Bestbuy offers Vantop - HF612 12" 2.5K Front and Rear Mirror Dash Cam with Built-in GPS and Voice Control for $59.99 (orig. $169.99) with free shipping.

Product Description:
Large wide-angle with a super clear lens help to eliminate the blind spots of your vision, all the situations around the car could be checked at any time. Provide your safety perspective whether on a short-distance trip or on a long-distance journey.
Features:

• 12'' IPS Full Touchscreen
  12'' IPS full-touch-screen with 1280x320 display resolution, everything you see is rich and vibrant and you’re going to love what you see.
• Smart Voice Control
  Now you can launch essential operations with voice commands during the driving. Say goodbye to manual operation and just command it.
• Superb Night Vision
  With Sony Starvis IMX335 sensor, to capture every necessary detail at night. Add a layer of protective barrier for night driving.
• Loop Recording
  Continuously recording, the HF612 mirror dash cam is always ready in an instant, as the oldest videos will be replaced by the newest videos when the memory card is full. Important clips can be locked and will not be overwritten, you won't miss a single frame on the road.
• Reliable Surveillance
  With the parking monitor function, it will automatically start to record a 20S locked video when vibration is detected, guard your car 24/7 as reliable parking surveillance.