Product Feature

Automatic heart rate measurement, 24-hour heart rate measurement, resting heart rate, exercise heart rate, heart rate reminder, average heart rate, Active Score, sleep detection (Support Enhanced sleep tracking), blood oxygen measurement, blood oxygen reminder, stress monitoring, all-day step count, calories, distance, exercise duration, water reminder, stand up reminder.For more features, please connect to the Nothing X app for a complete experience.

Yes, it does. You can enable this feature by going to Settings > Display & Brightness > Brightness on the watch and selecting Automatic. Alternatively, swipe down on the watch face to access the quick settings, and tap brightness icon to switch to Auto mode. Once enabled, the watch will automatically adjust the screen brightness based on the ambient light conditions.

VO₂ Max refers to the maximum amount of oxygen your body can intake and utilise per minute during exercise, measured in mL/(kg·min). Endurance activities rely on oxygen. The more oxygen your body can use, the more efficiently it burns carbohydrates or fats to generate energy. A higher VO₂ Max generally indicates better endurance capacity. VO₂ Max is a strong indicator of aerobic fitness. Individuals with higher VO₂ Max values usually have greater potential in endurance sports.

How to obtain your VO₂ Max data: Wear your smartwatch and start an outdoor or indoor running activity (outdoor running is recommended), or outdoor cycling. Ensure the workout is of moderate or higher intensity, keeping your heart rate elevated for about 15 minutes. After completing the session, your VO₂ Max result will be calculated automatically. If you do not see a result, it may mean the exercise intensity was not high enough to meet the algorithm’s requirements. You can try again with a more intense session.

Note: VO₂ Max ratings are based on your age, gender, and measured value. To ensure accuracy, please make sure your personal information is correctly filled out in the app.

Custom Running Coach is a personalised training program designed to systematically improve your aerobic fitness and running performance. For example, if you choose a 10K training plan and set a target finish time, the system will create a guided plan tailored to help you steadily improve and reach your goal.

Please note: This doesn't mean you'll run 10 kilometers in every session. Instead, the plan includes a variety of targeted workouts structured around your goal, gradually building your running ability over time.

Running Performance Prediction uses your running history, VO₂ max, and other key fitness metrics to comprehensively assess your current endurance level and estimate finish times for specific running distances. This feature provides a clearer picture of your potential and helps guide your training more effectively.

Predicted finish times will adjust dynamically based on improvements or declines in your fitness level.

Requirements:
1. You must have a consistent running history and valid VO₂ max data for prediction results to be generated.
2. Predictions for half marathon and full marathon require a higher level of aerobic fitness. If your VO₂ max is available but no prediction is shown for these distances, it may indicate that your current aerobic capacity isn't yet sufficient to complete the race. Continued improvement in VO₂ max is recommended to unlock full predictions.

This feature is designed to help you understand your performance level and plan your running goals more scientifically

When Enhanced sleep tracking is enabled, the watch uses continuous heart rate monitoring during sleep to more accurately detect and analyse your sleep stages. This provides a more detailed and precise breakdown of your sleep quality.

Please note: Enabling this feature will significantly reduce the device’s battery life.

Calories are categorised into Active Calories and Total Calories:

Active Calories
Active Calories refer to the energy your body burns through physical activities such as exercise, walking, and daily movement. This value excludes the calories burned while at rest (basal metabolic rate).
The smartwatch calculates Active Calories by monitoring activity intensity, steps, heart rate, and more—helping you understand how much energy is used during your daily activities.

Tracking Active Calories allows you to better evaluate your workout effectiveness, set health goals, and maintain a more active lifestyle. Whether your goal is weight loss, fitness maintenance, or overall health improvement, Active Calories provide valuable insights.

Total Calories
Total Calories represent the total energy expenditure in a day, combining both Active Calories and Resting Calories.

Active Calories include calories burned during workouts (like running or cycling) as well as low-intensity daily activities recorded while wearing the watch—even if you haven’t formally exercised.

Resting Calories are the calories your body burns while at rest, based on your Basal Metabolic Rate (BMR). BMR is estimated using your age, height, weight, and gender.

This comprehensive calorie tracking helps you make informed decisions about nutrition and activity.

Recovery Time indicates how long your body needs to fully recover before engaging in your next high-intensity workout.

It appears immediately after each training session and counts down in real time, helping you evaluate when you’re ready for your next intense exercise. If you begin a new workout before full recovery, the remaining recovery time will accumulate accordingly.

