<b>Amazfit GTR 4</b><br><br><b>Smart Fitness Made Easy</b><br><br><b>A Classic in Action</b><br>Powered by Zepp OS 2.0<br><br><b>150+ Sports Modes</b><br>Get down to business with a huge selection of over 150 sports modes, including Strength Training, Golf Swing, and a lot more. And when it's time for that well-earned beach vacation, the watch can be used to track your swimming data and endure the equivalent of up to 50 meters' water pressure.<br><br><b>Live Sports Data Broadcast</b><br>Get live notifications broadcast through the watch's speaker or your Bluetooth headphones for sports data like heart rate and hydration reminders, distance covered, and more.<br><br><b>Music Storage & Playback</b><br>For a workout motivation boost only your favorite song can deliver, store music on the watch for direct playback - or even effortlessly control your phone's music via Bluetooth.<br><br><b>Jump in with Smart Recognition of：</b><br><br><b>8 Sports Movements</b><br>As soon as you begin one of these eight sports, the watch will sense your movement and automatically4 suggest that you open the corresponding sport mode.<br><br><b>Jump in with Smart Recognition of</b><br><br><b>Strength Training Exercises</b><br>The Amazfit GTR 4 can automatically recognize the movements and count the reps of dozens of strength training exercises5, many of which have adjustable variations in the Zepp App, as well as track your rest time between sets. After your workout, the Zepp App will show you the muscle group you exercised and how long you exercised it for, to help keep your training efficient.<br><br><b>Super Strong & Accurate</b><br><br><b>GPS Tracking.</b><br>Industry-first Dual-band Circularly-polarized GPS Antenna<br><br>The Amazfit GTR 4 uses industry-leading dual-band circularly-polarized GPS antenna technology - similar to that used in the aircraft and automotive fields - so you can enjoy stronger positioning that's 99% as accurate as top handheld GPS locators.<br><br>Whether you're hiking a tree-covered trail or cycling to work through a congested city center, enjoy positioning that's unimpeded by environmental and multi-path interference.<br><br><b>Import Route Files & Follow Your Own Path</b><br><br>Import a route file to the watch from the Zepp App and navigate your way along it in real-time.<br><br>When following your own unique path, track your real-time movement directly on the display.<br><br>See the shortest straight line back to the starting point of your journey when you're in a hurry.<br><br><b>Review Your Performance with PeakBeats™</b><br>When you're done working out, the PeakBeats™ workout status algorithm will show you data including maximum oxygen uptake (VO2 Max), full recovery time, training load and training effect, to help you understand factors that can affect your recovery, progress and exercise capacity.<br><br><b>Sync Workout Data to Strava & adidas Running</b><br>Show your friends what a classic in action looks like. Sync data from your running and cycling workouts to Strava and, thanks to a new partnership between Amazfit and adidas Runtastic, to the adidas Running app.<br><br>*adidas Running will be supported via OTA update. Strava and adidas Running availability may vary depending on your country or region.<br><br><b>Vintage Made Advanced</b><br>While inspired by the streamlined style and precision of modern sports cars, the Amazfit GTR 4 also keeps one eye on the rear-view mirror, honoring the classics with its vintage round watch body.<br><br><b>Boundless Style That's Uniquely You</b><br>200+ Watch Faces with Matching Always-on Displays<br><br><b>Power that Goes the Distance</b><br>Crush your professional and workout goals for up to two weeks at a time.<br><br>Primed for action, the battery of the Amazfit GTR 4 packs a 475 mAh rated value, and the watch's new Battery Saver Mode even enables continued use of features like sports modes, measurement of health metrics, and more, all while saving power.<br><br><b>Powerful & Accurate Health Technology</b><br>The Amazfit GTR 4 debuts the new BioTrackerTM 4.0 PPG biometric sensor. Enhanced to 2LED, the sensor collects 33% more data and is more accurate than the previous generation, thanks to the ultra-thin 0.4mm glass base.<br><br>This sensor, combined with the watch's upgraded heart rate tracking algorithm, greatly reduces potential signal interference caused by arm movement during exercise, for heart rate tracking that almost reaches the level of heart rate belts.