The active workout screen shows one exercise at a time, in a single card, so you always know exactly what to do next — whether you're logging from your phone or letting your watch drive the same session.
For each set, first confirm the weight — it's prefilled from your target, so most of the time you just tap Submit. Then enter the reps you got and tap Log set (the button reads Next instead if this set also asks for reps-in-reserve; see the RIR article below). If it does, pick 0–5 or — to skip it, then tap Log set. Rest starts automatically and counts down full-screen with Up next showing what's coming; skip it early, nudge it ±15 seconds, or tap Minimize ⌄ to shrink it to a pill so you can keep browsing the card underneath while it ticks down.
Move between exercises by swiping the card left or right, or tap Exercises ⇅ to open the full list — jump to any exercise, reorder what's left, or see what's done at a glance. Need one more push on the lift you're on? ＋ Drop logs a drop set on the same exercise without moving on. Building the workout as you go instead of following a routine? ＋ Add exercise is always available, and anything you add mid-session shows up on your watch too if you're wearing one.
Light day (top left) marks today's session as deliberately light — tap it and every set logs the same way, it's just excluded from the automatic weight-and-reps advancement so going light on one day never costs you progress. It's the same idea as a full deload week, just for a single session.
A logged weight that lands slightly off your target — say a machine pin at 20.412 kg instead of an even 20 — isn't a mistake; see "My logged weight doesn't match my target." When you're done with every exercise, Finish & save takes you to your workout summary.
Related: "My logged weight doesn't match my target", "What is RIR (reps in reserve)?", "Starting a workout off-plan (Quick Workout)", "Why didn't my target go up this session?"