DT78 Smartwatch Is Now Available For Only $21.99 (56% Off)
DT78 1.3 Pulgadas Círculo Completo/Pantalla Táctil Reloj Inteligente con Podómetro Smart Men's Y Monitor De Ritmo Cardíaco para Mujer Pulsera Inteligente Smartwatch,A : Amazon.es: Electrónica
DT78 Round Full Touch Smart Watch Smartwatch Bracelet Fitness Activity Tracker For Men Women Wearable Devices Heart Rate Monitor _ - AliExpress Mobile
GitHub - fbiego/DT78-App-Android: Alternative app for the DT78 Smartwatch. Also works with DT92 & DT66. May work with watches that use the WearFit 2.0 app.