<br><br><b>Easy 24/7 Health Management</b><br>Enjoy highly accurate 24-hour monitoring of heart rate, blood-oxygen saturation and stress levels. The watch can also detect your breathing rate, and is able to quickly measure these four important health metrics in one easy tap.<br><b>24-hour Monitoring of:</b><br>- Heart Rate<br>- Blood-oxygen Saturation<br>- Stress Level<br><br><b>PAI Health Assessment System</b><br>Get a simple and personalized health overview score with PAI17.<br><b>Menstrual Cycle Tracking</b><br>Get predictions and reminders for upcoming fertile and menstrual periods.<br><br><b>Get reminders* for:</b><br>- Abnormally High or Low Heart Rates<br>- Abnormally High Stress Levels<br>- Abnormally Low SpO2 Levels<br>- Stress-reducing Breathing Exercise<br><br>*Alerts and reminders need to be enabled in the watch settings or Zepp App.<br><br><b>An OS as Smooth as the Mightiest Engine</b><br>The powerful and easy-to-use Zepp OS has been upgraded.<br><br>- Super-smooth interactions and a smartwatch-tailored UI that's designed to consume less power.<br>- Choose which layout your app menu is presented in.<br>- Choose a more vivid or natural color tone, and switch between styles at will.<br><br><b>Even Richer Mini App Ecosystem</b><br>Along with the GoPro and Home Connect third-party apps, the Amazfit GTR 4 has added an even wider selection of mini apps available for download from the Zepp App. New additions include:<br><br>Baby Records<br>- Record your baby's last feeding time and get reminders for upcoming feeding times.<br>- Record the times your baby went to sleep and woke up, and total sleep time for the day.<br><br>Games<br>- Schulte Grid<br>- Dodge Mine<br><br>*Games will be available via OTA update.<br><br><b>Store Cards for Simplified Shopping</b><br>Always forgetting your store card? No problem. Easily add membership and club card codes from your favorite stores to the Amazfit GTS 4, via the Zepp App17. Simply show the code on your watch display when it's time to scan, and carry on with your shopping trip.<br><br><b>A Prime Personal Online Assistant</b><br>Easily set an alarm, ask a question, get a translation and more with Alexa18.<br>Download the Alexa* watch face from the Zepp App for a convenient quick-start Alexa icon.<br><br>*Amazon, Alexa and all related marks are trademarks of Amazon.com, Inc. or its affiliates.<br><br><b>Offline Voice Assistant</b><br>Engage a sports mode, open a health feature and more via voice command, even when you don't have an internet connection. Tell the watch to "Up Your Game", for a built-in surprise...<br><br><b>Answer Bluetooth Phone Calls</b><br>Via Bluetooth connection to your phone, the Amazfit GTS 4 can be used to receive and answer phone calls, to help you keep up with personal and professional contacts while on the move.<br><br><b>Features Fit For Every Lifestyle</b><br>Enhance the everyday with the Amazfit GTS 4's upgraded Shortcut Cards. Get all the information that's important to you compiled into one one super-clear list - with event-related cards like To-do List, Alarm Clock and even your currently-playing music, displayed at the top - for quick and easy viewing.<br><br>- Shortcut Cards<br>- Phone Call Notifications<br>- SMS Notifications<br>- App Notifications<br>- Call Quick Reply SMS<br>- Events Reminder<br>- Bluetooth Phone Music Control<br>- Find My Phone<br>- To Do Lists<br>- Alarm Clock<br>- Stopwatch<br>- Pomodoro Timer<br>- Weather<br>- Sedentary Reminder<br>- Screen Lock & Password<br>- Do Not Disturb<br>- More...<br><br><b>The Power to Stay In-style for Longer​</b><br>Crush your workout goals for up to eight days20 at a time. Primed for action, the battery of the Amazfit GTS 4 packs a 300 mAh rated value, and the watch's new Battery Saver Mode even enables continued use of features like sports modes, measurement of health metrics, and more, all while saving power. ​<br><br><b>Connect to the Zepp App</b><br>Friendly to both Android and iOS users, the Zepp App on your phone conducts health and exercise data display and analysis, features a watch face store, provides system updates for your watch, and facilitates smart device management.Amazfit GTR 4 Superspeed Black. Display diagonal: 3.63 cm (1.43"), Display technology: AMOLED, Display resolution: 466 x 466 pixels, Touchscreen. GPS (satellite). Battery capacity: 475 mAh. Weight: 34 g. Band material: Fluoroelastomer, Nylon, Band colour: Black, Band size: One Size. Operating system installed: Zepp OS