Looking for a daily health monitoring watch heart rate feature that actually runs in the background all day, without a monthly app fee? REXQU’s health-focused lineup tracks heart rate continuously using the same optical sensor technology found in far pricier wearables, and none of the current models require a subscription to use it.
This guide covers how the sensor works, which REXQU models track heart rate around the clock, and how to get more reliable readings day to day.

How Daily Health Monitoring Watch Heart Rate Tracking Works
Every REXQU health watch uses photoplethysmography (PPG): an LED shines light into the wrist, a photodiode measures how much of it bounces back, and the watch’s firmware turns the resulting pattern into a beats-per-minute reading. It’s the same underlying method used across the wearable industry — you can read more about how it works in this overview of photoplethysmography.
Because the sensor reads light reflected through skin and blood vessels, fit matters. A watch worn too loosely lets in ambient light and motion noise that can throw off a reading, which is why REXQU’s setup guidance calls for a snug, not tight, band position just above the wrist bone.
REXQU Models With Continuous Heart Rate Tracking
Here’s which daily health monitoring watch heart rate features run continuously in the background versus only on demand, across the current REXQU lineup:
| Model | Heart rate mode | Also tracks | Price |
|---|---|---|---|
| OmniTrack | 24-hour continuous, all-weather | Blood pressure, SpOâ‚‚, stress, sleep | $139.97 |
| VitaSync | Round-the-clock | SpOâ‚‚, sleep, Bluetooth calling | $139.97 |
| VitaCore | Continuous, plus 30-second multi-vital check | BP wellness trend, SpOâ‚‚, temperature, stress | $149.97 |
| HealthLink | Continuous | SpOâ‚‚, sleep, on-demand ECG, temperature | $139.97 |
| BioTrack Pro | Continuous | SpOâ‚‚, large easy-read display | $139.97 |
For the full current lineup and pricing, see REXQU’s Health Smartwatches category page.
Do You Need a Subscription for Heart Rate Tracking?
No. None of REXQU’s current daily health monitoring watch heart rate features sit behind a paid tier; every sensor, trend, and companion-app report is included at the time of purchase. That’s a real point of difference from ecosystems where continuous heart-rate insights, recovery scores, or deeper trend analysis are gated behind a monthly membership.
Continuous vs. On-Demand: Which Do You Actually Need?
Continuous tracking is the better default for most people, since it builds a resting-heart-rate trend over weeks rather than a single snapshot. That trend is what actually flags a meaningful change; one isolated reading tells you very little on its own.
On-demand checks still have a place. They use less battery, and they’re useful if you mainly want a quick number before or after a specific activity rather than an ongoing log. OmniTrack and VitaSync default to continuous tracking out of the box, while VitaCore’s 30-second multi-vital check is built around a deliberate, on-demand routine that also captures blood-pressure wellness trends, SpOâ‚‚, temperature, and stress in the same scan.
If you’re unsure which fits your routine, continuous tracking with the option to review daily and weekly averages in the companion app is the safer starting point; you can always switch to on-demand later to stretch battery life.
Getting More Reliable Heart Rate Readings
A few habits noticeably improve accuracy:
- Wear the band snug and roughly a finger-width above the wrist bone, not loose.
- Keep the sensor’s back glass clean; sweat, lotion, and dirt scatter the LED light.
- During workouts, tighten the band slightly. Wrist movement is the biggest source of noisy readings.
- Give the watch a minute after putting it on before checking a fresh reading, since the sensor needs a moment to stabilize.
A wrist-based optical sensor is a wellness tool, not a diagnostic device. If you notice persistently unusual heart rate readings or have a known heart condition, talk to a doctor rather than relying on smartwatch data alone.
FAQ
Does a daily health monitoring watch heart rate reading update automatically? Yes. On OmniTrack, VitaSync, VitaCore, HealthLink, and BioTrack Pro, heart rate tracks continuously in the background rather than only when you open the app.
Can I turn off continuous tracking to save battery? Most REXQU models let you switch between continuous and on-demand heart rate modes in the companion app settings, which can extend battery life between charges.
Ready to compare the full lineup? Browse REXQU’s Health Smartwatches range, or start with OmniTrack for the brightest display or VitaSync for everyday calls plus tracking.

