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Amazfit T-Rex 3 Outdoor Smartwatch 48mm AMOLED Display, Offline Maps & Navigation, 6 Satellite Systems Dual Band GPS, 27 Days Battery Life, NFC Payment, 170 Sports Mode, 45m Freediving for Adventure
£321.31 – £334.14Price range: £321.31 through £334.14
Conquer the toughest terrains with the Amazfit T-Rex 3, a military-grade outdoor smartwatch featuring a 48mm AMOLED display with a blinding 2,000 nits peak brightness. Designed for elite athletes and explorers, it combines ultra-precise dual-band 6-satellite GPS with free offline maps and a specialized 45m freediving mode for unparalleled adventure navigation.
- Military-Grade Endurance: Built with a 316L stainless steel bezel to withstand extreme temperatures ranging from -30°C to 70°C and certified 10 ATM water resistance.
- Epic Battery Performance: Stay off the grid longer with up to 27 days of typical battery life or up to 180 hours in continuous GPS long battery mode.
- Professional Fitness Tracking: Access over 170 sports modes and personalized AI coaching via the Zepp App to dominate every workout from rucking to archery.
- Smart Connectivity & Payments: Experience seamless contactless transactions with Zepp Pay and fully integrated AI-guided voice control for hands-free operation.
Shipping & Delivery
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Courier delivery under £30
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From £4.99
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Prime delivery
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1-2 Days
From £12.99
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Manufacture Warranty 1 Year
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Free 30-Day returns





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Product Description
Product Overview
Conquer the wild with the Amazfit T-Rex 3, the ultimate rugged outdoor smartwatch engineered for athletes, explorers, and adrenaline seekers. Featuring a stunning 48mm AMOLED display with a blinding 2,000 nits peak brightness, this military-grade powerhouse ensures crystal-clear visibility even under direct desert sun or during midnight treks. Built to endure extreme environments, it boasts a 316L stainless steel bezel and can withstand temperatures from a scorching 70°C to a freezing -30°C. Whether you are navigating uncharted territory with free offline maps and ultra-precise dual-band 6-satellite GPS, or diving to depths of 45m with its specialized freediving mode, the T-Rex 3 is your indestructible companion. With a revolutionary 27-day battery life and over 170 sports modes, including professional-grade AI coaching via the Zepp App, this watch doesn’t just track your journey—it empowers you to lead it.
Key Features
- Ultra-Bright 1.5-Inch AMOLED Display: Experience vibrant visuals with 2,000 nits peak brightness, featuring Glove Mode for cold-weather responsiveness and Night Mode for reduced eye strain.
- Military-Grade Durability: Crafted with a high-strength 316L stainless steel bezel and buttons, designed to survive extreme heat, cold, and physical impact.
- Advanced Navigation & Offline Maps: Never lose your way with free downloadable topo and road maps, supported by dual-band GPS and a 6-satellite positioning system for pinpoint accuracy.
- Epic 27-Day Battery Life: Stay off the grid longer with up to 27 days of typical use or 180 hours in continuous GPS Long Battery Life mode.
- Pro-Level Diving & Water Resistance: Certified 10 ATM water resistance allows for freediving up to 45 meters and reliable performance in high-speed water sports.
- 170+ Sports Modes & AI Coaching: From rucking to archery, track every move with precision and receive personalized training plans through the Zepp AI Coach.
- Smart Connectivity & NFC: Make seamless contactless payments with Zepp Pay and enjoy AI-guided voice control and speech-to-text replies directly from your wrist.
Important Information
- Compatibility: Fully compatible with Android and iOS devices via the free Zepp App.
- Connectivity: Features Bluetooth 5.2 and Wi-Fi for fast data synchronization and software updates.
- Privacy Control: Includes customizable GPS privacy settings, allowing you to disable location permissions for maximum data security.
- Charging: Utilizes a magnetic charging base; a full charge takes approximately 2 hours.
Why Choose Think Assemble
- Quality Assurance: We source only genuine, high-performance tech from leading brands like Amazfit to ensure you receive a product that lasts.
- Expert Product Knowledge: Our team consists of outdoor enthusiasts who understand the technical specs of your gear and are ready to support your purchase.
- Fast & Reliable Shipping: Get your adventure gear quickly with our prioritized logistics and secure packaging.
- Dedicated Customer Support: Experience peace of mind with our responsive after-sales service, assisting you with everything from setup to troubleshooting.
Specification
Overview
| Color | Bundle with T-Rex 3 black |
|---|---|
| Style | Sporty |
| Compatible with | Smartphone, tablet, PC |
| Display type | AMOLED |
| Shape | Round |
| Meter | Heart Rate Monitor, Blood Oxygen Monitor |
| Included components | OWS Bluetooth 5.3 Headphones |
| Brand | Amazfit |
| Item model number | T-Rex 3 |
| ASIN | B0DPG911YK |
| Date First Available | 5 Dec. 2024 |
| Manufacturer | Amazfit |
| Colour Name | Bundle with T-Rex 3 black, Bundle with T-Rex 3 orange |
Customers Love Saving Every Single Day
From first-time shoppers to loyal regulars, our customers agree: everyday low prices beat waiting for a sale. Read their experiences below.
