Looking for a smartwatch with ECG and blood pressure tracking in a single device? Most heart-health wearables pick one feature or the other — an on-wrist ECG sensor here, continuous blood pressure tracking there. Across REXQU’s own ECG lineup of eleven watches and one band, only two models genuinely combine both: the CoreX Pro and the CardioSense.
Why a Smartwatch With ECG and Blood Pressure Is Hard to Find
An ECG sensor needs metal contact points and a clean electrical read; a blood-pressure sensor relies on a different set of optical components entirely. Fitting both into one wrist-sized case, without turning it into a bulky slab, is a real engineering trade-off. That’s why most watches in REXQU’s heart-health collection lean on a single metric — ECG on its own, or blood pressure on its own — rather than both together.
REXQU CoreX Pro vs CardioSense: Specs Side by Side
Both the CoreX Pro and the CardioSense pair an on-wrist ECG with 24/7 blood pressure monitoring, but they diverge on screen size, water resistance and battery life:
| CoreX Pro | CardioSense | |
|---|---|---|
| Price | $159.97 (47% off $299.97) | $159.97 (50% off $320.00) |
| ECG | On-wrist, ~30 seconds | On-wrist, 30 seconds |
| Blood pressure | 24/7 continuous, with out-of-range alerts | 24/7 continuous, with out-of-range alerts |
| Display | AMOLED (exact size not listed by REXQU) | 2.01″ — the largest in REXQU’s heart-health lineup |
| Water resistance | Not specified by REXQU | IP67 |
| Battery | Multi-day (exact figure not listed) | 5–7 days per charge |
| Extras | Blood oxygen (SpO₂), sleep & stress scores, experimental glucose trend estimates | Guided breathing exercise, sleep stage tracking |
| Colors | 6 | 5 |
The CoreX Pro packs in more secondary sensors — blood oxygen, stress and recovery scores, plus an experimental glucose trend feature REXQU is upfront is wellness-only, not a lab test. The CardioSense answers back with a confirmed IP67 rating, a stated 5–7 day battery, and the biggest screen REXQU puts on any heart-health watch.
Who Actually Needs Both Readings on One Wrist
A smartwatch with ECG and blood pressure together makes the most sense for anyone tracking two separate heart-health concerns at once — say, an irregular-rhythm sensation worth logging alongside blood pressure that runs a little high. Rather than pairing a standalone BP cuff with a separate ECG-only watch, one device on one wrist keeps both trend lines in the same app, which is easier to review yourself and easier to hand your doctor at a check-up.
If you only care about one of the two metrics, REXQU’s wider ECG smartwatch collection and dedicated blood pressure smartwatches page both go deeper on single-metric picks, including the screenless PulseBand for ECG-only tracking with a 25–30 day battery.
Getting a Clean Reading From Either Watch
Both watches read best a few minutes after you’ve stopped moving. Motion and grip pressure distort an ECG trace, and a blood pressure reading taken mid-activity will run artificially high. Sit down, rest your arm flat, and let the full 30-second ECG cycle or the blood-pressure check finish without adjusting your wrist — you’ll get a cleaner trace and a more useful trend line in the app over weeks of readings, rather than one noisy data point.
FAQ: Smartwatch With ECG and Blood Pressure
Is a smartwatch with ECG and blood pressure as accurate as clinical equipment?
No. Both readings use the same underlying principles as clinical devices — electrical signal detection for ECG, and optical or pressure-based sensing for blood pressure — but wrist-worn sensors aren’t validated to the same standard as a cuff-based monitor or a clinical ECG machine. Treat both as trend tools, not diagnostic ones.
Do I need a subscription to use either watch?
No. Both the CoreX Pro and CardioSense work with the free REXQU app on iPhone and Android, with no recurring fees for either the ECG or blood pressure features.
Which one should I buy if I can only pick one?
Pick the CardioSense for a confirmed IP67 rating, a stated 5–7 day battery and the bigger 2.01-inch screen. Pick the CoreX Pro if the extra blood oxygen and stress/recovery tracking matter more to you than a confirmed water-resistance rating.
If tracking your heart rhythm and your blood pressure from the same wrist matters to you, the CoreX Pro and CardioSense are currently the only two watches in REXQU’s lineup built around both. Compare full specs on the CoreX Pro product page or the CardioSense product page, or browse the whole ECG smartwatch collection to compare against the rest of the range.
REXQU devices are wellness devices, not medical devices. On-wrist ECG and blood pressure readings are for personal reference and trend-spotting, not a replacement for clinical equipment or medical advice.