Amazon.com : SJCAM SJ4000 Action Camera 4K30fps WiFi Camera, 40MP UHD image, 170°FOV 5X Digital Zoom, Stabilization, Underwater 98ft Waterproof Camera with 2 Batteries,32G SD Card and Helmet Mount Accessories Kits :
GoPro Hero 4 Silver vs sjCam 4000 (Settings and Features) - YouTube
SJ4000 vs GoPro Hero 4 Silver - YouTube
Three Entry-Level GoPro-type action cameras reviewed – Pretzel Logix
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Compare SJCAM SJ4000 Sports & Action Camera vs SJCAM SJ8 Pro Sports & Action Camera - SJCAM SJ4000 Sports & Action Camera vs SJCAM SJ8 Pro Sports & Action Camera Comparison by
Very Affordable GoPro Alternative : XBase SJ4000 WiFi HD Action Camera, Available at Expansys.PH! What's Inside The Box? - TechPinas
Emerson ActionCam Vs Gear Pro GDV285 Vs Tronsmart SJ4000 Vs GoPro Hero Vs GoPro HERO3 White Edition Side-by-side Comparison
Emerson ActionCam Vs Gear Pro GDV285 Vs Tronsmart SJ4000 Vs GoPro Hero Vs GoPro HERO3 White Edition Side-by-side Comparison