Amazfit - T-Rex 3 Smartwatch 48mm Silicone - Black - (2025)
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Specifications
- Screen Size48 millimetersTouch ScreenYesOperating System CompatibilityAndroid, Apple iOSOperating SystemZepp OSApp CompatibleYesBuilt-in Storage26 gigabytes
- Key Specs
- Screen Size: 48 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
- Operating System Compatibility: Android, Apple iOS
- Operating System: Zepp OS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Built-in Storage: 26 gigabytes
- Global Positioning: GPS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Usage Time: 648 hours (All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings.)
- Metrics Measured: Blood oxygen, Hours slept, Calories burned, Calories burned, Cycling speed, Distance swam, Distance traveled, Duration of exercise, Duration of sleep stages, Hours slept, Laps swam, Pace, Resting heart rate, Respiration rate, Skin temperature, Steps taken, Steps taken, Target heart rate, VO2 Max, Running/Walking speed
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 10 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Band Material: Silicone
- General
- Brand: Amazfit
- Model Number: W2323GLEN
- Product Name: T-Rex 3 Smartwatch 48mm Silicone
- Color: Black
- Product Type: Smartwatch, Activity tracker
- Form Factor: Wristwatch (The size, arrangement, and physical configuration of the product.)
- Model Family: Amazfit
- Year of Release: 2025
- Design
- Case Shape: Octagonal
- Band Type: Silicone
- Band Color: Black
- Clasp Type: Buckle
- Rotating Bezel: false (Rotating the bezel controls the various functions of the device.)
- Dimensions
- Band Width: 22 millimeters
- Product Height: 0.54 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 1.90 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 0.15 ounces (The out of box weight of the item.)
- Product Length: 1.90 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
- Minimum Wrist Size: 145 millimeters
- Maximum Wrist Size: 210 millimeters
- Band Size: Adjustable
- Display
- Display Screen: true
- Screen Size: 48 millimeters (Size of the screen, measured diagonally from corner to corner.)
- Touch Screen: true (Touch-screen devices make navigating more intuitive. Using a touch-screen display, you can do things such as tap to select, hold and drag to move items, swipe to scroll, and pinch to zoom.)
- Screen Resolution: 480 x 480 (Screens come in a range of resolutions (measured in pixels, horizontal x vertical). The higher the resolution, the greater the picture quality.)
- Display Type: AMOLED, Digital
- Color Display: true
- Clock Display: true
- Backlit Display: true (Integrated lights allow for visibility of the display in low-light conditions.)
- Adjustable Brightness: true
- Customizable Watch Faces: true
- Screen Material: Gorilla Glass
- Compatibility
- Operating System Compatibility: Android, Apple iOS
- Operating System: Zepp OS (The operating system manages all software and hardware, including files, memory and connected devices. Most importantly, it lets you interact with your device and your programs in a visual way; otherwise, you'd be typing computer code to get anything done.)
- App Compatible: true (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
- Voice Assistant Built-in: Other (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
- Connectivity
- Data Plan Required: false
- Bluetooth Version: 5.2 (The Bluetooth specification formalized by the Bluetooth Special Interest Group. All versions of the Bluetooth standard are backwards compatible with previous versions.)
- Wireless Connectivity: Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- Features
- Built-in Storage: 26 gigabytes
- GPS Enabled: true
- Global Positioning: GPS (A system of satellites which enables a mobile receiver to determine its precise location based on signals received from satellites such as the US Global Positioning System (GPS), the Russian Global Navigation Satellite System (GLONASS), the European Global Navigation Satellite System (Galileo), or the Japanese Quasi-Zenith Satellite System (QZSS).)
- Usage Time: 648 hours (All battery claims depend on network configuration and many other factors; actual results will vary. Battery has limited recharge cycles and may eventually need to be replaced. Battery life and charge cycles vary by use and settings.)
- Mobile Notifications: true
- Alert Type: Vibration, Visual, Audible
- Music Player: true
- Silent Alarm: true
- Built-In Microphone: true
- Voice Activated: true (Able to interpret dictation and/or respond to simple voice commands.)
