Polar Street X pros and cons Pros Integrated LED flashlight with a vibrant AMOLED touchscreen display. Support for the extensive Polar Flow ecosystem. 50m water resistance and MIL-STD-810H rating. Cons Plastic case and bezel. Single frequency GPS. No support for ECG or blood oxygen. $249.99 at Amazon Follow ZDNET:  Add us as a preferred source  on Google. It's that time of year when people start noticing I have tan lines on both my wrists from wearing two watches. One has an integrated LED flashlight for daily use, and the other is a smartwatch . Thanks to Polar's new Street X smartwatch , picking up a powerful sports watch with a dual-color LED flashlight is much easier at the low $250 price point, which beats existing LED-equipped watches by at least $150.  Also: I tested the best sports watches in 2026: Here are the latest and greatest watches, no matter your budget Once you use a sports watch with an LED flashlight, you won't use another watch without one.…