70 Mai A500S Rearview Mirror Dash Cam with Sony Sensor and Wi-Fi Connectivity

Replacing your standard interior mirror, the 70 Mai A500S dash camera provides a streamlined and integrated solution for recording your journeys and monitoring your parked vehicle. Its design mounts securely over your existing rearview mirror, minimising dashboard clutter and offering a less obtrusive recording point than traditional suction-cup models. The core of its performance is the Sony MX335 image sensor, engineered to deliver clearer footage in various lighting conditions, from bright daylight to lower-light evening drives. This dash cam records continuously while driving and can be set for parking surveillance, giving drivers a source of reliable video evidence should an incident occur on the road. Connecting directly to your smartphone via its built-in Wi-Fi, the A500S makes reviewing and sharing footage straightforward without removing the memory card.

Video Performance and Recording Features

The 70 Mai A500S is built around key specifications that define its recording capability and user experience. Its video output and sensor technology are central to providing usable evidence, while connectivity and automated features enhance its practicality for daily use.

Sony Sensor and High Resolution

Equipped with a Sony STARVIS MX335 sensor, this dash cam is designed to capture detailed imagery. The sensor's performance aids in producing clear license plate recognition and scene details, which is crucial for insurance or legal purposes. The device records at a primary resolution of 2592x1944 pixels, often referred to as 2.5K, offering more detail than standard 1080p recorders. For final saved files, particularly those locked by the G-sensor, footage is encoded at a post-recording resolution of 1920x1080 pixels (Full HD), balancing detail with efficient file size for storage on the microSD card.

Wide-Angle Lens Coverage

A six-element glass lens with a 140-degree field of view and a bright F1.8 aperture is fitted to the A500S. This wide angle captures multiple lanes of traffic, roadside details, and a significant portion of your vehicle's immediate surroundings, reducing blind spots in the recorded footage. The wide aperture allows more light to reach the sensor, which helps maintain image quality during dawn, dusk, or in tunnels.

Wi-Fi and App Control

The integrated Wi-Fi module (802.11 b/g/n) creates a direct wireless network between the dash cam and your smartphone. Using the dedicated 70 Mai app, available for Android 4.4 and above or iOS 10.0 and above, you can view a live feed, playback recorded videos, download clips directly to your phone, and adjust camera settings without physical interaction with the device. This is particularly useful for quickly reviewing an event at the roadside or managing files away from your computer.

Construction and Physical Specifications

The physical build of the A500S determines how it integrates into your vehicle and operates under typical driving conditions. Its dimensions and power system are designed for a permanent installation, while its environmental tolerances ensure reliable function throughout the year.

Compact Mirror-Mount Design

With dimensions of 83mm wide, 60.5mm high, and 37.9mm deep, the A500S is a compact unit that clips over your car's existing interior rearview mirror. This design uses adjustable straps to secure it in place, making it suitable for a wide range of mirror sizes and shapes. The form factor keeps the device centered in the driver's natural line of sight without significantly obstructing the view out of the windscreen.

Power and Temperature Range

The dash cam is powered continuously via your vehicle's 12-volt electrical system using the supplied cable that plugs into the cigarette lighter socket. It requires a 5V/2A input. A built-in 500mAh lithium polymer battery provides enough backup power to complete a recording cycle or shut down properly if external power is suddenly disconnected. The device is rated to operate in ambient temperatures from -10°C to 60°C, covering most climatic conditions experienced inside a vehicle.

Memory and Impact Detection

Video storage is handled by a user-provided microSD card. The A500S supports cards from 16GB up to 128GB in capacity, allowing for extended recording loops before older footage is overwritten. The integrated G-sensor (accelerometer) continuously monitors for sudden changes in movement. In the event of a collision or significant impact, whether while driving or in parking mode, the sensor automatically locks the current video file, marking it as protected to prevent it from being overwritten by the loop recording.

Practical Use and Setup

Understanding how the A500S functions in real-world scenarios helps clarify its role as a driving aid and security device. Its setup is geared towards a permanent installation, and its features are activated based on how the vehicle is being used.

Everyday Driving and Commuting

For daily commutes and general driving, the A500S acts as a constant witness. Once installed and powered on, it begins recording as soon as the vehicle's engine starts. The loop recording function ensures the memory card never fills up, as the oldest unprotected files are deleted to make space for new ones. The high resolution and wide-angle lens work together to document your route, other road users' behaviour, and any traffic incidents you encounter, creating a verifiable record of events.

Parking Surveillance Mode

When configured via the app and provided with constant power (often through a hardwiring kit, not included), the dash cam can enter a parking surveillance mode. In this state, it monitors the G-sensor for impacts while the vehicle is stationary and unattended. If someone bumps your car or attempts to break in, the sensor will trigger and save a recording of the event. This feature provides an added layer of security when your vehicle is parked in public car parks, on the street, or at home.

Post-Incident Evidence Gathering

In the unfortunate event of a collision, the A500S serves a critical forensic function. The G-sensor will have locked the relevant footage, preserving it. You can then use the Wi-Fi connection and smartphone app to immediately review the video at the scene, which can be shared with insurance companies, the police, or other parties involved. The clarity provided by the Sony sensor and high resolution can be instrumental in determining fault and expediting insurance claims.