Mio Alpha 2 Heart Rate Sport Watch
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Mio Alpha 2 Heart Rate Sport Watch has a rating of 3.8 stars based on 6 reviews.

By Mio

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The Award Winning Alpha is Even Better

As with the original ALPHA sport watch, Mio ALPHA 2 transmits EKG-accurate heart rate data from your wrist without a chest strap and sends it to popular fitness apps, such as Endomondo, Strava, MapMyRun and more.

Here are some cool new features we’ve added to Mio ALPHA 2.

  • Built-in accelerometer tracks distance, pace, speed, and calories.

  • Large memory holds 25 hours of workout data that can be synced later

  • Countdown, count-up, and repeat timers

  • Customizable display with bright backlight

  • Long battery life: 20-24 hours with heart rate monitoring turned on

Make every workout count. Train with Heart.

Heart rate training is proven to help you train more efficiently and effectively, so you can get the most out of your workout in the least amount of time. Mio ALPHA 2 gives you real-time, continuous feedback on how your body is responding to exercise by displaying your heart rate directly on the LCD screen. Configure your heart rate zones and receive audible and LED color alerts to keep you in your target zone.

Works With Your Favorite Apps

Mio ALPHA 2 transmits your heart rate data via Bluetooth (4.0) to Mio GO and hundreds of other compatible iPhone and Android apps, so you can track your workout your way. The Mio GO app can be used to customize heart rate zones, and select display screens.

Mio Optical Heart Rate Technology Keeps the Beat

The electro-optical cell in our heart rate sensor "senses" the volume of blood under your skin. From there, sophisticated algorithms are applied so that your heart’s true rhythm can be detected.

Just as Accurate as a Heart Rate Chest Strap

With a 0.99 correlation to EKG in laboratory testing, Mio optical heart rate technology matches or outperforms the top heart rate monitor chest straps — even while running and cycling at high performance speeds.

Comfort. Form. Function

Mio ALPHA 2 delivers maximum performance in ultimate comfort. Its soft, durable silicone strap ensures a snug and comfortable fit – and with no need for a chest strap, you’ll be more comfortable than ever.


  • Black and Yellow models fit 5.3 inches to 7.5 inches
  • Pink model fits 5.2 inches to 6.5 inches
  • Material : Soft silicone

  • Display : LED

  • Battery : Rechargeable li-poly battery with USB charger

  • Battery Life : Approximately 20-24 hours in workout mode / Up to 3 months without continuous heart rate monitoring on

  • Memory : Up to 25 hours of workout data that can be synced later

  • Water Resistant : 30m (3 ATM)

  • Watch Function

  • Dimensions : 252 x 43 x 18 mm 

  • Weight : 53 g

  • Sensors : Optical heart rate / 3-axis accelerometer

  • Sync method : Bluetooth Smart (4.0)

  • Measures : EKG-accurate heart rate, Calories, distance, and pace while in workout mode

  • Timers : Countdown, chronograph, and repeat intervals -- configurable within the Mio GO app

  • Backlight

  • iPhone 4s/5/5c/5s/6/6 plus or greater

  • iPod touch 5 or greater

  • iPad 3/4/air/mini or greater

  • Samsung Galaxy s 4/5

  • Samsung Note 3

  • Google Nexus 4/5

  • Android 4.3 (Jelly Bean) and higher with Bluetooth Smart (4.0)

HRM USA is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase any product sold by an Authorized Dealer of that specific product offered at lower price. Proof of lower price is required.

Here's how to qualify for Price Match:

  • If you find a qualifying lower price online, call 1-800-403-8285 or 215-259-2700 Between 9am - 6pm EST and one of our employees will assist you with the price match request.
  • On qualifying products, HRM USA will then verify the current price to complete the price match.

Some exclusions apply:

  • Services such as custom imprinting, extended warranties, ect. 
  • Items must be in advertised as New Condition, HRM USA will not price match against Used, Newly Overhauled, Manufacturer Refurbished, or Open Box Returns
  • Out of Stock or Preorder items do not qualify
  • Products shipped from or sold by third-party sellers (Marketplace Sellers) on Website
  • Price Match will take into consideration final value costs, including shipping and taxes.