The REXQU CardioBand is a screenless band built around your heart — 24/7 heart rate, HRV, blood pressure and blood oxygen, quietly recorded and clearly explained in the G BAND app. 7–10 days per charge.
✓ Free shipping ✓ 30-day money-back guarantee ✓ Works with iPhone & Android
Six reasons the CardioBand is the easiest way to actually know your heart.
Continuous heart-rate monitoring day and night, with clear trends in the free G BAND app.
Round-the-clock heart-rate variability — a real window into stress, recovery and balance.
Blood pressure monitored continuously and logged automatically to your phone.
SpO₂ tracked around the clock, so dips don’t go unnoticed.
Menstrual cycle tracking with a private calendar in the app.
A 220mAh cell runs 7–10 days of normal use from one quick magnetic charge.
The CardioBand tracks your heart rate 24 hours a day — rest, effort and everything between — and turns it into clean, readable trends in the G BAND app.
Heart-rate variability is monitored around the clock — a genuine picture of how stressed or recovered your body is, without wearing a chest strap to bed.
For wellness tracking and awareness — not a replacement for professional medical advice.
Blood pressure and blood oxygen are monitored 24/7 and logged automatically — the daily numbers that matter, without the daily ritual.
For wellness awareness and conversations with your physician — not a replacement for a medical device.
Built-in menstrual cycle tracking keeps a private calendar in the G BAND app, alongside your heart and wellness data.
Steps, calories and multiple sport modes record your activity, and GPS sports track positioning maps your walks and runs — all from a band with no screen to babysit.
The 220mAh battery runs 7–10 days of normal use and 15–20 days on standby. The magnetic charger refills it in under 2.5 hours.
| REXQU CardioBand | Big-Brand Smartwatch | Basic Fitness Band | |
|---|---|---|---|
| Design | Screenless — zero distractions | ✓ | ✓ Basic |
| Heart Rate | 24/7 monitoring | Some models | ✗ |
| HRV | 24/7 monitoring | ✓ | ✗ Small strip |
| Blood Pressure | 24/7 monitoring | Top models only | ✗ |
| Blood Oxygen | 24/7 monitoring | ✓ | ✓ Basic |
| Cycle Tracking | Yes — private calendar | ✓ | Limited |
| Activity | Steps, calories, sport modes + GPS tracks | 2-3 typical | 1-2 |
| Battery | 7–10 days use, 15–20 standby | 45-60g | 25g |
| Water Resistance | 1ATM | 1-2 days | 5-7 days |
| App | G BAND (free) — Android 8+/iOS 13+ | $399+ | $99 + fees |
My cardiologist asked where the week of heart-rate data came from. A band I forget I’m wearing — that’s where.
The HRV trends taught me more about my stress than a year of guessing. And I only charge it on Sundays.
No screen means I actually wear it 24/7, which means the data is actually complete. Simple and brilliant.
Every order is covered by our 30-day money-back guarantee — with free tracked shipping and easy returns. Love it, or send it back. No questions, no fuss.
The CardioBand comes in a clean black finish — comfortable enough to wear around the clock, which is exactly the point.
Just a slim, screen-free band that keeps a complete record of your heart — and stays out of your way.
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1000W GaN technology · 10 ports · charge laptops, phones, tablets and more simultaneously. Ships with your order.
One click — your saved card is charged instantly. This offer is only available right now.
One click — your saved card is charged instantly. This offer disappears when you leave.
A receipt is on its way to your email. Your CardioBand ships within 24–48 hours.
Wear the CardioBand for a full month — workouts, workdays, sleep and all. If it hasn’t made the healthy habits easier, send it back for a complete refund. No restocking fee, no questions.
Everything syncs to the free G BAND app over Bluetooth — heart rate, HRV, blood pressure, blood oxygen, activity and cycle tracking in clear dashboards.
It monitors heart rate, HRV, blood pressure and blood oxygen 24/7 — not just when you ask — so your trends are complete. It’s for wellness awareness and conversations with your physician, not a replacement for a medical device.
Yes. Menstrual cycle tracking keeps a private calendar in the G BAND app.
7–10 days of normal use and 15–20 days on standby. The magnetic charger refills it in under 2.5 hours.
It’s rated 1ATM — fine for handwashing, rain and sweaty workouts. We don’t recommend swimming or showering with it.
Yes. It pairs over Bluetooth with the free G BAND app and works with Android 8.0+ and iOS 13.0+.
Join thousands keeping a complete, quiet record of their heart with the CardioBand — backed by our 30-day money-back guarantee.
Get My CardioBand — 50% OFF →