- Item Weight: 5.6 ounces
- Shipping Weight: 5.6 ounces (View shipping rates and policies)
- ASIN: B01NAPENNB
- Item model number: 60P-BLK-LRG-Parent
- Average Customer Review: 85 customer reviews
- Amazon Best Sellers Rank: #100,281 in Sports & Outdoors (See Top 100 in Sports & Outdoors) Product Warranty: For warranty information about this product, please click here
Mio SLICE Heart Rate + Activity Tracker
|Price:||$64.98 - $225.68|
|Sale:||Lower price available on select options|
- PAI is Personal Activity Intelligence, a scientifically-validated metric showing how much activity you need to do to stay healthy.
- Get heart rate intensity feedback with PAI technology, tracking all activities even those that don't involve steps.
- Accurate continuous heart rate tracking, 24/7. Also tracks steps, distance, calories burned and sleep as well as displays smartphone notifications.
- Compatible with select smartphones: iOS 9.0 and above (iPhone 5S or newer) and Android 5.0 and above (Google Nexus 5, 5x, 6, 6p; Samsung Galaxy S5, S6, S7, Note 5).
- For any questions or product support, please contact Mio Customer Service at 1-877-770-1116: Mon-Fri, 9am to 5pm PST.
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From the manufacturer
Move With Meaning
Mio SLICE is one of the first wearable to capture your heart rate data and translate it into PAI, Personal Activity Intelligence. The system gives you a single, personal score, showing how much activity you need to stay healthy.
SLICE also includes sleep tracking, calories burned, smartphone notifications and more—all in a stylish water-resistant wrist band operated by one simple button.
What Is PAI?
Maintain a score of 100 PAI or higher for maximum health benefits. No matter the activity or exercise, PAI is the only number that matters.
PAI is calculated based on your heart rate data and personal profile over a 7-day rolling period, making it unique to you. Work out more on some days and less on others.
PAI is founded upon data from the HUNT Study—one of the world’s largest health studies conducted over a 25-year period with more than 45,000 participants.
PAI is based on heart rate, one of the most accurate and meaningful way to measure your body’s response to physical activity. PAI counts all physical activity that increases your heart beat.
How PAI Works
Mio SLICE syncs with your PAI app on iPhone and Android so you get the latest details of your daily and weekly PAI scores.
Get the full picture of how your heart performs in each heart rate zone and see where you earn the most PAI points.
See your steps, distance, calories burned, and sleep quality directly on your SLICE and your iPhone or Android.
Mio SLICE is the first wearable to translate your heart rate data into your PAI score, the most meaningful way to track all your activity, motivating you to stay healthy. Personal Activity Intelligence (PAI) is a scientifically-validated new metric that tracks your body's response to all your physical activity, and gives you actionable feedback proven to help you optimize your health. SLICE also tracks sleep, steps, calories burned, smartphone notifications and more—all from a stylish and comfortable wristband operated by one simple, button.
Compatibility: Requires the Mio PAI 2 application for configuration. Free download in the App Store and Google Play Store.
iOS 9.0 and above: iPhone 7, 7Plus, 6s, 6s Plus, 6, 6 Plus, SE and 5S. Android 5.0 and above: Google Nexus 5, 5x, 6, 6p; Samsung Galaxy S5, S6, S7, Note 5.
Water Resistant: 30m/100 feet (3 ATM)
Sizing: Small fits wrists 5.5” to 6.75” / 13.97 cm to 17.15 cm in circumference Large fits wrists 6.75” to 8.25” / 17.15 cm to 20.96 cm in circumference
Dimensions: (height, width, length)
Small: 0.53” x 0.82” x 8.46” 1.35 cm x 2.08 cm x 21.5 cm
Large: 0.53” x 0.82” x 9.45” 1.35 cm x 2.08 cm x 24 cm
Weight: Small: 0.99 ounces / 28 g Large: 1.02 ounces / 29 g
Material: TPU strap, anodized aluminum main body and buckle
Battery Type: Rechargeable li-poly battery with USB charger
Battery Life: Up to 5 days (depending on use and settings)
Sensors & Components: Optical heart rate tracker 3-axis accelerometer Vibration motor
Connectivity: Bluetooth Low Energy 4.0+ ANT+
Memory: Saves 7 days of activity data.
Measures: PAI, heart rate, resting heart rate, sleep, calories burned, steps, and distance
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Top customer reviews
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- why is the button so huge? You'd think from the shape that it is a rocker switch, but it isn't. Because it's so huge, if your press is a little offset from the center, it will click when pressed, but nothing happens. That big ridge on the button that seems to be saying "press me here" is a decoy. If you press there, nothing happens. It's really annoying to figure that out in the first minute or two of use during pairing and firmware update.
