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Technical specification

Grit X

Battery type: 346 mAh Li-pol rechargeable battery
Operating time:

Battery life up to 40 h in training mode (GPS and wrist-based heart rate) or up to 7 days in watch mode with continuous heart rate tracking. Three power save modes available. The multiple power save options bring you even up to 100 hours.

Operating temperature: -10 °C to +50 °C / 14 °F to 122 °F
Watch materials:

Black

Device:  CORNING GORILLA GLASS, PA12+30GF, TPE, STAINLESS STEEL, PMMA

Wristband: SILICONE

Buckle: Stainless steel

White

Device: CORNING GORILLA GLASS, PA12+30GF, TPE, STAINLESS STEEL, PMMA

Wristband: SILICONE

Buckle: Stainless steel

Green

Device: CORNING GORILLA GLASS, PA12+30GF, TPE, STAINLESS STEEL, PMMA

Wristband: SILICONE

Buckle: Stainless steel

Accessory wristband materials:

Woven wristbands

Red Paracord, Blue Paracord, Black Tundra, Green tundra: Recycled PET yarn, polyester and elastane (latex-free)

Leather wristbands

Brown:Genuine vegetable-tanned leather, polyester and elastane (latex-free)

Cable materials: BRASS, PA66+PA6, PC, TPE, CARBON STEEL, NYLON
Watch accuracy: Better than ± 0.5 seconds / day at 25 °C / 77 °F temperature
GNSS accuracy: Distance ±2%, speed ±2 km/h
Altitude resolution: 1 m
Ascent/Descent resolution: 5 m
Maximum altitude: 9000 m / 29525 ft
Sample rate: 1 s
Heart rate measuring range: 15-240 bpm
Current speed display range:

0-399 km/h 247.9 mph

(0-36 km/h or 0-22.5 mph (when measuring speed with Polar stride sensor)

Water resistance: WR100, up to 100 m
Memory capacity: Up to 90 hours of training with GPS and heart rate depending on your language settings.
Resolution 240 x 240
Maximum power 5 mW
Frequency 2.402 - 2.480 GHz

Uses wireless Bluetooth® technology.

The Polar Precision Prime optical heart rate sensor fusion technology uses a very small, safe amount of electric current on the skin to measure the contact of the device to your wrist to enhance accuracy.

Polar FlowSync Software

To use FlowSync software you need a computer with Microsoft Windows or Mac operating system with an internet connection and a free USB port.

Check the latest compatibility information from support.polar.com.

Polar Flow mobile application compatibility

Check the latest compatibility information from support.polar.com.

Water resistance of Polar products

Most Polar products can be worn when swimming. They are not, however, diving instruments. To maintain water resistance, do not press the buttons of the device under water.

In the watch industry, water resistance is generally indicated as meters, which means the static water pressure of that depth. Polar uses this same indication system. Water resistance of Polar products is tested according to International Standard ISO 22810 or IEC60529. Every Polar device that has water resistance indication is tested before the delivery to stand water pressure.

Polar products are divided into four different categories according to their water resistance. Check the back of your Polar product for the water resistance category, and compare it to the chart below. Please note that these definitions do not necessarily apply to products of other manufacturers.

When performing any underwater activity, the dynamic pressure generated by moving in water is greater than the static pressure. This means that moving the product under water subjects it to a greater pressure than if the product were stationary.

Marking on the back of the product Wash splashes,
sweat, raindrops etc.
Bathing and swimming Skin diving with snorkel
(no air tanks)
SCUBA diving
(with air tanks)
Water resistant characteristics
Water resistant IPX7 OK - - - Do not wash with a pressure washer.
Protected against splashes, raindrops etc.
Reference standard: IEC60529.
Water resistant IPX8 OK OK - - Minimum for bathing and swimming.
Reference standard: IEC60529.
Water resistant
Water resistant 20/30/50 meters
Suitable for swimming
OK OK - - Minimum for bathing and swimming.
Reference standard: ISO22810.
Water resistant 100 meters OK OK OK - For frequent use in water but not SCUBA diving.
Reference standard: ISO22810.