C90 Ultra smartwatch 2030 4G with Sim Card is another new 2023 smart watch that supports Bluetooth calling at a low price. It is a sporty smartwatch that got a square design with a 1.85-inch large OLED screen and is equipped with several features including a heart rate monitor, SPO2 blood oxygen monitor, multi-sport modes, and supports NFC Access control. As you can see in the picture above, this new C90 Ultra smartwatch 2030 4G with Sim Card watch comes in a square shape that looks stylish, fashionable.
Measuring 49*44*14.4mm and weighing about 50g. There are two physical buttons on the right side of the case. It is responsible for the function of turning on the running back. The reverse side of the device received a typical configuration – there are magnetic contacts for charging and a heart rate sensor.