Design:
| screen size |
1.5" |
| Display type |
OLED/AMOLED |
| water resistance |
Sweat resistant |
| has branded damage-resistant glass |
✕ |
| resolution |
480 x 480 px |
| Watch band is replaceable |
✓ |
| has a touch screen |
✓ |
| weight |
59 g |
| waterproof depth rating |
100 m |
| Has sapphire glass display |
✓ |
| thickness |
14 mm |
| Always-On Display |
✓ |
| height |
48 mm |
| pixel density |
322 ppi |
| Has a display |
✓ |
| width |
48 mm |
| width of band |
22 mm |
| volume |
32.256 cm³ |
The Amazfit T-Rex 3 Pro boasts a 1.5″ OLED display with a resolution of 480 x 480 px and a pixel density of 322 ppi, ensuring sharp and vibrant visuals. The screen features an Always-On Display for continuous visibility, and the watch is equipped with sapphire glass for added durability. With a waterproof depth rating of 100 meters, it is well-suited for both sweat and water exposure. The watch also includes a replaceable band and has a compact yet solid design with a thickness of 14 mm and a weight of just 59 g.
Sensors:
| has GPS |
✓ |
| Has a heart rate monitor |
✓ |
| Monitors blood oxygenation levels |
✓ |
| Has a barometer |
✓ |
| has an accelerometer |
✓ |
| has a compass |
✓ |
| Has a temperature sensor |
✓ |
| Has a cadence sensor |
✓ |
| has a gyroscope |
✓ |
| Has a wind speed sensor |
✕ |
| Monitors perspiration |
✕ |
The Amazfit T-Rex 3 Pro is equipped with a comprehensive suite of sensors to track various physical metrics. It includes a heart rate monitor, pulse oximeter to monitor blood oxygen levels, and a body temperature sensor. Additionally, the watch features GPS, a barometer, an accelerometer, a compass, a cadence sensor, and a gyroscope, making it suitable for a wide range of activities and environmental conditions. However, it does not include a wind speed sensor or perspiration monitor.
Activity tracking:
| Has a route tracker |
✓ |
| Tracks distance |
✓ |
| Measures pace |
✓ |
| Has trackback mode |
✕ |
| Tracks your sleep |
✓ |
| Has multi-sport mode |
✓ |
| Detects activities automatically |
✓ |
| Tracks elevation |
✓ |
| Tracks steps taken |
✓ |
| Provides sleep reports |
✓ |
| Has exercise tagging |
✓ |
| Has a stroke counter for swimming |
✓ |
| Tracks calorie intake |
✓ |
| Designed for diving |
✓ |
| Designed for golf |
✕ |
The Amazfit T-Rex 3 Pro offers a wide range of activity tracking features, including route tracking, distance tracking, and pace measurement. It also supports multi-sport mode, allowing users to track a variety of exercises, while automatically detecting activities. Other key features include sleep tracking with sleep reports, steps tracking, and elevation tracking. Additionally, it includes a stroke counter for swimming, food tracking for calorie intake, and is designed for diving. However, it does not include a trackback mode or golf-specific features.
Connectivity:
| Is compatible with iOS |
✓ |
| Is compatible with Android |
✓ |
| supports Wi-Fi |
✓ |
| Bluetooth version |
5.2 |
| has a cellular module |
✕ |
| supports ANT+ |
✕ |
| Wi-Fi version |
Wi-Fi 4 (802.11n) |
| has NFC |
✕ |
The Amazfit T-Rex 3 Pro offers versatile connectivity options, supporting both iOS and Android devices for seamless synchronization. It includes Wi-Fi 4 (802.11n) for wireless internet access and Bluetooth 5.2 for stable connections with compatible devices. However, it does not have NFC, ANT+ support, or a cellular module.
