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Amazfit - T-Rex 3 vs Apple - Watch Series 11 (45mm)

Last updated · How Mars Score works
T-Rex 3AMAZFITRENDER
Probe A
Amazfit
T-Rex 3
79.7/ 100A
Health & Fitness· 32%
Battery & Connectivity92· 30%
Display63· 22%
Design· 16%
Watch Series 11 (45mm)APPLERENDER
Probe B
Apple
Watch Series 11 (45mm)
60.5/ 100C
Health & Fitness· 32%
Battery & Connectivity38· 30%
Display86· 22%
Design· 16%
Quick verdict

Between the T-Rex 3 and Watch Series 11 (45mm), the T-Rex 3 comes out ahead in battery life and water resistance, while the Watch Series 11 (45mm) wins on peak brightness and weight. Overall, the T-Rex 3 scores 79.7 and the Watch Series 11 (45mm) scores 60.5 on our Mars Score.

Buying advice

Which should you buy?

The T-Rex 3 is the clear pick on raw spec strength, leading by 19.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the T-Rex 3 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are battery life, water resistance.

Pick the Watch Series 11 (45mm) if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are peak brightness, weight, display size, among others.

Both ship with comparable spo2, so those specs don't separate the two — focus on the differences below.

Bottom line: the T-Rex 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Amazfit - T-Rex 3 wins

  • Battery life — 1766.67% more. 672 h vs 36 h.
  • Water resistance — 5.00 ATM more. 10 vs 5.

Why Apple - Watch Series 11 (45mm) wins

  • Peak brightness — 50.00% more. 3000 nits vs 2000 nits.
  • Weight — 30.00 g less. 38 vs 68.
  • Display size — 28.00% more. 1.92 " vs 1.5 ".
  • Has ECG.
  • Has Cellular.
Full readout

Spec comparison

Design

SpecAmazfit - T-Rex 3Apple - Watch Series 11 (45mm)
Case size48.5 mmlead45 mm
Weight68 g38 glead
Case materialpolymeraluminum
Water resistance10 ATMlead5 ATM

Display

SpecAmazfit - T-Rex 3Apple - Watch Series 11 (45mm)
Display size1.5 "1.92 "lead
Always-on displaytruetrue
Peak brightness2000 nits3000 nitslead

Health & Fitness

SpecAmazfit - T-Rex 3Apple - Watch Series 11 (45mm)
ECGfalsetruelead
SpO2truetrue
Temperature sensortruetrue
Sleep trackingtruetrue
Blood pressurefalsefalse

Battery & Connectivity

SpecAmazfit - T-Rex 3Apple - Watch Series 11 (45mm)
Battery life672 hlead36 h
GPStruetrue
Cellularfalsetruelead
NFCfalsetruelead
OSZepp OSleadwatchOS
Reader questions

Frequently asked

Which has longer battery life, T-Rex 3 or Watch Series 11 (45mm)?+

T-Rex 3 lasts 672h vs 36h.

Do T-Rex 3 or Watch Series 11 (45mm) support ECG?+

Watch Series 11 (45mm) supports ECG; T-Rex 3 does not.

Which has cellular, T-Rex 3 or Watch Series 11 (45mm)?+

Watch Series 11 (45mm) offers a cellular variant; T-Rex 3 is Wi-Fi only.

Drill down

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