Samsung Reportedly Tweaking Watch 4. Say it ain't so, Samsung! If the Galaxy Watch 4 dumps Tizen, and switches to brain dead Wear OS, I will not buy. I have many Wear OS Smartwatches, and they are all laggy, and not intuitive. I love Tizen, the OS on my Galaxy Watch 3, and the battery life is several days. Wear OS is notorious for eating battery life, and is sluggish at best. I guess my Galaxy Watch 3 will stay on my wrist awhile longer, as is my Galaxy 10+ Smartphone. Samsung, if you are listening, get your act together.