Looking for an ECG smartwatch with Bluetooth calling instead of two separate gadgets on your wrist and in your pocket? The REXQU CardioCall records an on-wrist ECG and answers phone calls over Bluetooth from the same 1.56-inch AMOLED display — one device instead of juggling a call and a health check separately.
Most ECG-capable watches focus purely on the heart-health side and leave calling to a phone or a separate smartwatch line. CardioCall folds both into one watch, which matters if you’re already wearing something on your wrist all day and would rather it do more.
How an ECG Smartwatch With Bluetooth Calling Like CardioCall Works
Rest a finger on the CardioCall’s sensor and it records a personal ECG in about 30 seconds, reviewable afterward in the app for a wellness snapshot. Bluetooth 5.3 handles the calling side — answer and make calls straight from the watch, so the phone can stay in a bag or pocket. Both functions run on the same 1.56-inch, 480×480 AMOLED display in an IP67 water-resistant body.
Alongside ECG and calling, CardioCall tracks blood oxygen (SpO2) on demand, continuous heart rate, one-click blood pressure, body temperature, and sleep and stress readings — with women’s health tracking and SOS built in as well.
Why Combine ECG and Bluetooth Calling on One Watch
The practical case is simple: fewer devices to charge, fewer things to forget at home, and one less reason to reach for the phone during a workout, a walk, or a work call. For anyone tracking heart rhythm regularly — after a cardiologist recommendation, or just out of general interest in heart-rate variability and rhythm trends — having ECG one tap away on the same watch that’s already taking calls removes a step rather than adding one.
At-home ECG tools have become common enough that health organizations now publish guidance on how they fit alongside — not instead of — clinical monitoring; the American Heart Association’s overview of cardiac event recorders and at-home heart monitoring is a useful starting point for understanding where consumer devices fit in.
Full Spec Rundown
- On-wrist ECG recording, reviewed in-app
- Bluetooth 5.3 calling — answer and dial from the wrist
- Blood oxygen (SpO2) on demand
- Continuous heart rate and one-click blood pressure
- Body temperature readings
- Sleep and stress tracking
- Women’s health tracking and SOS
- 1.56″ 480×480 AMOLED, IP67 water resistant
CardioCall currently runs $159.97 (down from $319.94 during REXQU’s launch offer), ships in 24–48 hours, works with iPhone and Android, and carries a 30-day money-back guarantee with no subscription required.
Who Should Consider This ECG Smartwatch With Bluetooth Calling
This ECG smartwatch with Bluetooth calling fits best for someone who wants ECG readings in easy reach but doesn’t want to also carry a phone for calls during exercise or errands. If ECG plus a bigger battery matters more than calling, REXQU’s O2Max pairs on-demand ECG with body composition and a bigger cell; if built-in GPS is the priority alongside ECG, the AetherX adds a rotating crown and location tracking.
FAQ
Does the ECG replace a cardiologist’s diagnosis? No — CardioCall is a wellness companion, not a medical device, and readings are meant to support conversations with a doctor, not replace clinical diagnosis.
Does Bluetooth calling drain the battery fast? Calling uses more power than passive tracking, similar to any Bluetooth headset, so heavy daily call use will shorten the interval between charges compared with tracking alone.
Is it waterproof enough for the shower? It’s IP67-rated for dust and water resistance from rain, sweat, and splashes — check REXQU’s product page for the manufacturer’s specific guidance before showering or swimming with it.
Ready to try an ECG smartwatch with Bluetooth calling for yourself? See the rest of the lineup on REXQU’s ECG Smartwatches page, or view full specs on the REXQU CardioCall product page.
For wellness tracking and awareness — not a replacement for professional medical advice or diagnosis.