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  3. Instinct E 45mm vs Street X

Garmin Instinct E 45mm vs Polar Street X

What Instinct E 45mm does better (2) and where Street X wins (5) — every spec side by side.

Garmin Instinct E 45mm
Garmin · 2025Instinct E 45mm
4.6Score
2 advantages≈ $250
vs
Polar Street X
Polar · 2026Street X
5.3Score
5 advantages≈ $270
Higher score
2.6Display6.4
5.0Battery life5.0
4.9Health tracking9.8
4.5Sports & outdoor2.4
5.8Build & durability4.2
Dimensions

Size comparison

Instinct E 45mmStreet X
45 × 4514.245 × 4513.8
Instinct E 45mmStreet XDifference
Height45 mm45 mm=
Width45 mm45 mm=
Thickness14.2 mm13.8 mm+0.4 mm
Weight48 g48 g=

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

Why is Instinct E 45mm better than Street X?

  1. Battery life (smartwatch mode)16 days vs 10 days+60%
  2. Water resistance10 ATM vs 5 ATM2×

Why is Street X better than Instinct E 45mm?

  1. GPS battery life24 h vs 42 h+75%
  2. AMOLED / OLED displayNo · Instinct E 45mm: Yes
  3. Resolution (width)176 px vs 416 px2.4×
  4. Pixel density139 ppi vs 325 ppi2.3×
  5. Thickness14.2 mm vs 13.8 mm+3%
Specifications

Side by side

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