- Activity
- Metrics Measured: Blood oxygen, Hours slept, Calories burned, Calories burned, Cycling speed, Distance swam, Distance traveled, Duration of exercise, Duration of sleep stages, Hours slept, Laps swam, Pace, Resting heart rate, Respiration rate, Skin temperature, Steps taken, Steps taken, Target heart rate, VO2 Max, Running/Walking speed
- Multi-Sport Tracking: true
- Sensors: Accelerometer, Barometer, Optical heart rate (PPG) sensor, Pulse oximeter (Sp02) sensor, Geomagnetic sensor (Detects stimuli such as heat, light, sound, motion, or pressure and responds accordingly by operating a control or initiating a function of the device.)
- Performance
- Protective Qualities: Water resistant
- Maximum Depth of Water Resistance: 10 feet (Measurement of the maximum depth of water in which the product is able to resist some degree of water penetration.)
- Power
- Rechargeable: true
- Battery Strength Indicator: true
- Battery Capacity: 700 milliampere hours (The amount of energy stored in the battery.)
- Charging Interface(s): Wireless (The connection for transmitting power to charge the device.)
- Battery Chemistry: Lithium-ion
- Replaceable Battery: false
- Material
- Band Material: Silicone
- Case Back Material: Stainless steel bezel, Polymer middle frame
- Camera
- Integrated Camera: No
- Warranty
- Warranty - Parts: 1 year
- Warranty - Labor: 1 year
- Other
- UPC: 850058994703
The Amazfit T-Rex 3 tactical smart watch is designed for the adventurous individual seeking durability and versatility in their smartwatch. This smartwatch for men and women combines ruggedness with advanced technology, making it an ideal choice for outdoor enthusiasts. With a 48mm military-grade build, it resists extreme temperatures from 158°F to -22°F and is water-resistant up to 328 feet, perfect for surfing and freediving. This Amazfit watch boasts an impressive 27-day battery life, providing reliability even on extended expeditions. Its vibrant AMOLED display reaches peak brightness of 2,000 nits, allowing you to view maps and workout data clearly, even in bright sunlight or challenging conditions. As a GPS watch, it provides dual-band positioning with six satellite systems, ensuring precise tracking for your adventures. The Amazfit T-Rex 3 not only serves as a GPS watch but also includes health monitoring features, such as a heart monitor watch and a smart watch blood pressure monitor, keeping you informed of your biometric data. Stay connected with its capabilities as a smartwatch that can call and text, offering seamless communication. It is one of the premier smart watches for men and women, Android compatible, catering to those with dynamic lifestyles. Plus, with over 170 workout modes and AI training plans, this health tracker watch supports enduring fitness pursuits. Whether you seek a smartwatch for women or men smart watches, the Amazfit T-Rex 3 caters to a wide array of users, providing an extensive suite of functions and an authoritative design for any adventurer.
- Up to 20 Days of Battery Life: Stay charged for longer with up to 20 days of typical use, or up to 45 days in battery saver mode—perfect for extended outdoor adventures.
- Rugged Military-Grade Durability: Built to withstand extreme environments, the Amazfit T-Rex 3 has passed 15 military-grade tests, making it ready for harsh weather, drops, and tough terrain.
- Bright AMOLED Display: Enjoy a vivid, ultra-clear view on the 1.43” AMOLED touchscreen with 1,000 nit peak brightness—easy to read even in direct sunlight.
- Dual-Band GPS & Offline Maps: Navigate with precision using dual-band satellite positioning and download offline maps to explore confidently without a phone connection.
- 100+ Sports Modes with Smart Recognition: Track over 100 activities—including hiking, skiing, and strength training—with smart auto-recognition for 8 common exercises.
- 24/7 Health Monitoring: Continuously track heart rate, blood oxygen, stress, and sleep quality, including sleep breathing rate and nap detection.
- AI-Powered Fitness Guidance: Receive intelligent insights and recovery recommendations powered by Zepp Coach to help you train smarter and avoid overexertion.
- Adventure-Ready Tools: Access a suite of essential tools like a compass, barometer, altimeter, and sunrise/sunset tracker—ideal for outdoor excursions.
- Customizable Watch Faces: Choose from 100+ watch faces or upload your own photo to personalize your smartwatch to match your style or adventure.
- FSA/HSA Eligible: Your Amazfit purchase may qualify for HSA or FSA reimbursement. You can submit your Best Buy confirmation email to your HSA or FSA provider as proof of purchase.
