Comparison between 70mai Dash Cam 4K A800S and Garmin Dash Cam Tandem.

The 70mai A800S 4K Dash Cam is a high-quality recording solution for drivers, offering 4K recording resolution with a Sony IMX 415 sensor. The camera has a wide 140° field of view and uses a SigmaStar SSC8629G processor. It features Advanced Driver-Assistance Systems (ADAS), a clear 3" screen, and a GPS receiver for speed recording. The A800S is known for its excellent performance in various lighting conditions, capturing detailed footage both during the day and night. It also has a Parking Surveillance mode and can be operated through a dedicated 70mai app.

The Garmin Dash Cam Tandem is a dual-lens dash camera that offers comprehensive coverage with two 180-degree lenses. It features a 1440p resolution for the front camera and 720p for the interior camera. Both lenses provide a wide field of view and are capable of capturing detailed footage. The dashcam is equipped with a G-sensor for impact detection and includes a parking mode. It uses a built-in capacitor instead of a battery, enhancing its heat tolerance. The camera operates without a screen, requiring a smartphone for operation and file retrieval. It supports SD cards up to 512GB. Key features include cloud-enabled, GPS, WiFi, and loop recording, but it lacks a CPL filter and ADAS. The dashcam is known for its high heat and cold tolerance and efficient video storage capabilities​