The Amazfit GTS 4 watch complies with the ISO 22810-2010 standard, boasting a water resistance rating of 5 ATM, which allows it to endure depths of up to 50 meters. It is designed to withstand exposure to splashes, snow, showers, and swimming, having been tested by an independent third party, SGS, under report number SWT2206-14. It is recommended to refrain from wearing the watch in hot baths or saunas, as excessive steam may compromise its water resistance. When swimming, opting for a strap made of fluoroelastomer is advisable over leather or metal. For more information, please visit support.amazfit.com.

The live sports data streaming service provides audio broadcasting support in both English and Chinese.

The music storage capacity is 2.3GB, which can accommodate around 270-470 MP3 songs, taking into account that each track varies in size from 5-10MB, with some space reserved for system functions.

The effectiveness of the exercise recognition feature varies based on personal differences in posture and skill during workouts. Quick or diverse movements might not always engage the feature reliably. Activities like driving or riding a bus could inadvertently initiate recognition when they mimic the designated exercise. Furthermore, poor GPS signals or unsynchronized AGPS data during outdoor activities might be incorrectly categorized as indoor activities.

Smart recognition of strength training exercises is solely available in strength training mode. It accommodates 25 exercises, encompassing both bodyweight and weighted options such as squats, presses, pulls, push-ups, and curls. Should an exercise not be automatically recognized by the watch, the Zepp app offers a selection of muscle groups or exercise names for you to choose from.

Indoor positioning services are currently unavailable. The speed and accuracy of location determination may be influenced by the surrounding environment. The number and type of satellites utilized may differ based on your location.

The direct routes returning to the journey's beginning may not be practical due to environmental factors; instead, they reveal your position in relation to the starting point. The navigation features offer support for 18 sports modes: outdoor running, walking, outdoor cycling, climbing, hiking, cross-country skiing, mountain biking, BMX, outdoor boating, bobsledding and sledding, skiing, snowboarding, biathlon, race walking, snowshoeing, trail running, navigation, and open water swimming.

The track operation mode and smart track correction are only compatible with running track lengths of 200 meters and 400 meters.

Interval training templates can be applied in: outdoor running, treadmill running, outdoor cycling, indoor cycling, jumping rope, rowing machines, indoor fitness workouts, strength training, core muscle training, and stair climbing.

Always-On Display: The system content appears when the screen is illuminated, while the time is shown during standby mode. Users must manually enable the "Always-On Display" feature, which can be switched on or off using either the watch or the Zepp app.

To improve heart rate and blood oxygen tracking in the Zepp app: - Turn on 24-hour monitoring for heart rate and oxygen levels. - Set the heart rate monitor to track at least every 1 minute. - Configure alerts for abnormal heart rates using predefined thresholds. - Ensure accurate oxygen readings by wearing the watch snugly, one finger's width from the wrist, and keeping your arm still. - Set alerts for oxygen levels falling below the specified threshold (minimum 80%). - Take into account factors like movement and environment that may influence monitoring accuracy. - Activate 24-hour stress level tracking on the watch or app. - Customize alerts for high-stress levels using predefined values. - Enable notifications for breathing exercises on the watch.

This product and the Zepp app are not medical devices and should not be utilized for medical purposes or as the sole means of diagnosing any health conditions. The detection results are provided for reference only. If you have any health concerns, please seek advice from professional medical institutions.

To obtain precise results when taking manual meter measurements or with a single click, ensure that the watch fits snugly, leaving a finger's breadth of space from your wrist. Keep your arm steady to improve monitoring accuracy, as movement and environmental factors can influence speed and precision.

Sleep tracking can monitor nighttime rest and naps longer than 20 minutes. To enable the monitoring of breathing quality during sleep, you can access the Zepp app or adjust the settings within the watch's sleep feature.

Morning updates need to be set up in the Zepp app or the watch settings. The supported information includes weather conditions, battery status, sleep data, schedule, PAI score, menstrual cycle tracking, and yesterday's activities.

The HUNT study on fitness reveals that individuals with a PAI score of 100 or higher are less likely to develop high blood pressure, heart disease, and type 2 diabetes. This research, conducted by Professor Ulrik Wisløff from the Norwegian University of Science and Technology's medical school, spans over 35 years and includes more than 230,000 participants. To reap these benefits, make sure to enable heart rate tracking throughout the day.

To adhere to the storage limit, a maximum of 20 membership cards may be added to one account. The supported codes include Code 128, Code 39, and QR codes.

For the full list of 15 supported countries/regions and 14 languages, as well as instructions on activating and using Alexa on your Amazfit GTS 4 device, please visit support.amazfit.com.

This feature is solely compatible with Android devices operating on version 6.10.0 or later of the Zepp app.

The battery life may fluctuate depending on settings, operating conditions, and various other factors. As a result, actual outcomes may differ from laboratory findings. In a typical usage scenario: heart rate is monitored every 10 minutes, sleep tracking is enabled, a static watch face is chosen, the default screen brightness is utilized, 15 minutes of Bluetooth calls are made weekly, 30 minutes of music is played, 150 brief messages are received daily, 3 call notifications are received each day, wrist raise to check the time occurs 100 times a day, blood oxygen levels are tested 5 times a day, the bright screen remains on for 5 minutes daily, and GPS is activated for 90 minutes each week.

In battery saver mode, only certain features are accessible, including manual heart rate measurement, blood oxygen levels, stress assessment, sports modes, personal activity index (PAI), daily activity tracking, alarm, calendar, task list, and settings. Health monitoring functions such as heart rate, blood oxygen level, and stress tracking are turned off. Basic sleep monitoring is enabled, Bluetooth is configured to BLE, wrist raise screen illumination is disabled, and GPS is turned off.

Clock mode: Heart rate is tracked all day, Bluetooth connectivity to the phone is turned off, and extra features are disabled; it solely records step count and basic sleep information.

Intensive use case: continuous heart rate monitoring every minute, sleep tracking activated with advanced sleep monitoring for 8 hours, stress tracking enabled; selection of a dynamic watch interface; weekly Bluetooth calls lasting 60 minutes, and 60 minutes of music playback; voice assistant activated; 150 daily notifications lighting up the screen; 3 call alerts each day; checking the time by raising the wrist 100 times a day; testing blood oxygen levels 5 times daily; bright screen activity for 15 minutes each day; GPS usage for running for 90 minutes a week.

Activating GPS mode: Enable dual-frequency GPS tracking and heart rate monitoring using all satellites.

Enable balanced GPS mode to activate heart rate monitoring and location tracking using a single frequency (GPS + Beidou).

Activate the GPS system's power-saving mode to facilitate heart rate monitoring and GPS tracking while minimizing energy consumption (single frequency, low power consumption for GPS).

The availability of models is contingent upon your location.

The product images and on-screen content are for reference only. The actual appearance of the product, including its color, size, and display elements like background, user interface, and graphics, may differ slightly.

The information presented on this page, derived from internal laboratories or suppliers, has been gathered in controlled testing environments. The actual performance of the product may differ due to variations in individual products, software versions, usage conditions, and environmental factors.

Our company retains the right to amend the product information, specifications, and features listed above as necessary without prior notice, in response to immediate changes in product batches and production and supply factors.

Radio waves emitted by equipment can disrupt implanted medical devices like pacemakers and hearing aids. If you utilize these devices, please reach out to the manufacturers for advice on operating this equipment safely.

Avoid using the product in environments with strong magnetic fields, like MRI machines or medical imaging equipment, to safeguard the watch from possible damage.