To start off our analysis let's delve into the DT.
NO1 Bluetooth Smart Watch with 100+ Watch Faces, also known as the DT3. This smartwatch boasts a 1.36-inch HD screen, Rotary Crown, bluetooth Calling Real-Time PPG+ECG Monitoring, Heart Rate Monitoring, and 100+ Watch Faces. It is compatible with Android system 4.4 version or above and iOS system 8.0 version or above.

One of the principal features of the DT3 smartwatch is its Real-Time PPG+ECG Monitoring and Heart Rate Monitoring capabilities. These functions allow for accurate and continuous tracking of important health metrics. Additionally the watch is IP68 Waterproof, making it suitable for various outdoor activities. The watch also has a Rotary Crown for easy navigation and a wide variety of watch faces to choose from.

To put it simply the DT3 smartwatch has many advantages. It has Real-Time PPG+ECG Monitoring and Heart Rate Monitoring capabilities, is IP68 Waterproof, and has a Rotary Crown for easy navigation. However, it is important to note that some customers have reported issues with the Bluetooth connection to devices and that the ECG monitoring and blood oxygen features have been disabled by the manufacturer due to accuracy issues.

Overall I strongly recommend the DT.NO1 Bluetooth Smart Watch with 100+ Watch Faces for those in need of a reliable and stylish smartwatch with health monitoring capabilities. All things considered, it offers many useful features at an affordable price point. However, potential buyers should be aware of the reported Bluetooth connection issues and the disabled ECG monitoring and blood oxygen features.