Today Amazfit released the ultra-rugged Amazfit T-Rex Pro for $179.99 available on Amazon and us.amazfit.com. As the latest edition of its outdoor sports series of smartwatches, the Amazfit T-Rex Pro is built to last with 15 military-grade certifications for extreme temperatures and conditions, and has passed three additional endurance tests. New functionality also includes 10 ATM water-resistance, a blood-oxygen saturation measurement system, four global navigation satellite systems, a barometric altimeter and more than 100 sports modes. Let’s take a deeper dive into all the features enabling you to #ExploreYourInstinct. 

Tough Inside and Out
The Amazfit T-Rex Pro has all the information you need at a glance and is easy to read on the clear 1.3-inch always-on AMOLED color display. Designed for the outdoors, the 15 military-grade certifications^[1] makes it a reliable wearable capable of enduring challenging environments. Shock-resistant and able to withstand extreme weather, from ultra-dry deserts to humid rainforests, the Amazfit T-Rex Pro is the ultimate outdoor sports companion for those looking to push the limits.

With an attractive angular design, the outer bezel is treated with a metal-spraying process to enhance the rich textures of the lightweight watch body. Alongside its resilient and skin-friendly silicone strap with a sweat-wicking design, the Amazfit T-Rex Pro comes in three colors reflecting nature: Meteorite Black, Desert Grey and Steel Blue.

The Outdoors Unlocked
Powerful features mean the Amazfit T-Rex Pro is your partner for outdoor sports and activities. With four global navigation satellite systems^[2] supported, the Amazfit T-Rex Pro is able to help track your location in more complicated environments than possible with GPS alone. Whether you’re scaling a mountainside or taking a casual hike, you can measure your blood-oxygen saturation^[3] to get feedback on how well you’re handling the altitude^[4]. A barometric altimeter will also record how high you’ve climbed.

The 10 ATM^[5] water resistance enables you to  swim, surf, sail and endure even the wettest conditions for up to 18 days of battery life^[6] with typical use. Stay up-to-date with changes in nature using the weather tracker^[7], sunrise and sunset monitor^[8] and current moon phase display^[9]. The Amazfit T-Rex Pro is your partner in exploration, as well as your companion to help you unlock all the outdoors has to offer. 

Exercise to the Fullest
With over 100 different sports modes^[10] available, the Amazfit T-Rex Pro can track your heart rate, distance, speed, and calories burned through almost all popular sports and activities. Our Firstbeat™ algorithm assesses specialized data such as your maximum oxygen uptake^[11], full recovery time and training load, and monitors your progress and accomplishments. Additionally, our ExerSense™^[12] algorithm automatically recognizes eight sports modes and records all related data.

Extensive Health Tracking 
The Amazfit T-Rex Pro is equipped with the BioTracker™ 2 PPG Bio-Tracking Optical Sensor, which performs precise heart rate monitoring^[13] 24 hours a day and issues an alert if your heart rate gets too high. The watch also tracks heart rate variability (HRV) to record your response to stress.

Utilizing the power of Personal Activity Intelligence (PAI)™ health assessment system^[14], this smartwatch gives users a PAI score that's calculated by processing workout data, heart rate and other tracked fitness data. This easy to understand personalized health evaluation will help track the benefits of your workouts and activities. Armed with this knowledge, you can set your next health and fitness goal to achieve new personal bests.

Quality rest and sleep are the foundations of good physical and mental health. Achieving an all-important night of sleep is within your reach with Amazfit’s SomnusCare™ sleep-quality monitoring^[15] feature. The Amazfit T-Rex Pro recognizes different sleep states, such as the light, deep and REM sleep stages, detects daytime naps, and monitors potential breathing problems^[16] when you are asleep.

Everyday is an Adventure 
Manage your day-to-day, from work to exploration, with the Amazfit T-Rex Pro--your ultimate assistant to a balanced lifestyle.  The Amazfit T-Rex Pro notifies you of any incoming text messages or calls, scheduled alarms and events to prevent you from missing any important information. It can also easily control music playback on your mobile phone via Bluetooth, so enjoy your favorite playlists on-the-go.

