Bakeey GTX: A sub-US$30 smartwatch that supports sleep tracking and can monitor heart rates, blood pressure and blood oxygen levels
The Bakeey GTX is another affordable smartwatch available from retailers like AliExpress and Banggood. Currently priced at US$27.99 and US$29.99 on those websites, the Bakeey GTX has a 1.3-inch colour TFT panel that resolves natively at 240 x 240 pixels. The smartwatch has a 45 mm case and is 11.7 mm thick. Bakeey offers the smartwatch in two colours. One has a silver chassis and a blue strap, while the other is all-black. The GTX has removable straps though, so you are not wedded to the silicone ones that Bakeey provides.
The smartwatch is compatible with Android 4.4 and iOS 9.0 and above through the Wearfit 2.0 app. According to the manufacturer, the GTX is IP67 certified and has a 200 mAh battery that it claims should last up to 7 days of "normal usage". Bakeey does not define what "normal usage" means, though.
The GTX also supports 8 sports modes and supports Bluetooth 4.0. Bakeey has included a heart rate sensor too and claims that the GTX can measure blood pressure, along with blood oxygen levels. We are unsure how accurate these measurements are, but the GTX also supports sleep tracking and can act as a remote camera shutter. The smartwatch lacks a GPS module, though.