Amazfit T-Rex Ultra 2 vs Polar Grit X2

Amazfit T-Rex Ultra 2

$549.99

Polar Grit X2

$479.90

Quick verdict

Amazfit T-Rex Ultra 2

$549.99

The better pick if you want:

A higher overall score (83 vs 50)
Longer battery (30 vs 7 days)

Polar Grit X2

$479.90

The better pick if you want:

To spend $70.09 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 4

GPS batterySmartwatch batteryFeaturesWater resistance

Polar Grit X2· leads in 2

LightnessAffordability

GPS battery
50 hTop 27%
30 h
Smartwatch battery
30 daysTop 14%
7 days
Features
12Top 38%
9
Water resistance
10 ATMTop 24%
5 ATM
Lightness
89 g
62 g
Affordability
$550
$480Top 47%

Technical Specifications

Compare features between Amazfit T-Rex Ultra 2 vs Polar Grit X2

Best value in this comparisonOnly differences (14)

Essentials

$549.99

$479.90

February 2026

June 2025

Battery

Up to 30 days

Up to 7 days

Display

—

AMOLED

—

1.28 inch

—

416 x 416 pixels

Yes

Build & durability

—

Polymer

—

Stainless steel

—

Sapphire crystal

10 ATM

5 ATM (WR50)

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, Route & back-to-start navigation, Barometric altimeter, Compass, Blood oxygen (SpO2), ECG, AMOLED display, Touchscreen

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Video Reviews

Watch real-world YouTube reviews from content creators and the Trail Running community.

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Amazfit T-Rex Ultra 2

Polar Grit X2

Visual Comparison

See the differences between Amazfit T-Rex Ultra 2 and Polar Grit X2 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 Polar Grit X2?

For value comparison: The Amazfit T-Rex Ultra 2 ($549.99) provides premium features compared to the Polar Grit X2 ($479.9). Consider your budget and the specific features that matter most for your trail running setup.