Tracker is brand new so I'm not sure about the battery life but the features work well. HR monitor and step and sleep functions. The blood pressure feature records that my blood pressure is lower than normal, so I'm not sure how accurate it is. Overall this was a good buy for the price.
Black Audio-Technica ATH-M50X Professional Grade Studio Monitor Headphones with Detachable Cable - Critically Acclaimed
200 Review
Sennheiser HD280PRO: π§ Next-Generation Pro Audio Headphones
260 Review
π§ Sony WH-1000XM4 Noise-Canceling Wireless Headphones with Alexa & Mic, Blue
330 Review
SAMSUNG Galaxy Buds Live: True Wireless Earbuds with Active Noise Cancelling & Wireless Charging Case - Mystic Bronze (US Version)
252 Review