Samsung’s entrance into the fitness market might seem strange, but there’s no doubt it’s an attractive little wearable. Equipped with a 1.84-inch curved display, the device is significantly more beautiful than other activity trackers, which are largely just plastic wrist cuffs you’d see at Hot Topic. So what is this little wearable like on the inside? Turns out the Gear Fit is a wonderfully engineered piece of technology—though don’t expect to fix it yourself.

The teardown shows iFixit doing what they do best, revealing what components Samsung’s stuffed into the tiny little device. That includes: 180 MHz ARM cortex M4 CPU, accelerometer, gyroscope, heart rate sensor, bluetooth 4.0 and a battery that Samsung states is good for 3-4 days. In all, a tidy little package that is one of the most beautiful wearables on the market—and it came from Samsung. Imagine that.

iFixit was able to take the Fit apart by first prying off the screen; the rest of the components are actually attached to the screen, and layered in what iFixit described as an “onion” configuration. Piece by piece, iFixit peels the components apart, revealing a small motherboard, which is populated by an array of chips. When you see how little the device is, and then peruse iFixit’s bullet points, it’s quite impressive how so much was packed into the Fit.

As you can see in the overall layout picture, there’s plenty of technology in Samsung’s Gear Fit, which is aimed to be part smart watch and part activity tracker. Beside Samsung’s Gear 2 and Gear 2 Neo, it’s aesthetically more appealing, though we haven’t yet given all three a proper evaluation to see how they stack up against the competition.

The Fit received a six out of ten in repairability from iFixit, which isn’t an OK score. Users will be able to replace their own battery after a bit of work, though the rest of the device is more trouble than it’s worth. Getting to some of the components risks damaging the LCD, and some of them are soldered onto the main board, which not many people know how to do. Wearables are meant to be durable in the first place, so chances aren’t great—compared to, say, a smartphone—that you’ll bust this one open. But it could be done if you have experience.