REXQU CardioCall
Records an on-wrist ECG and takes Bluetooth calls, with SpO2, body temperature, sleep and stress on a 1.56″ AMOLED.
On-Wrist ECGBluetooth CallingSpO2 + Temp
2 Colors Available
All REXQU ECG Smartwatches
Nine watches and one screenless band with a real on-wrist ECG sensor — pick by display size, extra sensors, safety features or price.
REXQU CoreX Pro
Our flagship heart-health watch: on-wrist ECG with 24/7 heart rate and blood pressure. Know your heart, every day.
ECGBlood PressureBluetooth CallsAMOLED
6 Colors Available
REXQU CardioSense
A 30-second ECG on our biggest, easiest-to-read heart-health display — big digits, zero squinting.
30-Sec ECG2.01″ DisplayBlood Pressure
5 Colors Available
REXQU AetherX
The flagship-style pick: rotating crown, ~30-second ECG, built-in GPS and a body-temperature sensor.
ECGBuilt-in GPSBody Temperature
2 Colors Available
REXQU HealthWave
Continuous ECG, blood pressure and heart rate monitoring keeps your vitals in view — set it and forget it.
Continuous ECGBlood PressureHeart Rate
4 Colors Available
REXQU O2Max
On-demand ECG with oxygen-first tracking — blood oxygen one tap away, backed by a big battery.
ECGBlood OxygenBig Battery
6 Colors Available
REXQU HealthLink
Your health hub on a 1.95″ AMOLED — on-demand ECG, blood pressure, SpO₂ and body temperature in one place.
ECGSpO₂Temperature
6 Colors Available
REXQU Chronex
Engineered for precision — a 30-second ECG and one-button SOS in a classic round design.
30-Sec ECGOne-Button SOSHeart Rate
3 Colors Available
REXQU IntelliFit
ECG plus everyday practicality: Bluetooth calls from the wrist, one-button SOS and remote family care.
ECGBluetooth CallsFamily Care
7 Colors Available
REXQU Infinity Pro
Premium build, serious tracking — ECG with risk assessment and a 60-second health check.
ECG Risk AssessmentPremium BuildLong Battery
2 Colors Available
REXQU PulseBand
No screen, all signal: a dedicated on-band ECG sensor with 24/7 heart rate, HRV and blood pressure — for 25–30 days per charge.
On-Band ECGHeart Rate + HRV25–30 Day Battery
3 Colors Available
Which ECG Watch Is Right for You?
Compare displays, ECG style and each model’s stand-out feature across the range.
| Model | Display | ECG | Stand-out Feature | Price |
|---|---|---|---|---|
| REXQU CoreX Pro | AMOLED | On-wrist | 24/7 heart rate & blood pressure | $159.97 |
| REXQU CardioSense | 2.01″ — our biggest | 30-second | Big digits, one-tap readings | $159.97 |
| REXQU AetherX | Rotating crown | ~30-second | Built-in GPS & body temperature | $199.97 |
| REXQU HealthWave | — | Continuous | Continuous BP, ECG & heart rate | $139.97 |
| REXQU O2Max | — | On-demand | Blood oxygen one tap away, big battery | $169.97 |
| REXQU HealthLink | 1.95″ AMOLED | On-demand | Adds body temperature tracking | $139.97 |
| REXQU Chronex | 1.43″ AMOLED | 30-second | One-button SOS | $159.97 |
| REXQU IntelliFit | 1.91″ HD | On-wrist | Bluetooth calls, SOS & family care | $159.97 |
| REXQU Infinity Pro | 1.56″ AMOLED | With risk assessment | 60-second health check | $169.97 |
| REXQU PulseBand | Screenless band | On-band sensor | 25–30 day battery, no subscription | $139.97 |
Why Choose an ECG Smartwatch?
Heart rate tells you how fast your heart is beating; an ECG shows how it’s beating. An ECG smartwatch (the same thing as an EKG watch) records the electrical signal of each heartbeat straight from your wrist — rest a fingertip on the sensor, wait about 30 seconds, and the recording lands in the free app, where every reading builds a trend history you can share at a check-up. No appointment, no wires, no subscription.
The range covers every style of use. The CoreX Pro is the flagship heart-health watch with ECG, 24/7 heart rate and blood pressure; the AetherX wraps its ECG in a flagship rotating-crown design with built-in GPS and a body-temperature sensor; the HealthWave keeps ECG, blood pressure and heart rate running continuously in the background; and the screenless PulseBand records an ECG from a band that runs 25–30 days per charge. Bigger-screen comfort? The CardioSense puts its 30-second ECG on a 2.01-inch display — also our top pick on the smartwatches for seniors page. Blood pressure first? Every watch here tracks it too — see the full blood pressure smartwatch collection, or browse all health smartwatches.
REXQU watches are wellness devices, not medical devices — an on-wrist ECG is for personal reference and trends, not a replacement for a clinical ECG or medical advice.
ECG Smartwatch FAQs
What is an ECG smartwatch and how does it work?
An ECG smartwatch records an electrocardiogram — the electrical signal of your heartbeat — right from your wrist. You rest a fingertip on the watch’s sensor for about 30 seconds and the recording is analysed in the free companion app. REXQU watches are wellness devices, not medical devices: an on-wrist ECG is for keeping an eye on your heart between check-ups, not for diagnosis.
Is an EKG watch the same as an ECG watch?
Yes — ECG (electrocardiogram) and EKG (from the German Elektrokardiogramm) are two names for exactly the same recording. Every EKG watch on this page records it the same way: fingertip on the sensor, about 30 seconds, results in the app.
Which REXQU smartwatch has the best ECG?
The REXQU CoreX Pro is our flagship heart-health watch, pairing on-wrist ECG with 24/7 heart rate and blood pressure. The REXQU AetherX is the flagship-style pick — rotating crown, ~30-second ECG, built-in GPS and a body-temperature sensor. And the REXQU CardioSense puts its 30-second ECG on our biggest heart-health display at 2.01 inches.
Is there an ECG tracker without a screen?
Yes — the REXQU PulseBand has a dedicated ECG sensor built into a screenless band, alongside 24/7 heart rate, 24-hour HRV and blood-pressure monitoring, and it runs 25–30 days per charge with no subscription.
Do ECG smartwatches also track blood pressure?
Yes — every model on this page pairs ECG recording with wrist-based blood pressure, heart rate, blood oxygen and sleep tracking, so you get a fuller picture of your heart in one device. If blood pressure is your priority, see the full blood pressure smartwatch collection.
Which ECG watch is best for seniors?
The REXQU CardioSense — its 2.01-inch display is the biggest in the range, with big digits and one-tap readings. The REXQU IntelliFit adds Bluetooth calls, one-button SOS and remote family care, and the REXQU Chronex pairs its 30-second ECG with one-button SOS. See the full guide to smartwatches for seniors.
Do ECG watches work with iPhone and Android — and is there a subscription?
Every REXQU ECG smartwatch works with both iPhone and Android through the free companion app, and there is no subscription — ever. Recordings and trends stay available to review and share at a check-up.