Update: Updated with specifications.

One fitness company flying under the mobile circles’ radars is Polar. And there’s good reason: all the products it has been putting out compete more along the lines of Garmin and Fitbit. The big ace it has up its sleeve, though, is its optical heart rate sensors.

The Finnish company figures that it can put that technology to good use with its first Android Wear device, the M600.

The watch starts at the sensor, which is just six LEDs.

Apparently just six LEDs have become pretty reliable aids in scanning heart rate. We’ll have to see how it compares to Xiaomi and Fitbit products, but we do like the fact that Polar has three decades of experience behind its sensors.

Other specs include tetherless music playback with 4GB of internal storage, waterproofing to a degree, all-day activity tracking, integrated GPS and a 1.3-inch display. The watch battery is supposed to last about two days with a phone and 10 hours of continuous training. All of the major fitness features like a running program and customizable training plans are tied to the Polar Flow app for Android and iOS.

Oh yeah, there’s also the 4,000 apps on Android Wear. Just so you know.

Polar plans on having the M600 out for global launch “later this year” for a price of $329.95 or €349.95. The watch case and bands will be available in Charcoal Black and Powder White with a switchable Polar Red band to come afterward.

Component Description Screen size 1.3 inches Screen type LCD Resolution 240 x 240 Pixel desnity 260 ppi SoC MediaTek MT2601 Type Dual-core Cortex-A7 Speed 1.2GHz RAM 512MB Storage 4GB Battery 500mAh OS Android Wear Ingress IPX8 (swimming / 10 meters of water) GPS Yes Bluetooth Bluetooth 4.2 Wi-Fi 802.11b/g/n Sensors Accelerometer / ambient light / gyroscope / optical heart rate Dimensions 45 x 36 x 13 mm / 63g

Source: Polar