Qualcomm has added a new chip to its range for smartwatches, this one designed to address a common criticism of the form factor, poor battery life. The Snapdragon Wear 3100 is an ultra-low power coprocessor, running a very stripped-down real time operating system (RTOS) to extend battery life. The chip company claims the 3100 can power a watch for 4-12 hours longer between charges than its predecessor. That prolongs battery life typically to a month, provided Google’s Wear OS is turned off. The power savings mainly come from hosting the basic watch functions, which run all the time, on a new 40 MHz ARM M0 microcontroller core running at 0.6 V, in a homegrown software environment which Qualcomm describes as…