1.25 OZ (35.7G) & Thumb Size: The Sxmou 3 4K small action camera is very compact, smaller than a thumb, weighing only 1.25 oz (35.7g). You can mount it on your body and you won't even notice its existence, it blends in seamlessly with you. It provides an amazing experience. Mountable Anywhere: The 3 action camera features a magnetic design, allowing you to attach it to ferrous metal. 131-foot Deep Waterproof: This mini camera includes a waterproof case, you can take the camera underwater up to 131 feet (40 meters), perfect for diving, snorkeling, and surfing. Remember, without the case, the camera itself is not waterproof. 4K Hands-Free Recording: Take your video with you, free your hands, record 4K POV video, capture exciting moments with your family, children, pets, and friends. Suitable for outdoor activities such as cycling, motorcycles, etc. 150 Minutes Battery Life: This mini 4K action camera comes with a rechargeable 800mAh lithium-ion battery for extended use time. 1080P mode can continuously record 150 minutes of video, 2K mode 120 minutes, 4K mode 90 minutes. In addition, the camera supports recording while charging, so you can meet your long-term recording needs without interruption.