Whats Included
- Smartwatch
- Manual
- Charger
A: Hi PrairieDweller, no unfortunately the battery is not replaceable. Our watches are rated to last around 3-5 years depending on use. Michael | Amazfit Support
Q: Can you take/make calls through Bluetooth on this watch?
A: Hi DaveM, no you are not able to take/make calls through Bluetooth on the T-Rex 3. Please refer to the T-Rex 3 Pro version for this feature. Michael | Amazfit Support
A: Hi Marcus, thank you for leeting us know. We have already notified BestBuy on it and it is in the process of getting corrected. Michael | Amazfit Support
A: Hi Marcus, thank you for leeting us know. We have already notified BestBuy on it and it is in the process of getting corrected. Michael | Amazfit Support
Compare similar products
The Amazfit T-Rex 3 tactical smart watch is designed for the adventurous individual seeking durability and versatility in their smartwatch. This smartwatch for men and women combines ruggedness with advanced technology, making it an ideal choice for outdoor enthusiasts. With a 48mm military-grade build, it resists extreme temperatures from 158°F to -22°F and is water-resistant up to 328 feet, perfect for surfing and freediving. This Amazfit watch boasts an impressive 27-day battery life, providing reliability even on extended expeditions. Its vibrant AMOLED display reaches peak brightness of 2,000 nits, allowing you to view maps and workout data clearly, even in bright sunlight or challenging conditions. As a GPS watch, it provides dual-band positioning with six satellite systems, ensuring precise tracking for your adventures. The Amazfit T-Rex 3 not only serves as a GPS watch but also includes health monitoring features, such as a heart monitor watch and a smart watch blood pressure monitor, keeping you informed of your biometric data. Stay connected with its capabilities as a smartwatch that can call and text, offering seamless communication. It is one of the premier smart watches for men and women, Android compatible, catering to those with dynamic lifestyles. Plus, with over 170 workout modes and AI training plans, this health tracker watch supports enduring fitness pursuits. Whether you seek a smartwatch for women or men smart watches, the Amazfit T-Rex 3 caters to a wide array of users, providing an extensive suite of functions and an authoritative design for any adventurer.
Whether you are pushing your limits on a rugged trail, diving beneath the surface, or training for your next big race, the T-Rex 3 Pro is built for those who train without compromise. Crafted with tough, premium materials, it is made to withstand the harshest conditions while delivering precise tracking and performance insights. With all-day comfort and exceptional battery life, it keeps you connected to your goals and in control of every moment - no matter where your adventure takes you.
Whether you are pushing your limits on a rugged trail, diving beneath the surface, or training for your next big race, the T-Rex 3 Pro is built for those who train without compromise. Crafted with tough, premium materials, it is made to withstand the harshest conditions while delivering precise tracking and performance insights. With all-day comfort and exceptional battery life, it keeps you connected to your goals and in control of every moment - no matter where your adventure takes you.
Engineered as a premium multi-sport training partner, the Amazfit Balance 2 empowers driven professionals and athletes to push their limits across every discipline, from running and strength training to golf, scuba diving, and beyond. Combining elite fitness tracking, intelligent wellness insights, and next-level versatility, Balance 2 is built to optimize performance, recovery, and everyday life. With its sleek, durable design and powerful ecosystem integration, it adapts seamlessly to every goal, helping users train smarter, recover better, and come back even stronger tomorrow.
| Pros for Amazfit - T-Rex 3 Smartwatch 48mm Silicone - Black - (2025) | |||
|---|---|---|---|
| Battery Life | There were no pros for this product— | There were no pros for this product— | Battery Life, Build Quality, Comfort, GPS Accuracy, Tracking Performance |
Specs
Reviews
Customers are saying
Customers are positive about the T-Rex 3 Smartwatch, particularly regarding its battery life. Users seem to appreciate the longevity of the battery.
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Rated 5 out of 5 stars
Amazfit
Awesome watch love all the features and looks amazing. Still getting the hang of all the cool features
AndreM Posted
- Rated 5 out of 5 stars
Loving it.....
Love the watch, getting around 18 days battery life with most everything turned on . Have set on lift to view instead of constant on.
BruceG Posted
- Rated 5 out of 5 stars
Rugged, Reliable, and Worth the Price
The build quality feels rugged and durable — great for daily wear and outdoor use. The display is large and bright, which makes it easy to read outdoors
MohammadM Posted
