16Double8 ZL54CJ Smart Watch with Bluetooth: Heart rate monitoring
Available Options
What does a smartwatch need to do to earn its keep on your wrist? The ZL54CJ aims to answer that with a blend of health smarts and everyday utility. It pairs effortlessly over Bluetooth, piping notifications for calls, texts, and apps straight to your wrist—no more frantic phone-digging during meetings or workouts. For the health-conscious, it's a mini clinic on a strap, tracking heart rate, blood pressure, and blood oxygen levels in real-time. Think of it as your personal wellness dashboard, always on duty.
But it's not all serious business. Cue up your playlist and control the music directly from the watch—perfect for keeping the beats rolling without breaking stride on a run or ride. With multi-sport modes covering everything from cycling to swimming, it's like having a coach that never complains. The interface? Smooth and intuitive. Battery life? Long enough to forget the charger for days. Whether you're crushing it at the gym, grinding at the desk, or just out and about, this gadget slots right into the rhythm of your life.
- Blood pressure tracking
- Oxygen saturation monitoring
- Bluetooth music control
- Message notifications
- Multi-sport tracking
- Heart rate monitoring
General specs
- Brand: 16Double8
- Model: ZL54CJ
- Seller: Joom
- Connectivity: Bluetooth
- Sensors: Heart rate monitor, Blood pressure sensor, Oxygen saturation sensor
- Functions: Music control, Message notifications, Multi-sport tracking
- Compatibility: Smartphones with Bluetooth
- First listed by seller: 8/25/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
16Double8 ZL54CJ Heart rate monitoring
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16Double8 ZW63 Bluetooth calling
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Health Fitness Tracker Smart Watch
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Smart Watch with Heart Rate Monitor Heart rate monitoring
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16Double8 MK66 2023 Full touch screen display
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| Brand | 16Double8 | 16Double8 | Mindrose | Tiktop2 | 16Double8 | |
| Model | ZL54CJ | ZW63 | MK66 2023 | |||
| Color | ||||||
| Rating |
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| Price | $28.71 | $29.62 | $17.89 | $34.19 | $61.05 | $11.76 |
| Seller | Joom | Joom | Sunsky | Amazon | Joom | Joom |
| Update | August 24, 2025 | August 24, 2025 | August 31, 2025 | July 18, 2025 | August 28, 2025 | August 24, 2025 |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | |||
Smart Watch with Bluetooth
Mia A.
Philadelphia, PA
September 3, 2025
as a logistics specialist, i'm always on the go and budget-conscious, so this gadget seemed like a good fit. i've been using it for a couple of weeks now, and it arrived on time, which was great. i like that it helps me stay connected and monitor my health, but i have my doubts—is it really precise? for home and garden stuff, it's fun to control music while i'm outside, but i'm not fully sold yet. overall, it's useful, but i'm keeping an eye on it.
- Pros: it pairs easily with my phone, so i get alerts for calls and messages without pulling it out, which is very handy during work or walks. the health tracking is impressive—it checks my heart and blood stats in real time, like having a little doctor on my wrist. music control is a nice touch for my gardening sessions, and the battery lasts long enough that i rarely need to charge it.
- Cons: from what i feel, the interface can be a bit tricky to navigate at first, and i'm not entirely sure about the accuracy of the health readings—i'd want to double-check with my actual doctor. it's a decent mid-ranger, but for someone cautious like me, i wish it had more reassurance on the data it provides.