Latest YUNDAP Smart Wrist Watch has everything that you need. its Heart Rate & Sleep Monitoring features are very useful, they will notify you if it detects any sort of abnormal heartbeat, so you can prevent any sort of uncertainty. You can wear it in the pool as well, it will not get spoiled, as it has IP67 waterproof. This watch has Ultra-Long Battery Life as compared to other watches which lasts only 3 hours, but this watch lasts more than 6 hours on a single charge. this watch is compatible with both iOS and Android, it’s not limited to just one platform like other smartwatches. Overall, this YUNDAP Smart Wrist Watch is one of the best smartwatches.