Ultraviolet Index (UVI) on Microsoft Band 2 – FAQ

UV or Ultra Violet Radiations are known to cause numerous problems. Although they can be used to kill germs and treat some skin conditions their risks outweigh the benefits. For instance, they cause skin aging, sunburns and at worst, Skin cancer. A tan on your skin is visible proof that your skin has been damaged by UV rays. It is the response of your skin to overexposure to UV rays. Prolonged effect of this can produce Sunburn, also caused by too many UV rays. Its effects your skin turns red and may become hot and painful or even swell and blister. Wouldn’t it be useful to have a tool capable of alerting you about locations where your skin can be exposed to UV rays. That’s where Microsoft Band 2 find its potent use.

Microsoft Band 2 Ultraviolet Index (UVI)

Microsoft Band 2 has an ultraviolet radiation sensor that has the innate ability to periodically measure the amount of sunlight your skin is absorbing. In the software you can customize alerts to notify you if you’ve been out for too long. The ingenious sensor automatically keeps a track of how much ultraviolet radiation your body is being exposed to during activities like workouts like bicycling, running, or playing a field sport.


The band has a UV Tile that features UVI, or Ultra Violet Index. The index measures intensity of UV radiation from the sun on a scale of one to 11, with one being low risk and 11 being extreme risk. Although UV rays are not visible rays, you can check the current UV level with your Microsoft Band. Here’s how:

If you are out in open and wearing Microsoft Band 2 on your wrist, press the power button.

On the Me Tile, swipe left and tap the UV Tile The UV Tile.

Expose the UV sensor to the sun and press the action button. If your Band’s touchscreen is not facing your wrist, simply rotate your wrist so that the clasp of the Band faces up.

Microsoft Band 2

Once done, the band will be programmed to analyze a sample of the UV level and display a reading (Extreme, Very High, High, Medium, Low, or None). Here’s a chart for your reference.

UV chart

Once you set a limit, your Microsoft Band 2 detects exposure to UV light and alerts you periodically, says Microsoft.

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The author Hemant Saxena is a post-graduate in bio-technology and has an immense interest in following Windows, Office and other technology developments. Quiet by nature, he is an avid Lacrosse player. Creating a System Restore Point first before installing a new software, and being careful about any third-party offers while installing freeware is recommended.