- the firmware update is glitchy. The first unit I had bricked itself during firmware update. The second one failed during the first attempt, but succeeded on the second try. Yes, firmware update is hard. But it needs to be reliable if you're going to let devices out with old firmware so that firmware update is 2nd thing the user has to do when setting up the device.
- the app is so minimally featured that it's more like a proof of concept than an actual fitness application. It collects the data in a highly compressed bar chart which would be cool as an overview - but that's it. You get your magic PAI score, but no real view of the data. It's not clear whether the data stays entirely on the phone. During sync with the device it says, "syncing with server", but you have no visibility into that. It might be cool from a privacy perspective if the data stayed only on the phone, but there's no way I can find to access the data. You can't export it to the Apple Health Kit, or upload it anywhere (e.g., the way Garmin devices work with the Garmin Connect web site). As far as I can tell, your data is dead-ended in this app, and there is no way to get it out, or back it up.
- the PAI score seems like a really good idea. Steps are superficial as a metric, and those other trackers can't even count that accurately. But the PAI score seems somewhat arbitrary. For example, I get 25 points for walking around in the grocery store for 30 minutes. 50 points for inline speed skating 18 miles in a little over an hour. I understand the points are just an arbitrary number. It's all just for motivation anyway. But the points need to make just a little bit of sense, otherwise it's not motivating. When the points don't make sense, you feel like you're being cheated out of something. Maybe the points will level out over time with more use.
- Sleep tracking is pretty much non-existent. It gives you a highly compressed chart similar to the one for workouts, with light sleep, deep sleep, and awake totals. It seems like the HR display uses your "resting heart rate" as the minimum value, and won't show anything below that. That's a bad idea, because nighttime heart rate often goes well below that. There's a well known dip upon going to sleep, which is part of the HR you want to see for sleep tracking, but the chart cuts that off. This is just plain dumb. The chart floor should be the lowest data value, not "resting heart rate". [update: It seems like the device keeps updating resting heart rate over time to the lowest value it has observed (though it's hard to tell, because you can't readily confirm any minimum value). This is a bad idea because "resting heart rate" normally refers to your awake daytime minimum. The nighttime minimum can be considerably lower than that, but you don't want to treat that as "resting heart rate" for exercise purposes.]
- I'm getting about one day of use out of it between charges. I've subsequently turned off all vibration and notifications, and will try never activating the display to see if I can get two days out of it. [update: after turning all the buzzing and alerting off, and not fiddling with it unnecessarily, I burned 20% of the charge over a day, so you should be able to get 4-5 days of use with minimal use. Probably 1 day if you turn all the alerting features on.]
- The physical unit seems solid and comfortable. After 3 months use, the screen is still unscratched, although I've accidentally bonked it a few times. It's pretty comfortable, pretty much like it's not even there. The strap and the unit itself seem to be holding up perfectly. I get it wet almost daily, and no issues so far.
One Month Update: after a month of use, I'm still running PAI scores around 230-280. Supposedly, it adapts to your level of fitness, so that 100 becomes the right number for you, and it becomes harder to rack up big PAI scores. So far, I'm not seeing that. Wearing it has become fairly ordinary. I hardly notice it anymore.
Three Month Update: about once every 2-3 weeks, the phone app hangs on the purple "Syncing with Server" screen, and then crashes. After that happens, it won't do anything except show that screen, then crash. The only way I've found to get around this is to delete the app and re-install it. Then you lose at least some of your data. This is fairly annoying. Hopefully it will be fixed soon.
In Summary: If you want all-day HR tracking, this seems to be the way to go. But there is a lot of room for improvement. Hopefully there will be future updates to the PAI app that let the data out of jail, and make it more generally useful.
There are a few things I'm not so thrilled with: The screen is not visible in bright daylight, so I can't use it to adjust my workout based on the elapsed time and heart rate the watch shows me. There's no notification of low battery from the app, and on the watch there's a 1-time image of a low battery that shows up when you activate the display, but it blips past so quickly that it's easy to miss. The numbers it shows for pai earned are not always consistent, even ignoring whether it's synced. First thing in the morning it might tell me I have 104 pai to start the day with, then later it will say I have 96 pai, then it syncs and I think the numbers are resolved but I would feel more confident if it would show me more consistent numbers.
However, those negatives are pretty minor compared with the fact that this monitor helps me get out the door for my workout and to walk the dog, but it doesn't make me feel like a failure if I miss a day. I find it's not hard to stay above 100 pai, but I have to pay attention to it and do some level of physical exercise on most days. I look forward to future upgrades that solve the problems I noted above, but as it is I would definitely recommend this monitor.
Yes - The only way for the watch to credit me, is if I'll click on the "start working" mode, which then brings up the question - so how this is different than any other bpm watch out there?
If I can't get credit for EVERY high intense activity that I'm doing, than for me - this watch don't deliver to its promise, as it doesn't motivate me on the small things along the day.