Zephyr HxM Smart Heart Rate Monitor for iPhone 4S, iPad (3rd Gen) & iPhone 5 with Bluetooth Low-Energy (4.0)


The Zephyr HxM Smart is a wearable fitness-tracker designed for use with iPhone 5, 4s, Android 4.3 and other Bluetooth Smart devices. It combines our Smart Fabric, heart rate sensor technology, movement sensors and Bluetooth Smart connectivity on a chest strap for athletes who live on the cutting edge of technology. Using technology developed for NASA, Military Special Forces and Hospitals, the HxM Smart is durable, waterproof (1m) and built with firmware that can be upgraded over-the-air. Smart Fabric is conductive fabric that provides market-leading comfort and accuracy. It is woven onto a soft, elastic, adjustable Machine Washable strap worn around the chest. It is covered by a 12-month limited warranty from defects and the strap itself is replaceable. The freedom to run: your phone, your app no subscription fees! Why should you be tied to a device that only lets you use one app and charges you a subscription fee for the privilege? With an open communication design, the HxM provides unparalleled flexibility with the phones and applications you use. Supported by dozens apps for both iOS devices and Android 4.3 phones.

$ 49.95

Customer Reviews


38 of 39 people found the following review helpful
5.0 out of 5 stars
Works with Moto X and Nexus 5 on Kit Kat (Android 4.4) running SenseView & Runtastic Pro apps., November 19, 2013
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This review is from: Zephyr HxM Smart Heart Rate Monitor for iPhone 4S, iPad (3rd Gen) & iPhone 5 with Bluetooth Low-Energy (4.0) (Health and Beauty)
As other reviewers have already stated, the Zephyr HxM Smart is compact, its strap is comfortable, and its heart-rate datastream is dependable. Plus, being a Bluetooth LE/Smart device, the HxM Smart has phenomenal battery life. Personally, I’ve got way too many devices that need to be charged on a daily or almost-daily basis; I’m glad that the HxM Smart is not one of them.

I’m using my Zephyr HxM Smart with my Nexus 5 and my Moto X, both of which are on Android 4.4 (Kit Kat).

To connect the HxM Smart to your Bluetooth LE equipped Android device, there is a trick that is NOT obvious if you’re accustomed to pairing Bluetooth devices within the system-wide Bluetooth settings: DO NOT ATTEMPT A BLUETOOTH PAIRING WITHIN THE SYSTEM BLUETOOTH SETTINGS. Instead, connect to the HxM Smart directly from the app you plan to use.

For example, if you want to use the HxM Smart with SenseView, do the following:

1. First make sure you install the companion SenseView BT Smart HR Sensor app along with SenseView.
2. In SenseView, open [Settings]:[Sensor settings]:[Basic sensor settings].
3. Click on and check/enable [Use BLE Heart Rate Sensor]. (You will see this checkmark only if you have the SenseView BT Smart HR Sensor companion app installed.)
4. Then scroll down to the Dashboard Profiles and choose [BLE Heart Rate Sensor heart rate]. You’ll be prompted with a screen that asks you to choose a sensor.
5. Turn on your Zephyr by wearing it (or if it’s sitting on your desk, touching its two terminals).
6. In SenseView, click on [scan for devices].
7. Within a second or two, you should see the Zephyr and its MAC address appear on screen. Choose the Zephyr.
8. Hit the back button in SenseView until you get to the main graph screen.
9. Click the Play button, and wait a few seconds while SenseView connects to the Zephyr. Once connected, the heart-rate graph starts moving.
10. If you want to see additional datastreams from the Zephyr, go to [Settings]:[Sensor settings]:[Advanced sensor settings] and you can enable [BLE Heart Rate Sensor RR Interval] and [BLE Heart Rate Sensor Contact Detected].

In Runtastic Pro:

1. Go to [Settings]:[Heart Rate Settings] and you’ll be given a choice of three types of heart rate monitors.
2. Turn on your Zephyr by wearing it (or if it’s sitting on your desk, touching its two terminals).
3. Select [Runtastic Bluetooth Smart Combo Heart Rate Monitor].
4. You may see a “Scanning for devices…” notice for second or two, before you see the Zephyr and its MAC address listed. Choose the Zephyr.
5. A sensor status screen will appear. Wait a few seconds for the connection. Once connected, you’ll see your heart rate.
6. Back out of settings, and you should be good to go.

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20 of 20 people found the following review helpful
1.0 out of 5 stars
Buyer Beware – Worked great for a while then problems began…, April 25, 2014
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This review is from: Zephyr HxM Smart Heart Rate Monitor for iPhone 4S, iPad (3rd Gen) & iPhone 5 with Bluetooth Low-Energy (4.0) (Health and Beauty)

This review is for the Zephyr HxM Smart Heart Rate Monitor. I purchased it from the manufacturer, Zephyr Technology, on Amazon.com for .95 and Amazon fulfilled the order via “free” Amazon Prime 2-day shipping.

——updated review 07-Jul-2014———————–
After using this product for over 2 months, I am changing my previous 5-star review to just 1 star because of the problems I have encountered. I’m an experienced user who used to teach for the Red Cross (over 15 years) and am very familiar with heart rate monitors and how to use them. Every time I used this product, I consistently prepared my chest properly by moistening the skin under the electrical pads on the chest strap.

