Amazfit T-Rex Ultra 2 vs Coros Apex 4

Amazfit T-Rex Ultra 2

$549.99

Coros Apex 4

€449

Quick verdict

Amazfit T-Rex Ultra 2

$549.99

The better pick if you want:

A higher overall score (83 vs 75)
Longer battery (30 vs 24 days)

Coros Apex 4

€449

The better pick if you want:

To spend $70.99 less

Spec profile

Each axis ranks against the 33 products in Watch on the site: the further out, the more it stands out in that spec (lighter, cheaper…).

Center: lowest in the category · Edge: highest

Amazfit T-Rex Ultra 2· leads in 3

Smartwatch batteryFeaturesWater resistance

Coros Apex 4· leads in 2

LightnessAffordability

Tied

GPS battery

GPS battery
50 hTop 27%
53 hTop 23%
Smartwatch battery
30 daysTop 14%
24 daysTop 33%
Features
12Top 38%
11Top 47%
Water resistance
10 ATMTop 24%
5 ATM
Lightness
89 g
64 g
Affordability
$550
$479Top 44%

Technical Specifications

Compare features between Amazfit T-Rex Ultra 2 vs Coros Apex 4

Best value in this comparisonOnly differences (15)

Essentials

$549.99

€449

February 2026

October 2025

Battery

Up to 30 days

Up to 24 days (46 mm) / 15 days (42 mm)

—

Up to 53 hours (46 mm) / 34 hours (42 mm)

Display

—

3rd-generation Memory-in-Pixel (MIP) touchscreen

—

1.3" (46 mm) / 1.2" (42 mm)

—

260 x 260 (46 mm) / 240 x 240 pixels (42 mm)

Yes

Build & durability

—

Fiber-reinforced polymer

—

Grade 5 titanium alloy

—

Sapphire glass

10 ATM

5 ATM

Features

—

32 GB

Multi-band GNSS, Offline maps, Turn-by-turn directions, Route & back-to-start navigation, Barometric altimeter, Compass, Blood oxygen (SpO2), AMOLED display, Touchscreen, LED flashlight, Microphone / voice, Race predictor & pacing

Multi-band GNSS, Offline maps, Turn-by-turn directions, Route & back-to-start navigation, Barometric altimeter, Compass, Blood oxygen (SpO2), ECG, Touchscreen, LED flashlight, Microphone / voice

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Video Reviews

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Amazfit T-Rex Ultra 2

Coros Apex 4

Visual Comparison

See the differences between Amazfit T-Rex Ultra 2 and Coros Apex 4 in a side-by-side slider comparison.

Comparison Questions

Answers based on product data and key differences.

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Frequently Asked Questions

Which offers better value: Amazfit T-Rex Ultra 2 vs Coros Apex 4?

For value comparison: The Amazfit T-Rex Ultra 2 ($549.99) provides premium features compared to the Coros Apex 4 ($479). Consider your budget and the specific features that matter most for your trail running setup.