree view and infrared night vision, and says the app can save a video or screenshot to the phone. These are manufacturer specifications, not independent footage results. If detail, view width or night image quality is important for a particular trailer or parking space, ask for sample footage from the exact camera and position it as it will be used. Keep mirrors and direct observation in the routine; this camera provides one selected view.

Check the package, code and current order status

This review covers the camera-only S4W variant 49099034886366, SKU BCAM-S4W, listed at $129.99 USD on October 31, 2026. AUTO-VOX also lists a separate camera-plus-phone-mount option. The product page showed sold-out/pre-order messaging while its public variant feed marked the camera-only option available, so confirm current orderability. The partner record lists SEBASTIANBASSOL for 12% off eligible purchases, so there is no after-code price.

A good fit for

RV and trailer owners who want a portable auxiliary view for occasional backing or hitch positioning, have a compatible nearby phone, and can secure the magnetic or metal-plate mount on their actual vehicle.

Consider another option if

Drivers who want a dedicated always-visible monitor, continuous dash-cam recording, simultaneous viewing on multiple phones, or a confirmed long-range connection and runtime without first checking their setup.

Your questions, answered.

What is the discount code for the AUTO-VOX S4W Solar Magnetic WiFi Backup Camera?

The AUTO-VOX discount code is SEBASTIANBASSOL for 12% off on eligible purchases at www.auto-vox.com. Check the exact item and final total at checkout. The official S4W · Backup Camera · SKU BCAM-S4W price was $129.99 in US on October 31, 2026. Eligibility for this exact variant and interaction with store offers are not recorded, so no after-code amount is shown.

Which phones work with the S4W?

The AUTO-VOX manual lists Android 10 or newer and iOS 13 or newer. It uses the AUT View app and requires Wi-Fi and Bluetooth to be enabled.

Does the S4W need internet access?

The manual says the camera connection does not use an external network. Keep the phone near the camera and test the actual vehicle layout; the manual says the connection may take several seconds to wake from sleep.

Can two phones watch the camera at the same time?

No. AUTO-VOX’s manual says the product does not support simultaneous online viewing on multiple mobile devices.

Can I use SEBASTIANBASSOL on this S4W package?

The partner record lists SEBASTIANBASSOL for 12% off eligible purchases. Check the exact cart; no after-code price is shown.

Is the camera-only version available now?

On October 31, the product page showed sold-out/pre-order messaging while the public variant feed marked the camera-only SKU available. Those signals conflict, so check the live listing before ordering.

Product specifications checked against AUTO-VOX S4W official product page on October 31, 2026 and the AUTO-VOX S4W English manual. Recommendations are our editorial assessment. Our editorial standards.