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Mio ALPHA 2 Heart Rate Monitor

PUNCH
Punch
$149.00 - $199.95
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This item contains hazardous or flammable materials and is restricted to surface shipping only. Cannot be sent to Alaska, Hawaii, APO, FPO or international addresses.

  • Strapless EKG-accurate heart rate monitor with internal accelerometer keeps critical stats like calorie burn, pace, speed and distance just a glance away
  • 2-way Bluetooth® transmission connects with popular exercise apps and equipment, returning data to the watch so you can accumulate data wherever you work out
  • Customize target heart rate zones with the Mio GO app; 6-color LED displays your current zone during workouts
  • Stores up to 24 hrs. of workout data so you can catch up with friends after your workout and then sync data when you get home
  • Features 12 or 24-hr. clock, 2 different timers, chronograph and easy-to-activate backlight
  • Includes a soft silicone wristband with a secure snap latch, USB charging dock with magnetic alignment and a rechargeable lithium battery
  • Battery life in heart rate mode lasts 20 - 24 hrs.
  • Water-resistant to 30m

Imported.

    Monitor sizing
  • Color black fits wrists 5.3 - 7.5 in.
  • Color punch fits wrists 5.2 - 6.5 in.

View all Mio Heart Rate Monitors

REI membership

Best use Multisport
Tracks calories burned Yes
HRM included/integrated Yes
Heart rate sensor type Optical, Strapless
Average heart rate Yes
Heart rate target zone(s) Yes
Water-resistant depth 30 meters
Stopwatch Yes
Time display Yes
Illumination Backlight
Average battery life 20 hours
Average rating

3.9

(36 reviews)

What do you think of this product?

Share your thoughts with the REI community.

  • Great product.
    Looked at many watch/Heart rate monitors. By far this is the best.
    Originally posted on mioglobal.com
  • Some good, some bad.
    Had this product for nearly a year. On the whole it works well with my Garmin or with phone apps - except the Mio Global app, which is pretty awful (and won't even let me register my product...
    Read More
    Had this product for nearly a year. On the whole it works well with my Garmin or with phone apps - except the Mio Global app, which is pretty awful (and won't even let me register my product so I can't get firmware updates!). The main problem is occasional short drops in heart rate to under 80, then after a minute or so a jump back to 140+ where it should be. Its more comfortable than chest straps, if you are willing to accept these short periods of poor accuracy.
    Originally posted on mioglobal.com
  • Watch band to small
    Would like to try watch, but the watch band goes to 7.5, I have a 8" wrist
    Originally posted on mioglobal.com
  • Large numbers that are easy to read
    I got mine as a present, it is comfortable and dead on accurate.
    Originally posted on mioglobal.com
  • Excellent device - needs better app and data trans
    I have used this device for a few months now. I run with a Garmin Forerunner that needs a chest strap and I just don't like those. This device is very easy to use and is accurate. The displa...
    Read More
    I have used this device for a few months now. I run with a Garmin Forerunner that needs a chest strap and I just don't like those. This device is very easy to use and is accurate. The display is bright enough so that older eyes can easily see it which is starting to be tough with the Garmin. But, as others have said, the app and data transfer need to be improved. The app does a decent overall job of a few data points but some of us would like to delve into the details and therefore need to be able to download the data into a CSV file - like the Garmin - or possibly an online account - like runkeeper. Another strange behaviour is that if you start an exercise on the device, the app does not keep up. But if you start on the app, then the device is just transmitting HR. I think it should be continuous syncing. But the major reason I bought this is for an accurate HR and it does that very well.
    Originally posted on mioglobal.com
  • Best for heart rate training, great CS
    Just brought that a month a go, very the heart rate is quite accurate, much better then other heart rate wristband or smart watch. Although my watch's battery has some problem, but Mio's CS ...
    Read More
    Just brought that a month a go, very the heart rate is quite accurate, much better then other heart rate wristband or smart watch. Although my watch's battery has some problem, but Mio's CS replaced a new one for me very quickly. Nice!
    Originally posted on mioglobal.com
  • Perfect device, poor app
    I bought Apha 2 recently. I am very pleased with accurate measurements, but app is lacking key things like: - percentage or time spent in heart rate zones during workout ( there is just mos...
    Read More
    I bought Apha 2 recently. I am very pleased with accurate measurements, but app is lacking key things like: - percentage or time spent in heart rate zones during workout ( there is just most frequent zone, and time for it) - data needed for this are available, it is just thing of showing it in app -daily/weekly/monthly graphic view of activity / avg heart rate/ avg speed for the activity ( to compare it, and see how you are becoming better)
    Originally posted on mioglobal.com
  • Very good tool for heart monitoring
    I too am a heart attack survivor. Bought Alpha 2 after enrolling in local Cardio Rehab program based on Internet reviews extolling its accuracy. Took me a while to get used to it (Mio, your ...
    Read More
    I too am a heart attack survivor. Bought Alpha 2 after enrolling in local Cardio Rehab program based on Internet reviews extolling its accuracy. Took me a while to get used to it (Mio, your User Manual needs improving) but after several months I have gotten used to it. At first didn't like the app on my iPhone 5, but that too has improved in my estimation. One concern: the Bluetooth connection keeps failing ever since the latest update of IOS. Easy enough to get back, but irritating nonetheless. Oh, and yes, the backlight is flaky. Overall tho, an excellent product.
    Originally posted on mioglobal.com
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