[1] The relevant data on this topic comes from the following report: H202005252293-01EN-G2. Prolonged exposure is not recommended as it may damage the watch and its components.
[2] GPS+GLONASS, GPS+BeiDou, GPS+Galileo. Indoor positioning services are not supported. Positioning speed and accuracy may be affected by the surrounding environment.
[3] SpO2 level can affect the oxygen level to various organs. If the level is too low, it could lead to dizziness, headaches, or cardiac arrest. This product is not a medical device. The measurement data is intended for reference only and cannot be used to perform professional diagnosis or monitoring of any medical conditions. Additionally, data accuracy will be affected if the sensor area makes contact with skin that has arm-hair or tattoos, and can vary depending on physical characteristics. To measure SpO2, please keep your arm still.
[4] When you reach 3,000+ meters, the watch will prompt you to take the blood-oxygen saturation test when you ascend over 400 meters within 24 hours; when you reach 4,000+ meters, it will prompt you to take the test when you ascend over 400 meters within 6 hours.
[5] In accordance with the GB/T 30106-2013 / ISO 22810:2010 standard, the Amazfit T-Rex Pro achieves a rating of 10 ATM, for a water-resistance of up to 100 meters, and is therefore suitable for splashes, snow, showering, swimming, snorkeling, or non-high-speed watersports. It has passed testing conducted by the National Watch Quality Supervision and Inspection Center, and the report number is XRX-ESH-P20062174. Remove the watch when taking a hot shower or trip to the sauna, since too much steam can affect the seal and make it less water-resistant in future. For more information, please visit the support page at: support.amazfit.com.
[6] The battery life may vary according to the settings, operation conditions and other factors. So the actual result may differ from the laboratory data.  Typical usage scenario: Worn for consecutive 24-hour periods, heart-rate monitoring (data recorded every 10 minutes) is turned on, and SpO2 is measured twice a day. Every day, the screen turns on to display 150 messages and is operated for 5 minutes, and the user raises the wrist 30 times to check the time. The user exercises 90 minutes every week.
Heavy usage scenario: Worn for consecutive 24-hour periods, heart-rate monitoring and assisted sleep monitoring are turned on (data recorded every 1 minute), sleep breathing quality is enabled, and SpO2 is measured twice a day. Every day, the screen turns on to display 150 messages and is operated for 15 minutes, the user raises the wrist 100 times to check the time, and exercises 180 minutes every week.
GPS continuous working time: 40 hours; turn on GPS recording motion track, turn on heart rate monitoring.
[7] Obtaining weather data as well as sunrise and sunset time requires an external connection to the mobile app.
[8] Obtaining weather data as well as sunrise and sunset time requires an external connection to the mobile app.
[9] Obtaining moon phase data requires setup of the specific watch face.
[10] See the Amazfit T-Rex Pro product web page for the full list of 100+ sports modes, here: https://www.amazfit.com/en/t-rex-pro.html
[11] Maximum oxygen uptake detection is only supported in outdoor running mode.
[12] The accuracy and sensitivity of the workout recognition feature varies from person to person, and are related to the posture and proficiency of the user during their workout. Short workout duration or frequent changes in posture may not trigger the automatic recognition feature. When you are driving a car or taking a bus, or taking part in other such activities, accidental recognition may be triggered if these activities are particularly similar to the selected workout mode. When you are conducting outdoor activities, if the GPS signal is poor or the AGPS data information has not been synchronized with the mobile phone for an extended period, these outdoor activities may be assessed as indoor activities. 
[13] The 24-hour automatic heart rate detection feature requires the user to set and turn on the "heart health detection" feature in the app, and the minimum value can be set to 1 minute; this feature cannot be used for medical purposes or as a basis for medical diagnosis. For abnormally elevated heart rate alerts, when the set alert value is reached and there is no obvious activity in the last 10 minutes, the watch will vibrate. The detection results are provided for reference only. Please consult professional medical institutions if you feel unwell. Heart rate measurement cannot be performed while swimming, and the measurement accuracy may be affected by external factors.
[14] The HUNT Fitness Study indicates that people who maintain a PAI score of 100 or higher show lower risk of hypertension, heart disease, and type-2 diabetes. HUNT Fitness Study: This study was conducted by Professor Ulrik Wisloff of the Faculty of Medicine, Norwegian University of Science and Technology. It lasted for more than 35 years and had more than 230,000 participants.
[15] Sleep monitoring can record night sleep and naps that last more than 20 minutes. Any sleep period that starts or ends between 10pm-8am will be recorded as night sleep, and if you fall asleep within a 60-minute window at either side of your night sleep period, it will also be recorded as night sleep. Sleep recordings that start or end over 60 minutes outside your night sleep period, and that do not overlap the 10pm-8am time slot at any point, will be recorded as a nap.
[16] Sleep breathing quality monitoring needs to be activated separately.