Looking for an always-on display health watch that shows the time and your latest reading without a wrist-flick first? Between REXQU’s BioVision and VitaCore, only one currently publishes an always-on screen — and that convenience comes with a real battery trade-off worth understanding before you buy.
Quick answer: the REXQU VitaCore is REXQU’s always-on display health watch, with a 2.04-inch always-on AMOLED screen built around a 30-second multi-vital check. The REXQU BioVision uses a standard 1.81-inch HD display instead, prioritizing passive background trend collection over a glanceable always-on screen.
What Makes VitaCore an Always-On Display Health Watch
VitaCore’s 2.04-inch AMOLED panel stays lit at a dimmed brightness between glances, instead of going fully black until you raise your wrist or tap the screen. That means the time, your last heart-rate reading or today’s step count stays visible at a glance — useful if you check your watch often throughout the day, or want a reading visible mid-workout without stopping to wake the screen.
BioVision takes a different approach with its 1.81-inch HD display, which REXQU doesn’t list as always-on. BioVision instead leans into passive background collection — it’s built to accumulate blood-pressure and wellness trends quietly in the background, reviewed later in the companion app rather than glanced at continuously on the wrist.
Always-On Display vs. Battery Life: The Real Trade-Off
An always-on display isn’t free. Keeping any portion of a screen lit continuously, even dimmed, draws more power than a display that’s fully off between checks — the same trade-off phone and watch makers describe whenever an always-on mode ships. According to Wikipedia’s overview of the technology, always-on display implementations are specifically designed to limit power draw by dimming brightness and refreshing only the data that changes, rather than redrawing the full screen constantly — but the feature still costs more battery than a screen that’s off by default.
If you check your health watch dozens of times a day anyway, an always-on display can end up more battery-efficient in practice than repeatedly waking a standard screen. If you mostly glance at it a few times a day or review trends in the app each evening, a standard display like BioVision’s may stretch further between charges for the same use pattern.
VitaCore and BioVision: Side-by-Side Spec Comparison
| Feature | REXQU VitaCore | REXQU BioVision |
|---|---|---|
| Display | 2.04″ always-on AMOLED | 1.81″ HD (not always-on) |
| Core approach | 30-second multi-vital check | Passive background trend collection |
| Heart rate | Included | 24/7 background tracking |
| Blood pressure | On-demand wellness trend | Background trend plus spot checks |
| SpO₂ | Included | Included |
Neither model is a medical device, and neither should replace a validated clinical instrument when a health decision depends on the result — both are built for everyday wellness awareness, not diagnosis.
Can You Turn the Always-On Display Off?
If you decide the battery trade-off isn’t worth it on a given day — travelling, or just trying to stretch a charge further — most always-on screens on wearables can be toggled off in settings so the display behaves like a standard screen-on-wake panel instead. Check VitaCore’s companion app display settings if you want the option without giving up the watch itself.
Frequently Asked Questions
Does an always-on display wear out the screen faster? AMOLED panels can be more prone to long-term burn-in when the same static content stays lit for extended periods, which is part of why always-on implementations dim brightness and limit which pixels stay active rather than keeping the full display at normal brightness around the clock.
Is VitaCore’s always-on mode the same as a phone’s? The underlying idea is the same — show limited information at reduced brightness instead of a black screen — but a smartwatch’s smaller AMOLED panel and lower baseline brightness generally mean a smaller battery cost than an always-on phone screen.
Which REXQU Health Watch Should You Choose?
Pick VitaCore if you want an always-on display health watch you can glance at constantly without a wake gesture, and you’re fine charging a bit more often to get it. Pick BioVision if a slightly longer runtime between charges matters more than a continuously lit screen, and you’re comfortable reviewing your wellness trends in the app rather than on the dial.
See full specs on the REXQU VitaCore product page or the REXQU BioVision product page, or browse the full REXQU Health Smartwatches collection for the rest of the lineup.
Source: Wikipedia — Always-on display.