Battery:
| battery power |
700 mAh |
| battery life |
25 days |
| battery life with GPS on |
116 hours |
| has wireless charging |
✕ |
| Has a solar power battery |
✕ |
| battery life in power save mode |
116 hours |
| has a rechargeable battery |
✓ |
| has a removable battery |
✕ |
The Amazfit T-Rex 3 Pro is equipped with a 700 mAh rechargeable battery, providing up to 25 days of battery life under normal use. With GPS activated, the battery lasts up to 116 hours, and the same duration is achievable in power save mode. However, it does not support wireless charging or a solar-powered battery, and the battery is not removable.
Features:
| release date |
September 2025 |
| has HRV tracking |
✓ |
| measures VO2 max |
✓ |
| measures resting heart rate |
✓ |
| has fast/slow heart rate notifications |
✓ |
| shows readiness level |
✓ |
| Can upload maps |
✕ |
| Has vibrating alerts |
✓ |
| Has a stopwatch |
✓ |
| Locates your phone |
✓ |
| Has silent alarm |
✓ |
| has irregular heart rate warnings |
✕ |
| has fall detection |
✕ |
| Has notifications |
✓ |
| Acquires GPS faster |
✕ |
| Has call control |
✕ |
| Provides the sunrise/sunset time |
✓ |
| Can be used to answer calls |
✓ |
| supports Galileo |
✓ |
| Has smart alarm |
✕ |
| Informs about the risk of thunderstorms |
✓ |
| warranty period |
1 years |
| number of microphones |
1 |
| has voice commands |
✕ |
| Has a built-in camera remote control function |
✕ |
The Amazfit T-Rex 3 Pro offers a variety of useful features designed to support health and convenience. It includes HRV tracking, VO2 max measurement, and resting heart rate monitoring, helping users track their fitness and recovery. Additionally, it provides vibrating alerts, a stopwatch, and phone locator capabilities. Other notable features include a silent alarm, sunrise/sunset times, and notifications. The watch also supports Galileo for improved GPS accuracy and can alert users to the risk of thunderstorms, although it does not have features like fall detection or voice commands.
App & Software:
| Provides activity reports |
✓ |
| Has inactivity alerts |
✓ |
| Counts how many calories you've burned |
✓ |
| Has goal setting |
✓ |
| Has achievements |
✓ |
| Free app |
✓ |
| Has exercise diary |
✓ |
| Ad-free |
✓ |
| Has weight tracking |
✓ |
| Tracks BMI |
✓ |
| Tracks water intake |
✓ |
| Has live tracking |
✓ |
| Has coaching |
✓ |
| Has temperature tracking |
✓ |
| Has period notifications |
✓ |
| Supports routes |
✓ |
| Syncs with existing calendars |
✓ |
| Has music playback |
✓ |
| Displays fertile window notifications |
✓ |
| Has food diary |
✓ |
| Includes maps |
✓ |
| Predicts start date |
✓ |
| Predicts ovulation |
✓ |
| Has video tutorials |
✓ |
| Supports widgets |
✓ |
| Can be personalised |
✓ |
| Has barcode scanner on app |
✕ |
The Amazfit T-Rex 3 Pro comes with a comprehensive suite of features through its app, offering activity reports, goal setting, and tracking for calories burned, weight, BMI, and water intake. It also includes an exercise diary, live tracking, and coaching for enhanced fitness monitoring. The app is free, ad-free, and supports personalization, syncing with existing calendars, and even provides workout music. Additionally, it tracks temperature, period notifications, and includes video tutorials, maps, and fertility predictions, while lacking a barcode scanner.
Miscellaneous:
| has a battery level indicator |
✓ |
| Is compatible with Windows |
✓ |
| Has auto pause |
✓ |
| Compatible with external heart rate monitors |
✓ |
| Compatible with smart scales |
✓ |
| Has passcode |
✓ |
| Is compatible with Mac OS X |
✓ |
| has an external memory slot |
✕ |
| has a socket for a 3.5 mm audio jack |
✕ |
The Amazfit T-Rex 3 Pro includes useful features like a battery level indicator and compatibility with both Windows and Mac OS X. It supports external heart rate monitors and smart scales, and allows for added security with a passcode. The watch also offers auto pause functionality, but lacks an external memory slot or a 3.5 mm audio jack.