Amazfit T-Rex 3
Rugged AMOLED at half the price — dual-band GPS, offline maps, 27-day battery.
The Amazfit T-Rex 3 (2024) is a sport watch with a list price of $279 in our database. It is rated for about 27 days per charge, weighs 68 g with a 48 mm case and an AMOLED display, and includes built-in GPS, blood-oxygen (SpO₂), on-device music, offline maps and swim tracking. It works with both iPhone and Android.
Specs last updated
Specifications
What it is good at
- Long battery: rated about 27 days per charge, more than 86% of the sport watches in our database.
- Good value: listed at $279, cheaper than 86% of the sport watches in our database.
- Water-ready: rated 10ATM, suitable for swimming and surface water sports.
- Bright, vivid AMOLED display.
Best for
Features
Who should skip it
- You have a small wrist (under about 160 mm) — the 48 mm case we list is large (check whether a smaller size is sold).
- You want something light enough to sleep in — it weighs 68 g.
Frequently asked questions
How long does the Amazfit T-Rex 3 battery last?
The manufacturer rates it at about 27 days per charge. Always-on display, constant GPS and cellular use shorten that. Among the 29 sport watches in our database it beats about 86% on rated battery life.
Does the Amazfit T-Rex 3 work with iPhone and Android?
It works with both iPhone and Android.
Can I swim with the Amazfit T-Rex 3?
10ATM is suitable for swimming and surface water sports. It is not a dive rating unless the maker says so. It also has a swim-tracking mode.
How much does the Amazfit T-Rex 3 cost?
Our database lists $279 (May 2026). That is a list price, not today's price, so check the Amazon listing before you buy.
Who should not buy the Amazfit T-Rex 3?
It is a poor fit if any of these apply. You have a small wrist (under about 160 mm) — the 48 mm case we list is large (check whether a smaller size is sold). You want something light enough to sleep in — it weighs 68 g.