Tomstar is a global manufacturer of consumer electronics, specializing in the design and production of smartwatches, fitness bracelets, and tablet PCs.
Shenzhen Tomstar Technology Co., Ltd., established in 2008, is a global manufacturer of consumer electronics based in Shenzhen, China. The company specializes in the development, design, and continuous innovation of smart wearable devices, including smartwatches, fitness trackers, and tablet PCs.
Tomstar's product lineup is built to support modern, connected lifestyles, featuring comprehensive health monitoring tools like heart rate, blood oxygen (SpO2), sleep tracking, and GPS sport modes. With an emphasis on robust quality control and international certifications such as FCC, CE, and RoHS, Tomstar delivers dependable digital entertainment and personal health tracking experiences to consumers worldwide.
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Scan the QR code in your user manual to download the companion app (such as DaFit or LEFUN HEALTH). Turn on your smartphone's Bluetooth, open the app, navigate to 'Add Device', and select your Tomstar watch from the list to pair.
Tomstar devices are generally water-resistant and can handle rain, splashes, and sweat during workouts. However, it is not recommended to use them while swimming, diving, or in hot saunas unless explicitly stated in your specific model's manual.
Simply wear the smart bracelet while you sleep. The device will automatically monitor your sleep duration and quality, which you can review the next morning on the watch screen or the connected companion app.
Plug the provided magnetic or clip charging cable into a standard 5V/2A power adapter or a USB port on your computer, ensuring the charging contacts are securely connected to the back of the device.