T-Rex 3 Pro vs T-Rex 3

5 of 9 tracked specs changed between 2024-09 and 2025-09; launch price moved from $279.99 to $399.99.

What changed: weight, battery (smartwatch), battery (gps), water rating, signature.

Launch prices are historical. Price links may earn us a commission. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.

	T-Rex 3 Pro2025-09	T-Rex 32024-09
Launch price	$399.99	$279.99
Display	1.5″ AMOLED, 2000 nits	1.5″ AMOLED, 2000 nits
Weight	52 / 46.8 g (48 / 44 mm, no strap)	68.3 g (no strap)
Battery (smartwatch)	25 days	27 days
Battery (GPS)	38 h; 85 h max	42 h; 180 h max
Dual-band GNSS	Yes	Yes
Offline maps	Yes	Yes
Water rating	10 ATM	10 ATM, dive-rated
Mic + speaker	Yes	Yes
Signature	Titanium build with a speaker	Dive-rated flagship with a mic and flashlight

Battery figures are launch-day claims.

As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.