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  3. MARQ Diver (Gen 3) vs Tactix 8 51mm AMOLED Cerakote Coating

Garmin MARQ Diver (Gen 3) vs Garmin Tactix 8 51mm AMOLED Cerakote Coating

What MARQ Diver (Gen 3) does better (1) and where Tactix 8 51mm AMOLED Cerakote Coating wins (6) — every spec side by side.

Garmin MARQ Diver (Gen 3)
Garmin · 2026MARQ Diver (Gen 3)
7.2Score
1 advantage≈ $3,100
vs
Garmin Tactix 8 51mm AMOLED Cerakote Coating
9.2Score
6 advantages≈ $1,600
Higher score
7.5Display7.5
6.2Battery life9.4
8.3Health tracking9.4
8.2Sports & outdoor9.3
9.3Smart features3.2
6.2Build & durability6.3
Dimensions

Size comparison

MARQ Diver (Gen 3)Tactix 8 51mm AMOLED Cerakote Coating
47 × 471551 × 5114.7
MARQ Diver (Gen 3)Tactix 8 51mm AMOLED Cerakote CoatingDifference
Height47 mm51 mm−4 mm
Width47 mm51 mm−4 mm
Thickness15 mm14.7 mm+0.3 mm
Weight95 g94 g+1 g

Drawn to the same scale from the official dimensions (front and side).

Why is MARQ Diver (Gen 3) better than Tactix 8 51mm AMOLED Cerakote Coating?

  1. Storage128 GB vs 32 GB4×

Why is Tactix 8 51mm AMOLED Cerakote Coating better than MARQ Diver (Gen 3)?

  1. GPS battery life32 h vs 84 h2.6×
  2. Battery life (smartwatch mode)18 days vs 29 days+61%
  3. Battery life with always-on display7 days vs 13 days+86%
  4. Battery saver mode24 days vs 41 days+71%
  5. Sport profiles99 vs 102+3%
  6. Thickness15 mm vs 14.7 mm+2%
Specifications

Side by side

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