Samsung Galaxy Watch 9 44 mm Black SM-L350

Samsung Galaxy Watch 9 40mm Bluetooth — SM-L340N | Snapdragon® Wear Elite Platform | 1.3" Super AMOLED 3000 Nits | 445 mAh (30% Larger Battery) | Up to 40 Hours | Vitals Overnight Tracking | Sleep Coaching | FDA-Approved Sleep Apnoea Detection | Energy Score | Fitness Index | Running Coach | Heart Health Score | ECG + BIA + Blood Pressure | Google Gemini Raise to Talk | GPS + GLONASS + BeiDou + Galileo | Bluetooth 6.0 | NFC | 5 ATM | MIL-STD-810H | 31.5g | WearOS 7

The Samsung Galaxy Watch 9 40mm is the most advanced and most comprehensively capable everyday health companion Samsung has ever built in the compact 40mm form factor — powered by the Snapdragon® Wear Elite Platform for fluid, responsive performance across every health tracking function, workout session and Galaxy AI interaction, with a 445mAh battery that is 20% larger than the Watch8 40mm for significantly longer all-day and all-night health monitoring. The 1.3-inch Super AMOLED display at 438 × 438 pixel resolution and 3,000 nit peak brightness delivers vivid, sharp and fully sunlight-readable visuals across every watch face, health dashboard and notification — with the slim 8.6mm profile and 31.5-gram body weight making the Galaxy Watch 9 genuinely comfortable for all-day and all-night continuous wear without any consciousness of having a watch on the wrist. The Snapdragon® Wear Elite Platform — the first Galaxy Watch to use this platform — ensures that workout tracking starts instantly, apps launch without lag and every Galaxy AI feature and health algorithm runs smoothly in real time throughout every interaction, representing the most meaningful performance step Samsung has taken in Galaxy Watch history.

Vitals is the flagship health monitoring innovation of the Galaxy Watch 9 — a continuous overnight biometric monitoring system that tracks heart rate, heart rate variability, respiratory rate, skin temperature and blood oxygen simultaneously while you sleep, identifying subtle early changes in your body's vital signals before you would consciously feel them and providing information about what those changes may mean for your health status. This multi-signal overnight analysis gives the Galaxy Watch 9 the ability to detect patterns and trends across vital signs rather than reporting individual metrics in isolation — building a more complete and more meaningful health picture over time that improves as the watch accumulates weeks and months of individual baseline data. Energy Score translates the previous night's Vitals data into a single daily readiness score that communicates how prepared your body is for physical exertion and mental engagement that day, guiding you toward the right intensity of activity based on actual physiological recovery rather than a fixed schedule. Sleep Coaching builds a personalised 3-to-4-week programme based on your established sleep patterns and habits — requiring one week of baseline data and then delivering tailored guidance on bedtime timing, sleep hygiene and rest duration to progressively improve the quality and consistency of your sleep over the programme. FDA-approved sleep apnoea risk detection analyses blood oxygen levels throughout the night to identify patterns consistent with moderate-to-severe obstructive sleep apnoea risk — bringing clinical-grade sleep apnoea screening to the wrist for everyday awareness without requiring a dedicated sleep clinic visit.

The comprehensive fitness and performance platform extends beyond health monitoring into genuine athletic coaching — Fitness Index combines VO2Max, bioelectrical impedance analysis body composition, heart rate and activity data into a single comprehensive score of your current physical fitness level, giving you a clear and objective measure of where you stand and what specific content and guidance is relevant to your goals and capacity. Running Coach delivers a 3-to-5-week structured training programme that adapts to your current ability — whether you are training for your first 5K or targeting a marathon — guiding each session at a personalised pace for endurance development, confidence building and progressive improvement without overtraining. Daily Cardio Load estimates your daily accumulated physical strain and recovery needs in real time, telling you when to push harder and when to take an active recovery day based on what your body's actual data says rather than what a generic training plan prescribes. Heart Health Score tracks three key lifestyle indicators — sleep time, BMI and vigorous activity — into a single cardiovascular wellness metric with personalised guidance on what changes would improve the score most. Blood pressure monitoring, ECG and continuous optical heart rate monitoring from the upgraded BioActive sensor complete a health and fitness suite that is the most comprehensive Samsung has ever built into a compact watch. Google Gemini is built in and activated by simply raising the wrist — providing immediate AI-powered answers, task organisation and information access across apps without touching the watch. Wi-Fi 802.11a/b/g/n dual-band, Bluetooth 6.0, NFC, five-constellation GPS, 5 ATM water resistance and MIL-STD-810H military-grade durability certification complete the specification. Security updates guaranteed until 31 July 2031.