Thought I input my thought on the ones i have trialed. not a very good review. Jeez i suck in writing,,,
Vehicle Blackbox DVR W100
PRODUCT SPECIFICATION Item Specification Image Sensor 1/3.2 5Mp CMOS sensor Lens Focus 132 degree wide angle Lens, Fixed Rotating 270 Degree rotating,you can record inside or outside of the car LCD Display Size 2.0 inch TFT(4:3) TF storage card slot External TF Card (Up to 32G) Image File Type JPG Resolution 5M Video File Type AVI Resolution Front Camera: 1920x720P - 20fps/30fps Back Camera: 1280x720P - 30fps Loop Recording Time
Off/1 Min/2 Min/3 Min Motion Detection Enable/Disable Frequency 50Hz/60Hz Format Yes/No Default Yes/No
Language English/Russian/Deutsch/Spanish/Italian/Portuguese/Japanese/Korean Date/Time Set system time TV Output HDMI USB USB 2.0(High Speed) TV Output HDMI Battery Built-in Lithiumion Battery Starts Automatically After the car starts, the machine boots and starts recording automatically System Requirement Windows 2000/xp/visat/Win7/,above MAC OS x10.3.6
Price: approx $150
Pros:
Dual Camera
Small unit
Cons
Bad video recording when dark
Rear end facing camera pointless when you have dark tint
Abee V31
Specification:
http://www.abee.com.tw/PRODUCTS_V31-1.html
Q&A
http://www.abee.com.tw/SERVICE_V31.html
Videos
http://www.google.com.au/search?num=50&hl=en&safe=off&client=firefox-a&hs=tOl&rls=org.mozilla%3Aen-US%3Aofficial&channel=fflb&q=abee+v31+youtube&oq=abee+v31+youtube&gs_l=serp.3...55883.56942.0.57063.8.8.0.0.0.0.101.423.5j2.7.0...0.0...1c.5IF6gMeDQd4
Approx: $200
Pros:
Good quality recording day and night
Small unit
Many functions
Cons:
Single Camera
Both unit is easy to install, plug and play.
Easy to extract files - micro SD car reader.
Both unit do not have GPS built in.
i personally prefer Abee V31. suits me better.