Guides and honest verdicts on using an Apple Watch for reading, studying and working — without reaching for your phone.

Make a playlist in iWatch Videos on the iPhone, save it to the Watch, and play it with the phone left at home.

$229 against $399. The SE 3 covers the everyday watch; the Series 12 adds ECG, blood oxygen, hypertension notifications and a brighter, longer-lasting display.

Three resets, three different jobs. Use the gentlest one that fixes your problem and keep your data.

A red iPhone silhouette, a red X or a green phone each mean something different. Identify the symbol, then fix the right thing.

Before you blame the battery, check Always On, workout GPS, background refresh and the notifications you never read. Each one is a known drain.

Same case, same display, same price. The Ultra 4's year is battery — 50 hours, 84 in Low Power Mode — plus the new Health Sensing System.

Same price, same display, same 24-hour battery. The Series 12 case is the new Health Sensing System, the Readiness score and the S11 chip.

Notifications go to the iPhone or the Watch, never both. Six checks, in the order that finds the culprit fastest.

Every current Apple Watch has 64 GB. Here is how to see what is using it, and what that space holds in music, films, photos and PDFs.

Apple's Translate is free and works offline. Translate Now covers 29 languages, phrase books on the Watch and a Reply button, and needs a connection.

Set iWatch Videos to pause after 15, 30 or 60 minutes, or at the end of the chapter, straight from the Apple Watch player.