The Apple Watch is great for giving us little reminders and tracking our steps, but it’s hardly a personal trainer. Luckily, there’s now a way to amp up this watches’ biometric functions to include data that no fitness coach could detect.
The Aura Smart Strap is a strap you can wear with your existing Apple Watch, and it’s tailor-made for those who want to get serious about tracking their workout progress. After a short calibration, it can give you immediate and accurate updates on your fat and body mass using bioimpedance analysis. And because water is an often overlooked fuel during marathon sweat sessions, there’s a hydration tracker that can alert you if you’ve fallen behind on your intake. All these functions and more can be accessed in the Apple HealthKit App, which helps you build daily goals around the data.
Want to try one on for size? Macworld readers can get the Aura for an extra 20% off the MSRP by using the coupon code HOLIDAY20 at checkout.

Prices are subject to change.