အချိန်ကြည့်ဖို့မဟုတ်တော့တဲ့ နာရီများ

Why does a smartwatch glow green under your wrist—and can that tiny sensor really measure your heart rate accurately? In this video, I test the OPPO Watch S and investigate the science behind its green optical sensor. I explain how smartwatch heart-rate monitoring works, why green light is used, and how the watch responds when my heart rate changes during exercise. I also share my real experience after wearing the OPPO Watch S for around one month, including its sleep tracking, 60s Wellness Overview, blood oxygen monitoring, period tracker, lightweight design, and everyday comfort. In this video: • How the green heart-rate sensor works • What PPG technology means • OPPO Watch S workout heart-rate test • 8-channel heart-rate sensor • 16-channel blood oxygen sensor • 60s Wellness Overview • Sleep tracking and sleep score • Period tracking features • 8.9 mm slim design and 35 g lightweight body • OPPO Watch S advantages and limitations • Is the OPPO Watch S worth 899,900 MMK? The OPPO Watch S is designed as a consumer wellness device. Its health readings can help users monitor daily patterns, but they should not be treated as a replacement for professional medical tests or medical diagnosis. This video is made in partnership with OPPO. Giveaway details are explained in the video and pinned comment. #OPPOWatchS #OPPO #Smartwatch #SmartwatchReview #HeartRateMonitor #SleepTracking #HealthTech #FitnessTracker #WearableTechnology #Jimmywhotalks