Amazfit T-Rex 3 Pro vs COROS PACE 4: which should you buy?

Our pick

Get the COROS PACE 4

Winner for most people: COROS PACE 4. It is the better fit for running and workouts.

Winner: COROS PACE 4

Dive rating

5 ATM (surface water, not diving) vs 10 ATM; freediving and recreational scuba to 45 m

$249COROS · Checked Nov. 1, 2026

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Key differences

Water resistance: 10 ATM vs 5 ATMAmazfit T-Rex 3 Pro: 10 ATM (10 ATM; freediving and recreational scuba to 45 m) ConfirmedSourceCOROS PACE 4: 5 ATM (5 ATM (surface water, not diving)) ConfirmedSource

From each maker's own specifications. A point is listed only when both makers state a figure and the two differ; a point either maker does not state is left out, never guessed. Two figures measured under different conditions are shown side by side, not compared.

Who should buy which

The Amazfit T-Rex 3 Pro Guide names it for outdoor adventure.Outdoor adventure: Certified for diving to 45 meters, it suits both freediving and recreational scuba diving. ConfirmedSource
The COROS PACE 4 Guide names it for running.Running: Threshold pace and race-time estimates proved useful and accurate on runs, and training load and recovery stats come built in. Source linkedSource