The watch can be wirelessly connected to a compatible smartphone or tablet via Bluetooth. The energy-saving technology enables access to a host of functions., Phone Finder The DW-H5600 has some similarities with the recent GBD-H2000, with fitness measurement and analysis powered by Polar. Along with the optical heart rate monitor and step counter, the watch is equipped with Bluetooth smartphone link, an accelerometer, and wired and solar charging. Some of the all-new fitness features of the GBD-H2000 are also found on the DW-H5600, such as cardio load status, blood oxygen level measurement, sleep measurement (with recovery status and autonomic nerve status), and a breathing exercise function. The DW-H5600 calculates VO2 max (maximum consumable oxygen uptake), which is displayed as the “Running Index” (and also referred to as such in the instruction manual).

Measuring Capacity: 1000 hours, Measuring Modes: Elapsed time, split time, Measuring Unit: 1/100th second Solar Assisted Recharging Charging system: Approx. battery operating time on after full charge: With training function (heart rate) use ex) running/walking HIGH (Continuous reception): Approx. 14 hours, NORMAL (Continuous reception): Approx. 16 hours, LONG (Intermittent reception): Approx. 19 hours, Without training function (heart rate) use, Approx. 2 months without the power-saving function*, Approx. 23 months with the power-saving function*To find what you want in the app, you also have to go digging. The multi-function nature means there’s a lot of information and screens, and it’s not always obvious where things are hidden. There’s a learning curve to it, but once you’ve found the fitness and health data and are used to navigating the app, it’s well-presented and informative. Andy Boxall/Digital Trends

Powered by any light source, saving time and money as no battery change required- known as TOUGH SOLAR You’ll need to use a proprietary charging cable to power it up and I can’t say the clothes peg-style cable is up there with one of my favourite charging cables, which I’ll get into more later.Invisible solar cells in the watch convert light into energy and supply all functions. A rechargeable battery provides the necessary capacity for operation in poor light conditions.