which action camera to buy

{"title":"2.0\" Display 4k Ultra Hd Sports Camera\u00a0, 12MP 30M Origial EKEN Action Camera","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/fc\/bd\/54c9a44302fe6619f8297e53518a-200x200-1.jpg","attrs":{"Price":"Price Negotiable","Brand Name":"OEM","Model Number":"W9","Minimum Order Quantity":"1","Delivery Time":"3-5 Work Days","Certification":"CE FCC ROHS","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union,Alipay","Supply Ability":"10000Pics\/Month","Packaging Details":"Color Box:20pics\/CTN. Carton Size:47*33*35CM","View Angle:":"170\u00b0A+ HD wide-angle lens","Waterproof:":"30 Meters","Color:":"Yellow(Black, Pink, Silver, White, Blue,Golden)","WiFi Control:":"Support","Input\/Output:":"Micro USB port, HDMI","Image Format:":"12M\/8M\/5M\/2M"}}