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Mio ALPHA 2 Heart Rate Watch + Activity Tracker
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- Get accurate wrist-based heart rate during exercise.
- Track workouts plus all day activity, including steps, calories and distance.
- Store up to 25 hours of workout data.
- Sync wirelessly via Bluetooth Smart (4.0) to popular fitness apps.
- Water resistant up to 30m (3 ATM / 100 ft.).
- Compatible with Mio PAI App (Personal Activity Intelligence).
- Have questions about your Mio? Contact Mio Global at 1-877-770-1116 (Mon-Fri: 9am to 5pm PST) and kindly refer to the user manual for instructions and troubleshooting.
- To add all day activity tracking, easily update your firmware via Mio GO app.
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From the manufacturer
Personal Activity Intelligence
PAI (Personal Activity Intelligence) is a revolutionary new metric that measures your body’s response to physical activity, providing guidance on how much activity is required to maintain optimal health. pai can predict your overall wellness and longevity by simply interpreting your heart rate data and personal profile. Put simply, pai helps you live healthier for longer.
The Mio pai app is available for iOS and Android and works exclusively with all Mio wearable products.
Heart Rate Watch + Activity Tracker
Engineered for Athletes Who Demand The Best
Mio Alpha 2 boasts all the features of the original award-winning Mio Alpha plus more! Mio Alpha 2 heart rate sport watch provides EKG-accurate heart rate data at performance speeds -- without a chest strap -- along with distance, calories, and pace. Mio Alpha 2 connects to smart devices via Bluetooth 4.0 to provide athletes with all the training and tracking features of their favorite fitness apps. The best in heart rate technology and cool new features are packed into this comfortable, easy to use sport watch.
- Precision heart rate taken at wrist, no chest strap needed
- Configurable heart rate zones with colored LED to indicate zones
- Tracks daily activity + workouts, including steps, calories, distance & pace
- Bluetooth Smart connectivity to iPhone and Android fitness apps
- Memory holds up to 25 hours of workout data
- Works with Mio pai App
- Water resistant to 30m
- Fits wrist sizes 5.3” – 7.5”/ 135 – 190 mm
All the Training Data You Need
Your heart rate provides insight into how hard you’re pushing yourself and how well you’re recovering.
Tracks Steps, Distance, and Speed
Display daily activity tracking + pace, speed, and distance data based on the Alpha 2 internal accelerometer.
Alpha 2 uses a sophisticated algorithm based on height, weight, and workout intensity to determine your calorie burn.
Connect Your Fitness Experience
With built-in Bluetooth Smart and ANT+ connectivity, Mio Fuse frees you to connect and share your fitness data in real-time with dozens of popular iPhone and Android fitness apps, GPS watches, and bike computers.
Why PAI is the Best Activity Metric!
Mio is a pioneer in Heart Rate Technology, and we are now introducing a revolutionary new metric and app that makes sense of your heart rate data. pai is a free app and exclusive to Mio wearables.
It’s Meaningful: Other metrics such as steps provide limited insights into physical activity, as not all steps are created equal, and not all exercise involves steps. The most accurate way to assess the health benefits from activity is to analyze an individual’s heart rate data.
It’s Simple: The goal is to maintain a minimum score of 100 pai for maximum health benefits. pai makes sense of heart rate data.
It’s Personal: pai is calculated based on age, gender, resting heart rate and maximum heart rate. It is a personalized experience that makes the 100 pai goal and all pai calculations customized and accurate for each individual.
It’s Scientific: The Mio pai algorithm is founded upon data collected from the Hunt Health Study over a 20-year period involving 60,000 participants conducted by the Nobel Prize-winning Faculty of Medicine at the Norwegian University of Science and Technology.
In The Box
- Mio Alpha 2 heart rate monitor watch.
- USB charging dock with magnetic alignment.
- Mio Alpha 2 Quick Start Guide.
- Mio Alpha 2 Warranty Information.
Visit our website for up-to-date information on device compatibility.
Connectivity: Bluetooth Smart (4.0).
Sensors: Optical heart rate and internal accelerometer.
Battery: Rechargeable Li-Poly.
Battery Life: 20 to 24 hours of optical heart rate time.
Offline Data Storage: Up to 25 hours of workout data.
Water Resistance: 3 ATM (30m).
Alpha 2 fits wrists 5.3 inch – 7.5 inch / 135 – 190 millimeter.
Why Train with Heart?
Heart rate training is the most effective way to track your fitness and improve your performance. That's why Mio develops innovative, easy-to-use products that make heart rate monitoring comfortable and accessible for all athletes.
- Understand your physiological response to exercise with real-time, continuous feedback.
- Prevent injury caused by overtraining and improper pacing.
- Improve workout efficiency and effectiveness by training in the appropriate heart rate zone.
- Develop your body’s ability to use fat as fuel.
- Accurately track your progress.
Equip yourself with the performance data you need to meet your training demands and maximize your workout efficiency. Mio ALPHA 2 places the industry’s most accurate wrist-based heart rate monitor at arm’s length, and helps you track your distance, calories, pace, and speed at a glance.
Style Name: Black, Large
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Top customer reviews
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If you don't care about vibrating then it's your best accurate device.
There are plenty of devices out there that can be used to track your heart rate outside of the water, but this one of just a few that can track your heat rate in the water, under the right conditions, so it's pretty unique from that standpoint.
I have worn it for a week at a time without needing a charge. I do a daily 1 hour exercise with the constant readout and the charge lasts a full 7 days plus.
It was easy to program, I was able to ask the physiologist at the doctors office what my max suggested heart rate was for my recovery was. So far I have had to change programing twice because of massive weight loss and it was simple to change.
Bright LED light for screen does not stay on very long but makes screen readable in the dark.
Color changing LED flashes on the wrist while in constant monitoring mode letting you know when you have reached min working rate, and changes color as you approach you max rate so easy to see at a glance how hard you are working.. In my case very good because for recovery I am not supposed to exceed a certain rate.
I have not yet synced it with a device, I understand it has many other functions and helpful crap available if you do so..
It functions perfectly without needing to sync it so I like and would suggest this wrist monitor, especially since you dont need a chest strap and its accuracy seems excellent..
The Mio Alpha 2 gave me accurate real time display during my lifting. I'm most happy with that.
1> Buggy app. An hour into the workout, I switched out of the app to do something, came back, and lost an hours of my workout and had to start a new workout.
2> Strap size. I'm no he man muscle guy, and I'm right at the end of the strap. In fact, at the last holes, the hole spacing is wrong between the 2 pin clasp and strap lock down, and the 2 pins of the clasp stick out and snag everything. SO I wear one notch tighter, and no issue. The strap is so good, I dont notice it.
So far, for what I needed (real time HR) and continuous display, I'm most happy with it.
I'm on my second unit now. First one BT went out and was replaced under warranty. Second one now is randomly losing signal, and MIO on android shows 0 HR, while wrist unit shows 100.
Also seems to loose HR on certain arm exercises, and my displayed HR is dropped by like 50%,
software pretty sad too. a few more days guys...
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