This feature helps you better plan your training schedule and avoid overtraining.

Training Effect is divided into two categories: aerobic and anaerobic.

Aerobic Training Effect:
This evaluates the improvement of cardiovascular endurance by analysing the amount of oxygen consumed during exercise. It helps you understand how your workout positively impacts your overall aerobic fitness and stamina.

Anaerobic Training Effect:
This reflects improvements in muscle strength and explosive power. It assesses how the intensity of your workout contributes to the development of your anaerobic capacity.

By tracking both, you can better understand how each workout contributes to different aspects of your fitness and adjust your training plans accordingly.

Training Load is a metric that measures the intensity of your workouts and reflects your physical fitness level. It is calculated based on the amount of time you spend in different personalised heart rate zones during a single workout, combined with fixed weighting factors, resulting in a comprehensive score that represents your overall exercise effort.

Specifically, Training Load helps track changes in your fitness under the same workout conditions. A decreasing Training Load indicates improved efficiency – your body completes the same exercise with a lower heart rate, suggesting better recovery and adaptation. Conversely, an increasing Training Load may mean your body requires a higher heart rate to perform the same workout, which could be due to fatigue or poor recovery.

By continuously monitoring your Training Load, you can better adjust workout intensity, avoid overtraining or undertraining, and improve your overall fitness more effectively.

Active Score, is a health metric that quantifies physical activity using heart rate data. It is calculated from your heart's response to exercise over a rolling 7-day period. This metric helps you gauge the intensity and effectiveness of your workouts. Aim for an Active Score of 100 each week to maintain good health.

Importantly, any amount of physical activity is better than none. Incremental increases in physical activity, even at low intensities, can contribute to health improvements by reducing sedentary time.

How is it calculated?
The Active Score is tailored to individual profiles, including factors like age, resting heart rate, maximum heart rate, and recent exercise history over the last 7 days.
By performing physical activities while monitored by your smartwatch, you accumulate Active scores. Activities of higher intensity will generate more scores in less time, enhancing your score more efficiently.
As your Active Score grows, acquiring additional points becomes progressively challenging.

Why is it calculated on a 7-day basis?
The Active Score offers a snapshot of your physical activity impact over a rolling 7-day period. This flexible system allows you to spread your activity throughout the week without the pressure of achieving a high level of exercise every single day. Accumulating scores is possible anytime within this period, although we recommend engaging in physical activities 2-3 times a week to optimise both your physical and mental well-being.

Yes, Watch 3 Pro supports women’s health tracking and menstrual cycle prediction. After connecting the watch with the Nothing X app, you can set your menstrual data in the app. Based on your input, the system will automatically display your menstrual period, predicted period, ovulation day, and fertile window. The information set in the app will be synced to the watch, allowing you to view it on both the app and the watch.

Watch 3 Pro does not support direct connection to bluetooth earphones.
To control music, please connect your phone to bluetooth earphones, then connect your watch to your phone. Make sure your watch and phone's bluetooth are turned on, and the Nothing X app is connected to your watch. Open the music app on your phone to start playing music, then open the music function on your watch to control music.

Watch 3 Pro does not support NFC.

Watch 3 Pro does not support eSIM service.

Bluetooth 5.3

Watch 3 Pro is equipped with a high-quality linear motor, delivering refined and responsive haptic feedback. Whether it's for call alerts, alarm wake-ups, or various notifications, it provides a more comfortable and natural vibration experience.

Watch 3 Pro features dual-band GPS (L1 + L5). It supports simultaneous reception of L1 and L5 frequency signals, significantly enhancing positioning accuracy and stability in urban environments or complex terrains, making outdoor activity tracking more reliable.

GPS/GLONASS/Galileo/QZSS/Beidou

The Nothing X App supports devices running iOS 13 and above, and Android 6.0 and above.

English, Spanish, Hindi (India), Japanese, Korean, German, French, Italian, Traditional Chinese, Simplified Chinese, Czech, Polish, Romanian, Portuguese, Arabic, Thai, Russian, Indonesian, Filipino, Hebrew, Turkish, Vietnamese.

Please ensure your watch is connected to your phone via bluetooth and check your Nothing X app to confirm the connection between the watch and phone.

For non-Nothing phone/non-CMF phone users:
1. Open the camera app or any third-party camera app on your phone.
2. On the watch, go to the Camera Remote and tap the shutter button to control the phone's camera.

