Everything you'd expect from a Fitbit in 2019. Works with both iOS and Android smartphones. At $100, it’s now the most affordable Fitbit with heart-rate tracking. And it has a touchscreen you can ...

If you want a convenient device that gets the job done without getting in the way, we recommend the Inspire HR as it is slightly smaller and lighter than the Charge 3, making it more comfortable to ...

本文通过对比Fitbit Charge 5与科研级设备Equivital EQ02在心率（HR）和皮肤电活动（EDA）测量中的表现，揭示了消费级穿戴设备在心理生理监测中的潜力与局限。研究发现，Fitbit Charge 5虽与EQ02呈中度相关性（HR: rs=0.45–0.58；EDA: rs=0.42–0.50），但存在系统性偏差 ...

If you’re looking for a new wearable with a screen that counts your steps, receives notifications, and can withstand a dunk in the pool, you don’t have to buy an expensive smartwatch. Nor do you have ...

Withings has returned as its own company after a short stint under Nokia, and it’s brought out some new fitness trackers to take on the top contenders. The $129 Withings Pulse HR looks and acts much ...