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发帖数: 20761 | 1 http://www.dx.com/p/eastor-tw68-bluetooth-smart-bracelet-w-blood-pressure-monitor-blue-442301
Some people may need to frequently measure their blood pressure because of
their health condition, but it’s often a cumbersome experience, so they may
get lazy, and not do it as often as needed. TW68 smart bracelet should make
this easy, as it’s your typical fitness tracker with an heart rate monitor
, but adding the capability to also measure blood pressure. It’s also very
cheap, and I first found it on DealExtreme where it sells for just $24.
TW68TW68 specifications:
MCU – Nordic Semi NRF51822 ARM Cortex M0 micro-controller with 2.4 GHz
radio
Data Storage – 7 days detailed data, 23 days total data
Connectivity – Bluetooth 4.0 LE
Display – 0.49″ OLED display
Sensors – PixArt-PAH8001EI blood pressure sensor; 6-axis Invensense-
MPU6500 accelerometer and gyroscope
Function Health tracker: Blood pressure measurement, Heart rate monitor,
Pedometer, Sleep tracker
Other functions: Call/Message notification, Fall reminder, Social sharing,
Time, Alarm clock
Misc – Vibrator, touch button
Battery – 60 mAh LiPo battery good for 7 to 15 days; charge time: around
1h30; magnetic charging
Dimensions – Watch face: 41.1 x 18.5 x 11.9mm; silicon strap: 240 x 20.8 x
11.9mm
Weight – 25 grams
IP Rating – IP65 (waterproof while washing hands)
The smartband is sold with its custom USB charging cable, and a user’s
manual. The provided app is compatible with Android 4.4+ and iOS 7.1+
smartphones. I’ve been told that the blood pressure data is not shown
directly on the watch, so you’ll need to initiate and read the measurement
with your Android smartphone or iPhone, which is not as convenient as it
could be.
Blood_Pressure_Monitor_Android
This all still looks pretty good, but based on my disappointing experiences
with optical heart rate monitors on most Chinese smartwatches and trackers,
except possibly with Energympro EP-SH09 (not perfect but usable), I have
serious doubts about the heart rate monitor accuracy, let alone the blood
pressure claims. If you look at the product description on DX, the
manufacturer claims the measurements are very close to professional
equipments… But the embedded Pixart “blood pressure sensor” is actually
an heart rate monitor, and the sensor manufacturer only claims heart rate
capabilities, nothing about blood pressure.
Finally, if you look at the upcoming and FDA approved Omron BP6000
professional blood pressure watch it is designed with a small motor that
will gently squeeze your wrist while taking measurements, something that
TW68 won’t do. So it’s most likely a toy than anything else. The demo from
Tinydeal below shows the accessories and some of the capabilities of the
bracelet, except of course HRM and BP…
If you’d still like to play with it, beside DX, you can also buy it on
GeekBuying, Aliexpress, Amazon US and Tinydeal for $22 to $30 shipped. |
