Amazfit T-Rex Dual Solar vs COROS PACE 4: which should you buy?
Answer worked out Oct. 31, 2026
Amazfit T-Rex Dual Solar price: Checked Oct. 31, 2026
COROS PACE 4 price: Checked Oct. 30, 2026
Most people: get the COROS PACE 4, because it is the better fit for more of what people buy these for.
Get the COROS PACE 4 for running and workouts.
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Amazfit T-Rex Dual Solar vs COROS PACE 4
AMAZFIT
Amazfit T-Rex Dual Solar
$649.99 at Amazon
TALE OF THE TAPEVS
COROS
COROS PACE 4
$249 at COROS
Amazfit T-Rex Dual Solar: 10 ATMWhy we say thisConfirmedAmazfit says this. iDevice checked the exact words on that page.The claimWater resistance10 ATMSee the sourceAmazfit↗ROUND 1Water resistance−5 ATMCOROS PACE 4: 5 ATMAbout this sourceSource linkedYou can read the source. We haven't checked its exact wording.The claimWater resistance10 ATM to 5 ATMRead the sourcecoros.com↗
Amazfit T-Rex Dual Solar: 1.32 in AMOLED, 466 × 466, up to 3,000 nits, sapphire glass; solar charging through the displayWhy we say thisConfirmedAmazfit says this. iDevice checked the exact words on that page.The claimDisplay1.32 in AMOLED, 466 × 466, up to 3,000 nits, sapphire glass; solar charging through the displaySee the sourceAmazfit↗ROUND 2DisplayCOROS PACE 4: 1.2 in always-on AMOLED touchscreen, 390 × 390, mineral glassAbout this sourceSource linkedYou can read the source. We haven't checked its exact wording.The claimDisplay1.32 in AMOLED, 466 × 466, up to 3,000 nits, sapphire glass; solar charging through the display to 1.2 in always-on AMOLED touchscreen, 390 × 390, mineral glassRead the sourcecoros.com↗
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 daysWhy we say thisConfirmedAmazfit says this. iDevice checked the exact words on that page.The claimBatteryTypical 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 daysSee the sourceAmazfit↗ROUND 3BatteryCOROS PACE 4: GPS: 41 hrs (30 hrs always-on); dual-frequency: 31 hrs (24 hrs); daily: 19 days (6 days always-on)About this sourceSource linkedYou can read the source. We haven't checked its exact wording.The claimBatteryTypical 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 days to GPS: 41 hrs (30 hrs always-on); dual-frequency: 31 hrs (24 hrs); daily: 19 days (6 days always-on)Read the sourcecoros.com↗
Amazfit T-Rex Dual Solar: 69g watch body; strap 25.5gWhy we say thisConfirmedAmazfit says this. iDevice checked the exact words on that page.The claimWeight69g watch body; strap 25.5gSee the sourceAmazfit↗ROUND 4WeightCOROS PACE 4: 32g (nylon), 40g (silicone)About this sourceSource linkedYou can read the source. We haven't checked its exact wording.The claimWeight69g watch body; strap 25.5g to 32g (nylon), 40g (silicone)Read the sourcecoros.com↗
Not enough for an overall lead: the Amazfit T-Rex Dual Solar is ahead on water resistance only. It also costs about $401 more today.
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: 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 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
From what each Guide names the product best for. Both Guides also name travel and navigation.
