Z-Edge-----From Zero to Hero Z-Edge Z3 ,the new pick for the best dam cam by Wirecutter. According to the WIRECUTTER (Feb 23, 2016), Z-Edge Z3 wins the competition because of its great image quality with great video quality in the wide 2560x1080-pixel format across a range of difficult outdoor light and reliable, automatic operation . Other Features: Higher configuration: While most dash cams in the market are based on Novatek chips, the Z-Edge Z3 is built on high end Ambarella A7 processor, features higher stability on seamless recording. The OV4689 Color CMOS image sensor captures video in 1296P resolution. Loop Recording: Automatic seamless video recording in loop to use the storage efficiently, with the earliest unlocked video clips being overwritten when reaching the storage card's maximal capacity. Customizable video clip length of 1, 3, and 5 minutes. Ignition detection: The device is automatically turned on and recording when the engine starts, and automatically turned off shortly after the engine is off (working for most Car Models except those always having power supply in the cigarette lighter even when the engine is off). Motion detection: The device automatically pauses video recording after the vehicle stops moving for some time, and automatically resumes recording when the vehicle starts to move. Crash detection: Highly-sensitive G-sensor powered automatic video recording and video file locking when a collision or crash is detected. The sensitivity of the G-sensor can be set to low, mid and high levels. Vibration detection: In parking, the device is automatically turned on and recording when a vibration is detected. Wide Dynamic Range (WDR) Technology:the car dvr's range is extended to cover a greater span between bright and dark areas in the image.