The full Courtbeat: everything in the free app plus the pages that show how you play, how you recover and where you are heading over the weeks. A match, a practice, a lesson or a basket of serves: you don't have to pick a session type, and a score opens at 0-0 with a point key. WHAT PRO ADDS • For your next session: one tip from your own data, with the number behind it. • Sections: each part of the session (rally, drill, serves, match) with its time and strokes; open one for its types and busiest minute. • Corrections: set a wrongly seen stroke to the right type, or "Not a stroke": with a quick START press just after it, between points or in the stroke-by-stroke list; the pages show the corrected counts, and those made during play teach the watch your strokes. • Serve: in a match first serves in, points won on first and second serve, double faults; in serve practice the serves per series and how their speed moved. • Heart rate zones: minutes in each zone, with your own limits; move through time to see the clock, section, heart rate and zone. • Condition: recovery in one minute against the last 3 weeks, stroke speed at high heart rate, and in a match the points you began before it came down. • Play balance: how many minutes of the session were really in play, forehand against backhand on a scale. • Wrist speed: your strokes at the end against the start, your hardest stroke, how much each type varies. Relative, not km/h. • Progress: strokes per week over 4 weeks, each type's share, your weekly serve load and heart rate at the same pace. • Records: most strokes, longest rally, longest session, best first serve, points in a row; the ones broken today in gold with a star. • History: your last 40 sessions, each with its own pages; it also opens from the start screen. IN EVERY SESSION • Your last stroke's name large, ≈ when not sure; your heart rate on top; a buzz for each stroke type. • The watch's own gyroscope and accelerometer. No phone, no sensor on the racket. • Score without looking, by button or touch; singles and doubles, tiebreaks, no-ad; point marks go to Garmin Connect. HOW FAR TO TRUST EACH NUMBER An estimate, or a type the watch is not sure of, carries ≈; wrist speed and recovery are estimates. An unknown value is an empty outline, never a zero. A wrist cannot see the ball, so now and then it counts a swing that was not a stroke, or misses one. No accuracy figure is printed: none has been measured on a Garmin watch yet. WHAT IT DOES NOT MEASURE Speed in km/h, whether a ball was in or out, where you stand on court, topspin against flat. The watch reads only the arm it is on. PRICE AND RETURNS A one-time purchase; no subscription, no in-app purchases. Garmin's 48-hour return window applies. Try the free Courtbeat first. GOOD TO KNOW • Needs a Garmin watch with a gyroscope and Connect IQ 5.1.1 or later; the device list on this page is exact. • GPS is off by default. Reading the motion sensors all session costs battery. • No account, and the watch needs no phone: it works in airplane mode. Unless you choose to share your strokes' motion and your corrections anonymously to improve recognition (never location, heart rate or identity; courtbeat.neron.app/privacy), nothing leaves your watch except the activity you sync to Garmin Connect and what it sends to the Courtbeat phone app. Your heart rate zones are read from your watch's profile. • Heart rate, time and calories are your watch's readings, for information. Tips come from your own numbers; they are not coaching or health advice. Courtbeat is not a medical device. The stroke model is trained on the Silent Impact dataset (Park, Yang and Jo, UIST 2024), CC BY 4.0 (creativecommons.org/licenses/by/4.0). Changed: dominant wrist only, 100 Hz, swing features. Garmin and Connect IQ are trademarks of Garmin Ltd. or its subsidiaries. Courtbeat Pro is independent and not endorsed by Garmin.

Every screen is new since 1.1: larger text, a label beside every number, one question per page. • Start: Practice, or Match to set the format first. In any session a point key opens the score. • Live screen: your last stroke's name in the middle, large; ≈ when the watch is not sure. Your heart rate always on top. A buzz for each stroke type; a setting makes it one pulse or turns it off. • Between points: the score on the court, large; games, sets and who serves in words. • Corrections: a quick START press just after a stroke changes its type, or makes it "Not a stroke"; also between points under "Last strokes" and after the session in the stroke-by-stroke list. • Corrections made during a session teach the watch your strokes ("Learn from my corrections" in the settings, on by default). • New pages: Summary and a tip for your next session, Strokes, Sections, Match result, Serve, heart rate zones and moving through time, Condition, Play balance, Wrist speed, Progress, Records and History, which also opens from the start screen. • The stroke flower, the rally bands, point by point and the where-you-win-points page are gone. Marking how a point ended goes on and is written to Garmin Connect. • Let's improve Courtbeat together: after your first session the watch asks once whether to share your strokes' motion and your corrections anonymously. Nothing is sent unless you say yes; change it at any time in Courtbeat's settings in the Garmin Connect app. Turning it off asks for what was sent to be deleted. Details: courtbeat.neron.app/privacy • Permissions: UserProfile, to read your heart rate zones from your watch's profile; Communications, only for sharing and the phone app.