Garmin Instinct 3 Tactical vs Polar Grit X2

4 recorded spec differences. Polar Grit X2 is currently the cheaper of the two on Amazon.sa (SAR 2,095 vs SAR 2,047, checked 3 Nov 2026).

Specifications side by side

SpecGarmin Instinct 3 TacticalPolar Grit X2
Phone, battery and calls
Battery life24 days7 days
Built-in GPSYesYes
Size, screen and durability
Case size50 mm—
Display size1.97 in1.28 in
Water resistance10 ATM—
Weight59 g62 g
Display typeAMOLEDAMOLED
Health and payments
ECGNoYes
Contactless payment (NFC)Yes—
Heart-rate trackingYesYes
Blood oxygen (SpO2)YesYes
Other specs
Dimensions—45 x 45 x 12 millimeters cm

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