Class II medical-grade hardware and TCM AI algorithms put stroke defense and quantified brain fog on your wrist. A true wrist cuff measures blood pressure, and four data sources fuse into one risk trend.
U16 Sport · Obsidian BlackU19 Flagship · Cloud White
40sPer Capture
0–100Clarity Score
25–30 DaysPer Charge
Class II Medical Device Registration · Yue Xie Zhu Zhun 20262070686
About Us
Guangdong CHAO XIAO MAI Digital Technology Co., Ltd.
Brain Fog Risk Assessment and Life‑Alert Digital Health Technology
With Class II medical-grade hardware and TCM AI algorithms, putting stroke defense and quantified brain fog on your wrist.
We turn “invisible brain fatigue” and “sudden cerebrovascular risk” into quantifiable, alert-generating digital metrics. Drawing on the clinical data foundation of the Preventive Health Sub-center of the National Engineering Research Center for Modernization of Traditional Chinese Medicine, we developed our own TCM AI brain fog grading model, and combined it with Class II medical-grade cuff pressure measurement to create CHAO XIAO MAI Life-Alert Watch.
This is more than a smart watch. For high-pressure professionals, people at cardiovascular risk and seniors living alone, it provides a daily monitor–alert–intervene health management loop.
At CHAO XIAO MAI, every heartbeat and pulse becomes a line of defense for life.
PositioningDigital health management focused on brain fog risk grading and cerebrovascular warning
StrategyMedical-grade hardware + TCM AI algorithms · building a monitor–alert–intervene loop
Product MatrixLife-Alert Watch / TCM AI Pulse Platform / Brain Fog Relief Energy Cream
Products
ProductsThree product lines working together across health monitoring, TCM pulse diagnosis and daily care.
A wrist-worn health monitoring device with Class II medical-grade cuff blood pressure measurement, brain fog risk grading, stroke risk warning and one-touch SOS.
The first of its kind in ChinaA watch that pioneered applying TCM pulse signals to brain fog risk grading
Core Capability40-second PPG pulse capture — one session yields both a brain fog grade and a stress load reading
Long-Term TrendsBlood pressure, heart rate, SpO₂ and sleep recorded daily. A personal baseline forms in 15–28 days — cross it and you get an alert.
Tech FoundationIn-house CHAO XIAO MAI Brain Fog Model v2.0, trained on clinical data together with the Preventive Health Engineering Sub-center of the National Engineering Research Center for Modernization of Traditional Chinese Medicine
Hardware FoundationA wrist electronic blood pressure monitor. Cuff oscillometry gives real mmHg — not an optical estimate.
U19FlagshipU16SportRetail Price ¥3380/unit
Class II Medical Device Registration · Yue Xie Zhu Zhun 20262070686
An Elegant Dial in Champagne Gold and Samurai Black
A contemporary square watch profile with a 2.01-inch curved HD touchscreen. A wide field of view, a crisp readable interface and smooth touch response put data at a glance.
02 Strap
A Comfort Revolution in Cuff Material
Outside, a fine white leather grain for a premium feel. Inside, skin-friendly cuff-pressure silicone that breathes and wicks. With a tungsten buckle, the clean tone suits both business and casual wear — comfort redefined.
03 Sensing
8-Channel Flexible Optical Array
The black circular area houses heart rate, SpO₂ and an 8-channel flexible optical array under sapphire glass for accuracy and efficiency. The square-circle contrast builds its own order — hard tech as a wrist aesthetic.
PRODUCT SPEC
Magnetic Charging, No More Fumbling with Cables
No alignment needed — it snaps into place, making every charge effortless.
Magnetic charging cable included
Bring the magnetic end near the back of the watch and it aligns and attaches automatically; while charging, the screen shows an animated icon and live battery percentage.
Snaps OnFull in 30 Min5V/1A
Magnetic
A magnetic charging cable comes standard. Bring the magnetic end near the back of the watch and it aligns and attaches automatically for a quick top-up.
