Who is the Amazfit - T-Rex 3 for?
Budget-tier smartwatche. The 62.7 score sits in C-tier (58–67) — the formula flags meaningful weaknesses against premium peers.
Reasonable if cost is the deciding factor and the spec weaknesses don’t matter for your use. Check the spec table carefully before buying.
Mars Score is computed from 17 measured specs against the transparent formula for the smartwatches category. No editorial picks, no paid placement.
Amazfit - T-Rex 3: advantages & disadvantages
Measured against every smartwatches we track, here is where the Amazfit - T-Rex 3 pulls ahead — and where it gives ground.
- ▲Includes Always-on display — a feature not every smartwatches offers.
- ▲Includes SpO2 — a feature not every smartwatches offers.
- ▲Includes GPS — a feature not every smartwatches offers.
- ▲Battery life: 672 h — among the best smartwatches we track.
- ▼No ECG — a feature most stronger smartwatches include.
- ▼No Cellular — a feature most stronger smartwatches include.
- ▼Weight: 68 g — below the typical smartwatches.
Pros are specs scoring ≥75% of the category normalization range. Cons are ≤35%. Derived from the Mars Score formula — no hand-curated lists.
At a glance
- Display size
- 1.5"
- Case size
- 48.5mm
- Battery life
- 672h
- OS
- Zepp OS
All specifications
Design
- Case size
- 48.5 mm
- Weight
- 68 g
- Case material
- polymer
- Water resistance?
- 10 ATM
Display
- Display size
- 1.5 "
- Always-on display
- true
- Peak brightness?
- 2000 nits
Health & Fitness
- ECG
- false
- SpO2
- true
- Temperature sensor
- true
- Sleep tracking
- true
- Blood pressure
- false
Battery & Connectivity
- Battery life?
- 672 h
- GPS
- true
- Cellular
- false
- NFC
- false
- OS
- Zepp OS
Latest from the lab
All lab reports →Popular comparisons featuring the Amazfit - T-Rex 3
The 12 closest matchups in the Smartwatches category, sorted by Mars Score proximity — the fights most worth your time.
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How Amazfit - T-Rex 3 fits the Smartwatches field
Amazfit - T-Rex 3 is listed in the Smartwatches catalog with a Mars Score of 62.7. It currently ranks 21 of 24 products in this category by Mars Score.This page is most useful when you match the product's strongest measurable specifications to your own workload instead of treating one number as a universal recommendation.
Key specifications to check
- Display size
- 1.5 "
- Case size
- 48.5 mm
- Battery life
- 672 h
- OS
- Zepp OS
Values are shown exactly as stored in the current catalog. A dash means the value is not available; it is not a zero and is not treated as a win or loss.
Who should consider it?
Start with the priorities represented by display size, case size, battery life. Buyers who value those dimensions should compare this product against the closest same-category alternatives below, then verify regional pricing, warranty, and configuration before purchase.
Closest alternatives
Frequently asked
What is the Mars Score for Amazfit - T-Rex 3?+
Amazfit - T-Rex 3 scores 62.7 on the transparent Mars Score formula for smartwatches, computed from its published specs against the category's weighted normalization.
What category does Amazfit - T-Rex 3 belong to?+
Amazfit - T-Rex 3 is a Amazfit smartwatche catalogued in the Smartwatches category.
When was Amazfit - T-Rex 3 released?+
Amazfit - T-Rex 3 was released on 2024-10-15.
What is the display size of Amazfit - T-Rex 3?+
Amazfit - T-Rex 3 has a display size of 1.5 ".
What is the case size of Amazfit - T-Rex 3?+
Amazfit - T-Rex 3 has a case size of 48.5 mm.
What is the battery life of Amazfit - T-Rex 3?+
Amazfit - T-Rex 3 has a battery life of 672 h.