Let me start by saying, this little camera packs a punch for its price! I took the TIMNUT 4K Action Camera on my recent biking trip, and here's what I found.

The dual screens are a game-changer - being able to flip between front and back views while recording my ride was incredibly convenient. The touchscreen is responsive, though it can be tricky to use with gloves on.

Video quality at 4K/30fps is impressive for this price range. Footage of my downhill rides came out crisp and detailed, though low-light performance could be better (like most action cams). The 170° wide angle captures everything without that fish-eye distortion some cheaper cameras have.

Battery life is decent - about an hour of continuous recording per battery. Thankfully, the package includes two batteries and a handy charger/case combo. Pro tip: bring a power bank if you're planning all-day adventures!

The waterproof case works as advertised - I tested it snorkeling at about 20 feet and stayed completely dry. Just make sure to lock it properly! The included mounting accessories let me attach it to my helmet, bike handlebars, and even my dog's harness (yes, really).

Now for the downsides: The external mic port shares space with charging (annoying if you want both). And while the stabilization helps, it's not GoPro-level smooth - expect some shake during intense action.

For under $100 though? This is an absolute steal compared to premium brands. It won't replace professional gear, but for casual adventurers or content creators on a budget, the TIMNUT delivers where it counts.