Ever had some weird readings from your Apple Watch, or even wondered if you’re wearing right? Well, don’t worry, AppleInsider found information from Apple on exactly how it wants you to wear the device.

While much of the Apple Watch’s fitness capabilities comes through having internals such as an accelerometer to measure movement or provide fall detection, it also has an array of sensors on the back. If you’ve ever seen someone wearing an Apple Watch too loosely, you’ve seen a bright green light coming from the back. This is the optical heart sensor, which uses photoplethysmography to calculate your heart rate. That back of the Watch, though, must be kept in contact with your skin for that optical and an electrical heart rate sensor to work. The Taptic Engine expects you to be wearing it snugly, and the Wrist Detect feature has to have that skin contact. Apple even provides a diagram recommending the right fit.

Google launched its latest smartphones, the Pixel 4, the other day. Its event did not quite capture the imagination in the way Apple’s iPhone events do. However, argues Rene Ritchie at iMore, Apple could still learn a thing or two from Google.

It was like watching Game of Thrones Season 8, offering them more episodes, begging them for more episodes, and just watching them mic drop and end it.. like that. Anyway. The products and technology that did manage to somehow sneak out on stage was so good, that it almost makes up for the obvious lack of planning and organization that went into the event, and the extreme disrespect shown the audience, both live and streaming. Almost.