For Nothing Phone/CMF phone users:
Simply go to the Camera Remote on the watch and tap the shutter button to directly launch the phone's camera and take a photo.

Screen Controls:
Watch 3 Pro features a vibrant color screen that supports full-touch operations, including swipe up, swipe down, swipe left, swipe right, and long press actions.
Operations
On the home screen
Swipe down to expand Quick Settings
· Swipe up to see notifications
· Swipe left to see widgets
· Swipe right to see widgets or return to the previous page
· Press and hold to change the watch face
· Cover watch with palm
· Turn off the screen
Functional crown
Rotate up
· Scroll up or previous interface
Rotate down
· Scroll down or next interface
Press once
· Wake the watch
· Open feature list
· Pause or resume workout
· Go back to the previous page
Press and hold
· Power on, power off or restart
· Press for 10 seconds to force restart

Typical Battery Life (13 Days):
Screen Activation: 100 times per day
Call Notifications: 10 times per day
Message Notifications (unread): 100 times per day
Message Views: 100 times per day
Alarms: 3 times per day
Data Sync: 24 times per day
Exercise with Screen Off: 18 minutes per day
Exercise with Screen On: 0.71 minutes per day
General Usage: 5 minutes per day
Standard GPS Usage: 5 minutes search and 120 minutes tracking per week
Bluetooth Calls: 30 minutes per week

Heavy Usage (10.5 Days):
24-Hour Heart Rate Monitoring
Screen Activation: 200 times per day
Manual Blood Oxygen/Heart Rate Checks: 6 times each per day
Call Notifications: 30 times per day (auto-hangup after 10 seconds)
Message Notifications (unread): 100 times per day
Message Views: 200 times per day
Alarms: 3 times per day
Data Sync: 24 times per day
Exercise with Screen Off: 18 minutes per day
Exercise with Screen On: 0.71 minutes per day
Sedentary Reminders: 4 times per day
Hydration Reminders: 8 times per day
Remote Camera Control: 20 times per day
Standard GPS Usage: 5 minutes search and 120 minutes tracking per week
Bluetooth Calls: 30 minutes per week

Heavy Usage + 12-Hour Daily AOD Mode (4.4 Days)

Note: The above data is derived from laboratory test reports. Actual results may vary based on usage conditions and individual differences such as temperature extremes and battery wear over time.

Outdoor run, Indoor run, Outdoor walk, Indoor walk, Outdoor cycle, Indoor cycle, Hiking, Soccer, Basketball, Mountain hike, Yoga, Boxing, Cross-trainer, Free Training, Strength training, Skiing, Dynamic cycle, Cross-country running, Snowboarding, Cross-country skiing, Rower, Stair stepper, Treadmill, HIIT, Fitness exercises, Pilates, CrossFit, Functional training, Physical training, Taekwondo, Karate, Fencing, Core training, Kendo, Horizontal bar, Parallel bar, Belly dance, Jazz dance, Latin dance, Ballet, Street dance, Other dance, Roller skating, Martial arts, Tai chi, Hula hooping, Disc sports, Darts, Archery, Horse riding, Kiteflying, Swing, Stairs, Fishing, Badminton, Table tennis, Tennis, Billiards, Bowling, Volleyball, Shuttlecock, Handball, Baseball, Softball, Cricket, Rugby, Hockey, Squash, Dodgeball, Sailing, Surfing, Jet skiing, Skating, Ice Hockey, Curling, Skateboarding, Rock climbing, Cooldown, Cross training, Australian football, Hunting, Golf, Fitness gaming, Aerobic exercises, Yoga rolling, Pickleball, Stretching exercises, Hand cycling, Mind & Body, Wrestling, Gymnastics, Track & Field, Snow sports, Lacrosse, Sit-ups, Push-ups, Battle rope, Smith machine, Pull-ups, Zumba, Plank, Kabaddi, Shot, Javelin, Long jump, High jump, Trampoline, Dumbbell, Karting, Kickboxing, Beach football, Beach volleyball, Gateball, Sepak takraw, Luge, Parachuting, Racing, Parkour, Jump rope, Tae Bo, Circuit training, Body Combat, Kettlebell Training, Mixed cardio, Traditional strength training, Social dance, Stroll machine, Scooter Riding, Equestrian sports, Polo, Racquetball, Kayaking.
Tip: More features are available in the Nothing X app.