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

Answer worked out Oct. 31, 2026

Amazfit T-Rex Dual Solar price: Checked Oct. 31, 2026

COROS PACE 4 Pro price: Checked Oct. 30, 2026

Most people: get the COROS PACE 4 Pro, because it is the better fit for more of what people buy these for.

Get the COROS PACE 4 Pro for running and workouts.

I'm looking for

My phone

Amazfit T-Rex Dual Solar vs COROS PACE 4 Pro

AMAZFIT

Amazfit T-Rex Dual Solar

$649.99 at Amazon

COROS

COROS PACE 4 Pro

$449 at COROS

Amazfit T-Rex Dual Solar: 10 ATMWater resistance−5 ATMCOROS PACE 4 Pro: 5 ATM
Amazfit T-Rex Dual Solar: 1.32 in AMOLED, 466 × 466, up to 3,000 nits, sapphire glass; solar charging through the displayDisplayCOROS PACE 4 Pro: 1.47 in LTPO AMOLED, 466 × 466, up to 3,500 nits, sapphire glass
Amazfit T-Rex Dual Solar: Typical use: up to 25 days (34 days with 3 hrs of daily sun on the front, 51 days on the back); accurate GPS: up to 41 hrs; Outdoor Extreme: up to 40 daysBatteryCOROS PACE 4 Pro: GPS: up to 60 hrs (45 hrs always-on); dual-frequency: 40 hrs (30 hrs); daily use: 21 days (7 days always-on)
Amazfit T-Rex Dual Solar: 69g watch body; strap 25.5gWeightCOROS PACE 4 Pro: 38g watch body only; 43g with nylon band, 51g with silicone band
Amazfit T-Rex Dual Solar: $649.99Price today$200.99 apartCOROS PACE 4 Pro: $449

Amazfit T-Rex Dual Solar

Buy at Amazfit$649.99

We may earn a commission.

COROS PACE 4 Pro

Buy at COROS$449

We may earn a commission.

All the details

Key differences

Not enough for an overall lead: the Amazfit T-Rex Dual Solar is ahead on water resistance only. Close on peak brightness (3,000 vs 3,500 nits). It also costs about $201 more today.

Peak brightness: close (3,000 vs 3,500 nits)Amazfit T-Rex Dual Solar: 3,000 nits ConfirmedSourceCOROS PACE 4 Pro: 3,500 nits ConfirmedSource
Water resistance: 10 ATM vs 5 ATMAmazfit T-Rex Dual Solar: 10 ATM (10 ATM; freediving to 50 m and recreational scuba) ConfirmedSourceCOROS PACE 4 Pro: 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 Dual Solar Guide names it for hiking.Hiking: Its dual-sided solar charging extends battery life for hikes far from power outlets. Source linkedSource
The COROS PACE 4 Pro Guide names it for running.Running: Heart rate ran right in line with a chest strap on runs, and Effort Pace, a race predictor and Virtual Pacer plan your sessions. Source linkedSource