The Fitbit Charge 3 comes in a full color box that has an integrated hang tag at the top. On the front there is a picture of the device and a reference to small and large sizes. The back has a few in use photos and a short list of some features you can expect. Taking the cover off you will find the Charge 3 neatly stowed with the small band attached. Overall the packaging should keep the Charge 3 safe short of the box being crushed. In the lower section of the box you will find the included larger wristband, proprietary charger, and safety instruction sheet.
As mentioned in the specifications, the fairly large 1.57" grayscale OLED display is located in a durable aluminum housing with a Gorilla glass face. Around the back you will find the sensors for heart rate and SpO2, and the contact points for the proprietary charging cable.
On either side of the housing there are little clips which you need to depress if you change the bands. On the side of the device is the capacitance button to access the display if you don't have it on auto. This button can also be used to navigate back through the menus. There is also another small hole which I assume is for the altimeter.
The band itself is fairly wide at around 23mm, and it has a diamond texture to it. The retention device is a standard clasp made of aluminum and the part that holds the excess band past the clasp has a retention tab built in. This means it doesn't end up sliding all around on you.