Question 1

Is the installation complicated, especially for the parking mode and 4G features?**

Accepted Answer

For basic operation (front camera recording while driving), installation is straightforward—just plug into your car's 12V socket. However, to use the **Parking Mode** (motion/collision recording when parked) and the **4G LTE module** for remote viewing, it requires a more involved setup. Parking Mode needs the optional hardwire kit connected to your car's fuse box, which many DIY-savvy users handle, but others prefer professional installation. The 4G module plugs in separately and requires an active data SIM card. It's a powerful system, but best suited for those comfortable with a bit of car electronics or willing to hire an installer.

Question 2

How good is the video quality, really, especially at night?**

Accepted Answer

The video quality is the most praised feature. The 4K front and 1080p rear cameras use Sony STARVIS 2 sensors, which excel in low light. In practice, this means license plates and road signs remain clear and readable in most nighttime driving conditions, a common pain point with cheaper dash cams. Daytime footage is exceptionally sharp and detailed, providing excellent evidence-grade video.

Question 3

I've heard the app is slow. Is it still usable?**

Accepted Answer

This is a common mention in user reviews. The 70mai app is functional for changing settings, live view, and receiving 4G alerts, but **transferring recorded videos to your phone over WiFi can be slow**. It's best for quick clips rather than full journeys. Most users manage this by occasionally removing the microSD card to transfer files directly to a computer for important footage. If instant, seamless video transfer to your phone is a top priority, this is a consideration.

Question 4

Does the included 128GB card last, and what about battery drain from Parking Mode?**

Accepted Answer

The included card is a good start, but as some experienced users note, dedicated **High-Endurance** microSD cards are recommended for the constant read/write cycles of a dash cam for maximum longevity and reliability. Regarding battery drain: the Parking Mode is designed to be low-power and uses a voltage cutoff (adjustable in the app) to prevent draining your car battery. When hardwired correctly, it will automatically shut off if your battery voltage drops to a preset safe level, giving you protection without the worry of a dead battery.

Question 5

Who is this dash cam really best suited for?**

Accepted Answer

The A810S is ideal for drivers who prioritize **top-tier video evidence** and want a comprehensive **all-in-one security system** (4G remote alerts, parking monitoring) above all else. It's perfect for tech enthusiasts who don't mind a complex setup. It might be overkill for someone who just wants simple, basic recording without fuss. If your main needs are crystal-clear video and robust parking surveillance, and you can work around the app's transfer speeds, it represents outstanding value.

70mai 4K Dash Cam Front and Rear A810S, 4K+1080P Dual STARVIS 2, HDR Car Dash Cam with Night Vision, WiFi APP Control, 146°Wide Angle, 4G LTE, ADAS, Parking Mode with Voice Control and 128GB SD Card

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