Insta360 has a new compact action camera, the GO Ultra, which shoots 4K at 60fps with an improved sensor for low light. The tiny hands-free unit weighs in at just 1.87 ounces — 3.8 ounces with the screen-equipped Action Pod. While that’s slightly heavier than the Insta360 GO 3S, it has a 1/1.28-inch image sensor — more than 2x larger than that of its predecessor — and is powered by a 5nm AI chip that “delivers imaging previously impossible in the GO series,” according to Insta360. The f/2.85 aperture has a 14.27mm focal length and captures photos at up to 50MP.

With a list price of $450, the GO Ultra is $50 more than last year’s GO 3S, but “is still a much smaller action camera than alternatives like the DJI Osmo Action 5 Pro and even Insta360’s own Ace Pro 2,” The Verge reports.

The GO Ultra has a built-in magnetic base, allowing for creative mounting options. It comes with a metal pendant that lets you wear the device on your chest and also comes with a magnetic clip that hooks the camera to helmets or hats.

“Compared to the straitjacket of a GoPro chest mount or hanging a camera from one of the competing company’s stick-on adhesive mounts, the GO Ultra is less of an encumbrance,” Gizmodo writes.

As for the camera itself, it has a new square form-factor that updates the classic oblong Insta360 look.

While the GO 3S also supports 4K, the GO Ultra doubles its frame rate. The larger sensor is the same size used in the Insta360 X5 360-degree action camera. The GO Ultra also has a new ambient light sensor that The Verge suggests “should help improve the look of footage captured in low-light situations,” something the company claims a process called PureVideo will also improve by reducing visual noise.

The new action cam also accommodates a larger 500mAh battery that Insta360 says will last for 70 minutes of recording, or as long as 200 minutes synced to the Action Pod. But that’s at 1080p/24fps with the screen off, The Verge writes, noting that “at 4K/60fps recording times on a full charge will potentially be shorter.”

The GO Ultra uses microSD cards up to 2TB for storage and is waterproof to depths of 33 feet.

TechRadar touts “easy AI-editing from [the] Insta360 app” and the flexibility to go where an iPhone can’t, suggesting users will “get drawn in by the fun magnetic system and tiny size, and be genuinely impressed by the quality of the 4K footage.”