The Amazfit T-Rex 3 has all the features needed to compete with established outdoor smartwatches, but its overly rugged look may not be to everyone's taste. Reviews by Anna Gora were published on March 19, 2025.
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(Photo: © Anna Gora) Live Science's conclusion
Given its robust functionality and accurate tracking capabilities, the Amazfit T-Rex 3 is a surprisingly capable smartwatch that can rival some high-end Garmin or Apple models for a fraction of the price. However, its design isn’t always suitable for everyday use.
TODAY'S BEST DEALS $234.99 at Amazon Pros
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Two weeks of battery life
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Durable body
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Highly accurate tracking functions
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Suitable for diving.
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Less than $300
Cons
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Big and heavy design
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Available in one size only.
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Not intended for strength training.
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Is it possible to get an outdoor watch with military-grade durability, long battery life, and a seemingly endless number of features for under $300? If you asked us that question a few years ago, we probably would have said no. But times have changed. Nowadays, quality smartwatches don’t have to cost a fortune—we learned that when we recently tested the TicWatch Atlas and were impressed by its excellent value for money. Now, we have another affordable option.
Designed for serious outdoor and fitness enthusiasts, the Amazfit T-Rex 3 promises up to 27 days of battery life, a rugged design, dual-band GPS, maps, an altimeter, and a host of other features useful for exploring the great outdoors. You can even use it for diving — the Amazfit T-Rex is waterproof to 328 feet (100 meters) and can withstand free diving to a depth of 147 feet (44.8 m). This rugged watch also features over 170 sports modes, voice control, AI coaching, and more.
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