Live Progress
While charging, the screen lights up with an animated icon and shows the battery percentage, so you always know where you stand.
Full in 30 Minutes
An efficient charging design takes you from 0 to 100% in about 30 minutes — a coffee break is enough.
Safe Charging Advice
For safety and battery life, use a standard 5V/1A USB magnetic charger and avoid non-original or high-wattage fast chargers.
Blood pressure is the most heavily weighted modifiable factor for stroke. An estimate cannot support an alert — only real mmHg can.
I measured on my wrist and checked it against the hospital monitor — 128/80, same.
A micro cuff on the wrist applies physical pressure and reads systolic and diastolic directly by oscillometry. No optical curve fitting, and no weekly calibration against a cuff monitor.Blood pressure is the most heavily weighted and most modifiable factor for stroke. An estimated number cannot support an alert.
LIVE CAPTURE
One Touch of a Fingertip, 200Hz Captures the Pulse Wave
Connect the watch, open the capture screen, and the live pulse curve runs by itself for 40 seconds. When it finishes you get four numbers on the spot: pulse rate, pulse force, pulse rhythm and qi-blood — first-hand evidence for model grading, not a questionnaire estimate.
24bpm · real-time pulse rate
100Pulse Force
15Pulse Rhythm
58Qi & Blood
FOG SCALE
Brain Fog Has Four Grades. Which One Are You?
We are not asking you to tough it out — we start by measuring the discomfort you cannot quite describe.
70–100 pts
Healthy
Qi and blood nourish the brain; thinking is clear, focus and memory are steady. Only brief fatigue after overwork, relieved by rest.
60–69 pts
Light Fog | Mild
Occasional dizziness and slow thinking, with forgetfulness now and then. Worse after late nights, stress or meals, but little impact on daily work.
50–59 pts
Thick Fog | Moderate
Persistent fog, mental exhaustion from the slightest effort, declining attention and frequent forgetfulness, often with poor sleep and whole-body fatigue.
30–49 pts
Heavy Fog | Severe
Unclear-headed all day, slow reactions, reduced comprehension, sometimes with persistent dizziness and low mood, clearly disrupting daily life.
How the model works:Three TCM disease mechanisms (dampness-turbidity obstructing the brain / qi and blood deficiency / liver qi stagnation with blood stasis) are scored separately, then calibrated against meridian balance; these are weighted with the HPA stress axis and cerebrovascular load trends, and finally converted into a 0–100 mental clarity score. The technical foundation is our own CHAO XIAO MAI Brain Fog Model v2.0, trained through joint modeling with the Preventive Health Engineering Sub-center of the National Engineering Research Center for Modernization of Traditional Chinese Medicine.
STROKE RISK
Stroke Risk, Blood Pressure and Sleep — Managed on Your Wrist Every Day
Four sources of daily data fuse into one continuously visible risk trend line.
Cuff Oscillometry BP · real mmHg values
Watch the long-term average and the morning surge — the most weighted modifiable factor for stroke.
PPG Pulse Wave · arterial elasticity
Arterial stiffening trends read from waveform features — the state of the vessels that mirror the brain's.
SpO₂ · nocturnal hypoxia
Nocturnal hypoxia suggests sleep apnea, an independent risk factor for stroke.
Heart Rate & HRV · autonomic function
Signals a trend before symptoms appear, when the stress axis is out of balance and blood pressure regulation falters.
Four-Source Fusion · Risk TrendLast 30 Days
Blood PressurePPG Pulse WaveSpO₂Heart Rate
Note: The watch outputs risk trend indications, not a medical diagnosis. If abnormalities persist, seek medical attention for TCD / imaging assessment.CHAO XIAO MAI · Life-Alert Watch | Cuff BP + PPG + SpO₂ + Heart Rate Four-Source Trend Model
GET STARTED
Four Steps to Use It — and the Report Looks Like This
Connect, measure, and this appears on your phone — readable without the manual.
