Engadget guide: check car, port and iOS before buying a wireless CarPlay adapter
Adapters costing $30–$50 can turn wired CarPlay wireless, but car fit, port type and iOS support need checking first, Engadget says.
The adapters act as a bridge between a car's infotainment system and an iPhone, converting the USB-based CarPlay link into a wireless one over Wi-Fi and Bluetooth. Engadget said the change lets drivers place their phone anywhere in the car, and that no new vehicle or head unit is needed in most cases.
The first check is whether the car already has CarPlay built in. The adapters only convert an existing USB CarPlay connection, according to the guide, and cannot add CarPlay to a vehicle that lacks it; owners of such cars would need a portable CarPlay display instead. Engadget recommends looking for a compatible-vehicle list in the product description or checking car forums, citing Amzfeel's claim of support for more than 800 models.
Buyers should also match the adapter to the car's port. Older vehicles generally have USB-A ports and newer ones may have USB-C, so choosing the matching version avoids adding a separate USB adapter to the setup.
Software support is a further consideration. Engadget said some adapters do not receive firmware updates and can stop working after an iOS update, so buyers should confirm compatibility with the iOS version their iPhone runs and, where possible, pick a model that can be updated.
Among features that affect daily use, the guide lists auto-reconnect, which starts wireless CarPlay automatically after the initial pairing instead of requiring a manual connection each time the car is started. Adapters supporting 5GHz Wi-Fi and at least Bluetooth 5.0 are described as offering more reliable performance than cheaper units built on older wireless standards, which can suffer lag and interference.
Engadget said not every adapter works with steering-wheel controls or hands-free Siri, and buyers who share a car should choose a model that stores multiple paired iPhones. More expensive adapters add extras such as video streaming apps or Android Auto support.
Most adapters sit in the $30 to $50 range, such as those from Ottocast, with prices rising for models carrying more features, according to the guide. Engadget's advice to buyers was that a well-reviewed adapter should work with a compatible car and iPhone.