I picked the HF03X from Gearbest because it seems to have all the right features at a reasonable price. Colour, what is looking to be decent battery charge life, pulse, blood pressure, oxygen levels, sleep, sport, notifications, alarm etc. The last watch from GearBest was the Xiaomi Mi 3 – lovely, gets daily use but it is monochrome. That hasn't stopped my wife loving it but I think that's about to change? Of course, one has to have a working watch and a going out watch so there's room for both.
There’s a single touch point near the bottom of the HF03X colour screen. Pressing that for 3 seconds starts the watch and the screen lights up. The green heart rate sensor is, as usual on the underside of the watch body.