Apple Watch

How To: Lock Your Apple Watch with a Passcode to Increase Security & Keep Prying Eyes Out

While there isn't as much personal data residing on your Apple Watch as there is on your iPhone, it's still a good idea to set a passcode for it and lock it up when you're not using it. If you don't, while it's charging or otherwise off your wrist, others may be able to sneak a peek at your activity, messages, emails, and other personal details. Plus, you won't be able to use Apple Pay without one.

How To: Prevent Accidental 911 Calls from Your Apple Watch (So Emergency Services Don't Show Up While You're Sleeping)

I've called 911 accidentally more than a few times on my iPhone using the Emergency SOS triggers, but it's also just as easy to trigger an unintentional call to emergency services using an Apple Watch. These accidental 911 calls can put a strain on local public-safety answering points, or call centers, as well as local authorities and emergency medical technicians.