Like most smartwatches on the market, the GTS 4 mini has a rectangular metal frame with slightly rounded corners. The watch weighs just 19 grams, making it extremely light, and you can barely feel its weight when you wear it on your wrist. We wouldn’t call it the highest-quality watch, though, as we’ve seen watches in this price range that feel better. As for the quality of the bracelet, it is very nice. We had no problems wearing the watch for a long time, but you have to find the right fit for your wrist or it might feel a bit scratchy on your skin. Also, you can easily swap out the strap for another one that you prefer. If we had anything to complain about, it would have been nice if the power button/function button doubled as a digital crown, which would have improved the overall experience of the watch. On the back of the watch are the SpO2 and heart rate sensors, as well as two magnetic pins for quick charging of the watch. The watch is also 5 ATM water resistant, so you can easily take it swimming or dive into water up to 50 meters deep. The display of the GTS 4 mini is a small step up from its predecessor, the GTS 2 mini. The screen size has increased from 1.55 to 1.65 inches, and the resolution has improved slightly. It is still an AMOLED display that supports the “Always on Display” feature. The display is by far one of our favorite aspects of the GTS 4 mini. It is sharp, vibrant, and sufficiently bright that you can easily read the time even outdoors in direct sunlight. However, the display is not perfect. Since the display does not update at 60 Hz, we often felt that the clock was a bit slow and did not respond smoothly to our touches/taps. Even though the edges around the display are a bit thick, they don’t detract from the overall experience as the deep AMOLED blacks blend well with the black edges. When we first received the watch, the always-on display worked great and automatically turned off at night according to our schedule. But that soon changed: the AOD no longer turned off automatically at night, and even when we tried to disable the AOD altogether, it stayed on. No sooner said than done: A quick factory reset fixed our problem.