The Watch S3 Bluetooth is a Xiaomi smartwatch with a 1.43-inch round AMOLED display, resting on a 5 ATM water-resistant design in black with a stainless steel bezel and a fluoroelastomer strap, both replaceable. Its Xiaomi HyperOS operating system offers smooth performance and more intuitive interaction, and it can be connected to your phone via Bluetooth to make and receive calls. In addition to being a fashion and technology accessory, the Xiaomi Watch S3 stands out as an advanced fitness tracking device thanks to its built-in GPS, over 150 workout modes, and precise 12-channel module for detecting heart rate. All this with a 486 mAh battery capable of providing up to 15 days of typical use. 1.43-inch round AMOLED display Let's start by exploring the 1.43-inch round AMOLED display of the Xiaomi Watch S3 Bluetooth, which presents all information clearly, smoothly, and vividly. This is made possible by the high resolution of 466 x 466 pixels, the wide maximum brightness level of 600 nits, the 60 Hz refresh rate, and the 16.7 million colors reproduced. It also features the AOD (Always On Display) function, customizable watch faces, and an ambient light sensor with 256 levels of automatic brightness adjustment. Heart rate, SpO2, and stress monitoring Of course, the Xiaomi Watch S3 Bluetooth takes care of your health and monitors physical well-being 24 hours a day, thanks to its advanced 12-channel heart rate detection module. Thus, it provides dynamic tracking of heart rate, blood oxygen saturation levels, and stress levels, issuing alerts in case of unusual values. The Xiaomi S3 watch also includes guided breathing exercises and fall detection, as well as predictions and reminders during the menstrual cycle. *The Xiaomi Watch S3 Bluetooth is not a medical device. The health and fitness data it provides are for reference only and should not be used for diagnosis or treatment. Activity monitoring with over 150 sports modes Now let the motivation of the Xiaomi S3 Bluetooth smartwatch engage you with tracking over 150 different activities, including a professional skiing mode. To do this, it uses various sensors (heart rate, accelerometer, gyroscope, etc.) to accurately measure all workout data, which the Watch S3 will inform you about with its voice messages, keeping you updated on when to intensify effort, but also when to slow down. After completion, the results can be reviewed in detail through the Mi Fitness app. Bluetooth calls and smart features with Xiaomi HyperOS With the integrated Xiaomi HyperOS operating system, the Xiaomi Watch S3 provides a fantastic user experience, packed with smart features, as seen in the Xiaomi Redmi Watch 4. Moreover, by pairing the Watch S3 Bluetooth with your phone via Bluetooth 5.2 (compatible with Android and iOS), it allows you to answer and make calls simply by raising your wrist. This Xiaomi smartwatch is equipped with a speaker and microphone for that purpose. What materials is the Xiaomi Watch S3 Bluetooth made of? The S3 watch from Xiaomi features an attractive black design with a metal structure and a replaceable stainless steel bezel. Despite its remarkable durability, the set weighs only 44 grams. It comes with a comfortable black silicone strap (fluoroelastomer) that is resistant to sweat and water. And if you get tired of the original strap, you can easily replace it with a universal 22mm strap. How long does the battery of the Xiaomi Watch S3 Bluetooth last? Thanks to the combination of a large 486 mAh battery and an optimized operating system to reduce power consumption, the Xiaomi Watch S3 Bluetooth achieves a battery life of up to 15 days of typical use or up to 5 days in AOD mode. Additionally, it features innovative fast charging technology, which adds 2 more days of use in just 5 minutes. *Battery and charging data were obtained in Xiaomi's internal laboratories. Actual results may vary due to differences in software version, environment, and usage conditions, and may not reflect the actual product. Is the Xiaomi Watch S3 Bluetooth water-resistant? Yes. The design of the Watch S3 Bluetooth has a water resistance of 5 ATM*, allowing you to wear it while engaging in your favorite water activities. *The 50 m water resistance is based on the ISO 22810:2010 standard. The watch has a water resistance of 5 ATM (50 meters depth). It can be used in the pool, while swimming near the shore, or during other shallow water activities. However, it cannot be used in hot water showers, saunas, or for diving. Additionally, remember to avoid direct impact from fast currents during water sports. The water resistance function is not permanent and may decrease over time. Does the Xiaomi Watch S3 Bluetooth have independent GPS? This Xiaomi smartwatch is equipped with a dual-band GNSS L1+L5 chip compatible with the five major satellite positioning systems. This way, the S3 improves location performance and accuracy by 50% compared to the 46mm Xiaomi Watch S2, whether in a rural environment or in the center of a large city. Does the Xiaomi S3 Bluetooth smartwatch perform sleep analysis? Yes. The Xiaomi S3 smartwatch incorporates a new algorithm to analyze sleep quality. This takes into account respiratory and blood oxygen data to provide a comprehensive analysis and increase accuracy by 15% compared to its predecessor. Technical specifications of the Xiaomi Watch S3 Bluetooth Black: General parameters Brand: Xiaomi Product: Smartwatch Name: S3 Bluetooth Model: M2313W1 Display Size: 1.43 inches Type: AMOLED Resolution: 466 x 466, 326 ppi Refresh rate: 60 Hz Brightness levels: 256 Maximum brightness: 600 nits Connectivity Connectivity: Bluetooth 5.2 System requirements: Android 6.0 and above, iOS 13.0 and above App: Mi Fitness Sensors Health: Optical heart rate and blood oxygen sensor Motion and environment: Accelerometer Gyroscope Electronic compass Barometer Geomagnetic sensor Ambient light sensor Positioning: GNSS chip Compatible with Beidou, GPS, GLONASS, Galileo, and QZSS Battery Capacity: 486 mAh Battery life (typical daily use): 15 days Battery life (AOD mode): 5 days Charging method: Magnetic Fast charging: 5 minutes of charging = 2 days of battery Design Body: Aluminum alloy structure + Stainless steel bezel Strap: Interchangeable fluorocarbon - Adjustable for wrists from 140 to 210 mm (compatible with universal 22mm straps) Water resistance rating: 5 ATM Dimensions: 47 x 47 x 12 mm Weight: 44 g (without strap) Color: Black Package contents 1 x Xiaomi Watch S3 Bluetooth Black 1 x Charging cable 1 x User manual