8 reviews for Amazfit T-Rex 3 Outdoor Smartwatch 48mm AMOLED Display, Offline Maps & Navigation, 6 Satellite Systems Dual Band GPS, 27 Days Battery Life, NFC Payment, 170 Sports Mode, 45m Freediving for Adventure
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alps –
Great watch!! So I needed a new watch for work as my old Casio G shock died after a few years. As I work as an electrical engineer on the underground power network, I needed a strong watch that was durable in outdoor conditions. I was tempted to buy another Casio G shock but liked the idea of a smart watch but didn’t like the idea of needing to charge it every 1 or 2 days and thought they were a little delicate for what I need it for. After some research I decided to go for the Amazfit T rex 3 and wasn’t disappointed!Pros;Battery life, with daily use battery lasts over 20 days!Sturdy, very well built, don’t feel nervous about using it in extreme conditions, I brought a glass screen protector just for some extra protectionVery easy to use and fully of features, very quick and responsive.Cons;Size, it’s not a slim watch, it’s quite chunky which for my I don’t mind as I can live with that trade off for the extra strong built quality and plenty of battery life but just bare in mind it may be a bit too thick to slide under most long sleeves.Connectivity, it’s not laggy at all but there has been a few instances where I’ve missed notifications and the watch has lost connectivity with my phone so I’ve had to open the app and sync it and it starts working again. It’s only happened a few times so not a big deal.Too many features, this can be a pro and con but I find it packed with that many features it can sometimes feel overwhelming and most of the apps and features you’ll hardly use or they don’t work very well. Such as the work out app, it’s great if you’re going for a run but if you’re having a gym workout, the app doesn’t accurately measure reps and most the time you want to have a workout and just get on with it rather then fiddling with your watch the whole time.Overall I’d recommend it, great value for money even though I missed out on the Black Friday deal and paid £253, at £210 on black Friday it’s a no brainer, you’d easily pay a lot more for a garmin equivalent.
Ruald Coleman –
It’s slightly bigger than the old Trex 2 but performs in a similar way. The charger has become a c type and you get a small adapter thats magnetic which sticks to the rear of the watch. Charging is pretty rapid and the battery does last for weeks. I bought mine to monitor my health heart rate etc and in that regard it’s pretty useful. The Zepp app links to your watch and will give you a comprehensive feedback on your activities. There is a subscription service should you wish to get ongoing assessments of your health and workout activities. On the wrist it’s comfortable and being waterproof and quite tough will still function in and out of water. I found the slightly larger screen useful for reading downloaded maps. It’s fairly simple to set up and practically useful on a daily basis. My old watches have become redundant. Would I recommend it yes I would. It’s far cheaper than many similar smart watches and every bit as useful. There are literally hundreds of watch faces to choose from free and paid for, the latter being quite cheap too. A very good smart watch.
Vive –
I’ve been using the AMAZFIT T-Rex 3 for over a month now, and it’s hands down one of the best outdoor smartwatches I’ve owned. Built like a tank yet surprisingly sleek, it’s packed with features that make it perfect for serious adventurers and fitness enthusiasts.🛰️ Navigation & GPS Accuracy:The dual-band GPS and support for 6 satellite systems make navigation incredibly accurate, even in remote areas. The offline maps feature is a life-saver when hiking in places with no signal. It locks onto satellites fast and keeps the route tracking consistent and reliable.📱 Display & Durability:The AMOLED display is bright, sharp, and readable even under harsh sunlight. The rugged design looks tough and can definitely handle rough use – perfect for trails, water, and all types of outdoor sports.💪 Fitness & Sports Modes:With 170+ sports modes, it covers everything from running and strength training to freediving up to 45m! It’s also got advanced metrics that fitness lovers will appreciate – heart rate, SpO2, VO2 Max, recovery time, and more.🔋 Battery Life:This is where the T-Rex 3 shines. I got close to 3 weeks of battery life with moderate use (notifications on, GPS workouts 3–4 times a week). Even with heavy GPS use, it holds strong for days. You won’t need to charge it every night like most smartwatches.💳 Extras – NFC & App:NFC payment support is a cool addition, especially when I don’t want to carry my wallet during workouts. The Zepp app syncs quickly and offers a clean interface to review health stats, routes, and sleep tracking.✅ Final Verdict:The AMAZFIT T-Rex 3 is a beast of a watch – feature-rich, ultra-durable, and built for real adventure. Whether you’re a hiker, diver, cyclist, or just love the outdoors, this watch delivers on performance and battery life. Plus, it looks great on the wrist!Would 100% recommend to anyone who wants a reliable outdoor companion. 🔥
dobi-dobi-do –
More than amazing, highly recommended ✨🥰
More than amazing, highly recommended ✨🥰
Think Assemble Customer –
Excellent
Excellent watch.The best part is the long lasting battery!
Peter Dierckx –
Amazfit T Tex 3
Voldoet aan de verwachtingen, batterij gaat lang mee alvorens op te laden, heeft alle functies voor de gemiddelde sporter
Robert Windhager –
Fabelhafte Smartwatch
Ich liebe alles an dieser Smartwatch.* Das Display ist nicht nur gestochen scharf, sondern auch die Farben sind zum Verlieben schön.* Sie hat alle Sensoren und Features, die man braucht.* Bietet unglaublich viel Speicher für offline Karten, MP3-Files etc.* Hat Bluetooth und WLan.* Eine recht brauchbare App für’s Handy.* Ist nicht zu schwer und auch nicht zu teuer.* Der Akku hält super-lange.Nach einem halben Jahr Benutzung wüsste ich immer noch nichts, das ich an dieser Smartwatch auszusetzen hätte.
Think Assemble Customer –
One of the best looking affordable smartwatch with unbelievable battery life !
Great watch. So smooth and battery lasts atleast 10 days with extensive use. Good value for 270 Euros (2700 sek).Easy to change the strap using the tools provided ( any 22 mm strap will work).Excellent app, and watch faces. So stylish looking.