Street X

Polar Street X is a watch from 2026, sitting in the mid-range band at an indicative $249.

It reads 16 of the 33 signals this comparison tracks. Nothing at all from body composition. Rarer readings it does take: sleep efficiency.

By sensor class: 5 at high accuracy and 4 at consumer grade. That grade is my classification of the hardware, not a lab test. Those readings come from an optical heart rate sensor, a skin temperature sensor, a GPS receiver and an accelerometer.

Its 10 days per charge are the 61st longest of the 80 devices of its kind here that publish a figure. The AMOLED screen can stay always on. Built-in GPS. Rated WR50 / 50m, fine for swimming. It weighs 48 g. Case size 45mm. No subscription is required.

Polar entry-level AMOLED line, March 2026. Same health-signal set as Ignite 3; the added barometer changes altitude in workouts, not a tracked health signal.