STEP 01
Connect
Turn on Bluetooth and location on your phone, then search CHAO XIAO MAI in WeChat mini programs or scan the code.
STEP 02
Profile
Enter phone, name, gender, birthday, height and weight, and accept the Terms of Use and Privacy Policy.
STEP 03
Capture
Follow the prompt for fingertip capture, keep wearing the watch at night, and let it record the whole night's signals.
STEP 04
Report
Your brain fog grade and risk trend report is generated. The longer you wear it, the sharper your baseline and the more personal the trend.
01Home02Register03Fingertip Capture04Brain Fog Report05Metric Details06Comparison
← Swipe to see all 6 screens →
SHOP
Buy Watch
Both models at one price, ¥3380/unit. Pay by WeChat QR code; shipped via SF Express within 48 hours.
Both Models, One Price
¥3380/ unit
U19Brain fog grading · stroke trend · cuff BP · SOS — fully loaded¥3380
U16Brain fog grading · cuff BP · SOS · HR, SpO₂, sleep · IP68, long battery life¥3380
WeChat QR payment, shipped via SF Express within 48 hours
Includes watch, magnetic charging cable, manual and registration information
Profile and reports in the mini program, free for life
Compliance notice: This product is a health monitoring and risk indication device. Its output does not constitute a medical diagnosis and is not a substitute for hospital examination or a physician's judgment. SOS is an assistive calling feature — in an emergency, dial 120 immediately. Product structure and functions are subject to the actual device and registration documents.
SPECIFICATIONS
Full Watch SpecsThe U19 and U16 share the same hardware platform and cuff module; they differ only in feature set. Data comes from the product registration file and factory configuration; the manual in the box prevails.
Class II Medical Device Registration CertificateYue Xie Zhu Zhun 20262070686
Product PositioningHealth monitoring and risk indication device; does not constitute a medical diagnosis
Data & PrivacyHealth data is used only to generate your own reports and nothing else. The Terms of Use and Privacy Policy are signed and logged inside the mini program.
ManufacturerGuangdong CHAO XIAO MAI Digital Technology Co., Ltd.
Compliance notice: Outputs are health status grading and risk trend references and are not a substitute for hospital examination or a physician's judgment. SOS is an assistive calling feature — in an emergency, dial 120 immediately. Product structure and functions are subject to the actual device and registration documents.
READY
Specs Read. Pick One and Start.
Both models at one price, ¥3380/unit. WeChat QR payment accepted; shipped via SF Express within 48 hours of payment.
ServiceFrom purchase to daily use, from monitoring to care — we are with you all the way.
Health Alert Service
Smart alerts when watch data looks abnormal, so no health signal goes unnoticed
Pulse Report Service
AI pulse report interpretation with continuous trend tracking
Health Consultation
Wellness and care guidance by phone, one-to-one response
After-Sales Service
Warranty and repair support for worry-free use
News
NewsCompany news and industry insights — every step of CHAO XIAO MAI.
2026-10-23 · Company News
Our New Website Is Live
Our positioning, three product lines and user services in one place — our digital brain-care health management is now open to the public.
2026-10 · Product Launch
Three Product Lines Take Shape
The Life-Alert Watch, the AI Pulse Device and the Energy Cream work together to cover monitoring, assessment and intervention.
2026-10 · Industry Watch
TCM Preventive Care Meets Digital Health
When pulse diagnosis is read by algorithms and health data is recorded day after day, preventive care turns from a concept into a daily habit for everyone.
Contact
ContactProduct enquiries, business partnerships and distribution — get in touch anytime.
Room 912, Building 5, Hongda Business Creative Park, No. 96 Yuanxiang Road, Yunpu Street, Huangpu District, GuangzhouGuangdong CHAO XIAO MAI Digital Technology Co., Ltd.
Distribution / Corporate Purchase / Brand PartnershipMedia enquiries welcome too
