RefVid is a reference-to-video studio for product and e-commerce videos. Save a product or a character from 1–5 photos, paste a Shopify or Amazon product link, or start from one photo and let RefVid draw the other angles. Describe a scene or pick a template (360° turntable, unboxing, UGC ad, hero reveal) and generate a 3–30 second video on Kling 4 in which the subject stays the same: the same label, logo, packaging, face and outfit, clip after clip. Put up to three subjects in one shot (a presenter holding your product), continue a clip into the next shot, and add native sound. Runs on Kling 4 by default, with native sound; Kling 3.0 Omni is the cheaper option. Every new account gets a free 5-second video, no card; credit packs from $9.90 and plans from $10/month. No watermark, and failed videos are refunded automatically.