The monitor worked fine for the first couple of weeks then it began to indicate an erratic heart beat that would spike high. Instead of 145 bpm during exercise, it would sometimes falsely indicate over 200 bpm. The problem got worse with time and the monitor became unreliable.

I tried replacing the battery and this did not solve the problem. I carefully cleaned the chest strap with cool water as instructed and it didn’t help. Finally, I contacted the manufacturer, Zephyr, for warranty service and they gave me an RMA number and I returned both the monitor and chest strap as requested.

They tested them and concluded that the chest strap had gone bad. They returned my monitor with a new chest strap. It worked okay for just two events and then it resorted to its former bad behavior of spiking high intermittently near the beginning and ending of a workout. This is the same behavior the first strap exhibited before it became unreliable much of the time.

I had previously purchased a spare chest strap (blue) which I had not used yet. So I tried it and the monitor began to work properly again. So far (after just a few days) the monitor is still working properly with the new chest strap.

In case it is helpful, I’ll briefly describe my application: I’m an older guy chasing 60. I train for long-distance bicycle rides like “century rides” (100 miles in one day). My daily workouts range from 20 to 35 miles nonstop riding a road bike on smooth paved roads. Each workout takes from 90 to 120 minutes. I rest my forearms on aerobars so my torso is forward over my bike the entire time and does not move much. I ride in the early morning when the temperature is moderate (from 60 to 70?F) and I ride at a moderate speed (averaging from 15 to 18 mph for the entire workout). So I do not sweat much. With my torso relatively calm and only moderate sweating, the monitor should have a fairly easy time. Also, my smart phone is mounted on my handlebar stem and is never more than 12 inches from the monitor during a workout.

Conclusions:
Many of the chest straps for this model heart rate monitor are defective (I’m on my third strap in just over 2 months). My original strap stopped working properly and the replacement that Zephyr sent also stopped working properly. I had to purchase another strap (the same model from Zephyr but a different color) before the monitor would work reliably again. I’m worried that this third strap won’t last long either.

Therefore, I cannot recommend this heart rate monitor. Until Zephyr replaces the chest straps with a new model that is reliable, you will be taking a gamble as to how long the monitor will work. It’s a shame, because this could be an excellent product if it weren’t for the bad chest straps.
——end of updated review—————————-

——the original review follows————————-
This product is advertised for late-model iPhones and iPads which has confused a lot of buyers. It actually works very well with Android devices, too. All the Android device needs is Bluetooth 4.0 (the low-power or “smart” version of Bluetooth) and Android 4.3 or later. This is the only Zephyr heart rate monitor with Bluetooth 4.0. The other ones (like the one advertised for Android and Windows devices) only has a Bluetooth 3.0 transceiver and will consume battery power more rapidly.

The Galaxy Note II phone has the Bluetooth 4.0 transceiver, but it lacked the necessary driver since the phone shipped originally with Android 4.2. Since all Note II phones have been upgraded to Android 4.3, they now have the necessary driver and work great with Bluetooth 4.0 gear.

I don’t regularly use Bluetooth so I keep it off most of the time to conserve my phone’s battery. The way I setup and use the Zephyr HxM Heart Rate Monitor is like this:

1 – I typically begin with Bluetooth turned off and the heart monitor disconnected from the chest strap.
2 – Launch the Endomondo app, tap the menu icon (three small vertical squares at the right end of Endomondo’s title bar), and select the “Settings” command.
3 – Tap the “Accessory Settings” command and stop.
4 – Put on the…

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21 of 23 people found the following review helpful
5.0 out of 5 stars
Simple, effective, works well with iPhone 4s, March 16, 2013
By 
fast_matt (Dallas, TX USA) – See all my reviews

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This review is from: Zephyr HxM Smart Heart Rate Monitor for iPhone 4S, iPad (3rd Gen) & iPhone 5 with Bluetooth Low-Energy (4.0) (Health and Beauty)
I bought this Zephyr hear rate monitor to get a better understanding of how many calories I was really burning doing different activities – primarily strength training, yoga, Pilates, and cycling.

I’ve had it for about a month now, paired with an iPhone 4s running the Cyclemeter and Digifit apps, and it’s served me well so far.
The sensor has worked seamlessly with Digifit; no issues whatsoever. Cyclemeter has sometimes hiccuped and lost pair when I left the phone on the floor and ran out of range; that required deleting the sensor in Cyclemeter and re-pairing. Since discovering that, I’ve stuck to Digifit at the gym (.99 for the sensor package, or .99 for the Pro package).

The sensor band is fairly comfortable, easy to put on, and works well after wetting the pads with water, even when worn overnight.
The sensor is small and lightweight; I mainly notice it when lying flat on my stomach.
Heart rate values have been believable at all times – no absurdly low or absurdly high numbers.
The manufacturer claims a 150 hour battery life; at my current rate of use it will be 6 months before I can tell you if that’s true but it’s going strong at 30 hours or so.

Calculated calories burned seems a bit high in both apps, but that isn’t the sensor’s fault. Online calculators gave similar values based on average heart rate.
I compared the calculated caloric value from Digifit with an exercise bike that measured power output and found the app calculated 142 calories where the bike calculated 100, so I multiply the heart rate-based caloric value by 0.70 to provide a (hopefully!) more accurate number.

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