Round Smart Watch with Heart Rate and Sleep Tracking
A round watch that keeps your heart rate, sleep stages and steps on one screen, and takes calls from your wrist. Glance down to see how the day went, and leave the phone in your pocket. Black mesh strap and a polished case make it look at home at the office or the gym.
Read the full descriptionDescription
A round watch that keeps your heart rate, sleep stages and steps on one screen, and takes calls from your wrist. Glance down to see how the day went, and leave the phone in your pocket. Black mesh strap and a polished case make it look at home at the office or the gym.
A sleek round smartwatch that tracks heart rate, sleep and activity and takes calls right from your wrist
- not knowing heart rate during the day
- poor or unmeasured sleep quality
- reaching for the phone for every call
- lack of daily activity tracking
Know your heart, sleep and steps without reaching for your phone
Stop guessing how you slept and how hard your heart worked today. This round watch shows it all on your wrist and handles calls, so your phone can stay in your pocket.
Heart, sleep and steps on one screen

Your heart rate, all day
The built-in sensor reads your heart rate and shows it on the round screen whenever you check. Use it during a walk, between sets at the gym or at your desk when a stressful meeting runs long. Pair it with the heart rate fitness tracker you already know and the data stays on your wrist.

Sleep you can actually read
Wear it to bed and the watch records your night in stages: deep, light and REM. In the morning the breakdown is on screen, so you can see whether a short night was mostly light sleep or a broken one. Compare a week of mornings to find what changes your rest.

Calls from your wrist
Answer, decline or dial straight from the watch using the dial pad and contacts. Your phone stays paired and in range, so you handle a quick call while your hands are full and leave the phone where it is.
Everything you need to start tracking
- Round smart watch ZL02D×1
Full round touchscreen with a glossy black case and side button
- Black stainless mesh strap×1
Magnetic buckle that holds the strap snug on the wrist
Guessing ends on your wrist

The day you could not explain
You wake up tired and cannot tell whether it was a bad night or a stressful day. Your heart raced through a meeting, and you have no idea how hard it worked. Every call means digging through a pocket or bag while the work you were doing slips away.

One glance, every answer
The ZL02D puts heart rate, sleep and steps on a round color touchscreen. A glance shows your current heart rate and daily steps. Incoming calls show up on the same face, and the dial pad and contacts sit right on your wrist.

A week of clearer mornings
After a few days of wearing it, the pattern starts to show. You see which days ran long on steps, how your sleep stages break down across the night, and when your heart stayed calm. The mesh strap settles into place, and the watch stops feeling like something new on your arm.
What to expect as you wear it
- First usePair and set up
Connect the watch to your phone, set your basic profile and confirm calls and notifications work before you rely on them.
- Week 1Learn your daily rhythm
Check heart rate and step readings across normal days. Patterns start to show, though one week is a short sample.
- Day 30Review your sleep trends
Sleep stage data builds across many nights. Compare weeks rather than single nights to see real changes in your routine.
Why this, not a basic band
| This watch | Basic step band | Phone step counter | |
|---|---|---|---|
| Heart rate sensor | — | — | |
| Sleep stage tracking | Partial | — | |
| Calls from the wrist | — | — | |
| Full color touchscreen | — | — |
Characteristics
Reviews
Questions and answers
Yes. Calls run over Bluetooth, so the phone has to be paired and within range. Once it is paired, you answer, decline or dial from the watch and leave the phone in your bag.
Use them to spot trends, not as a medical reading. The sensor gives a steady view of heart rate through the day and sleep stages across the night, which is what most people need to see a pattern. If you have a heart condition, rely on your doctor's measurements.
The case has a polished black edge and the strap is stainless mesh, so it reads as metal on the wrist. You get heart rate, sleep, steps and calls in one watch, which is the same job a separate band and a phone would split between them.
The mesh is flexible and the magnetic buckle holds it snug. Wear it just above the wrist bone for steadier heart rate readings. Fine mesh can feel stiff for the first few days until it settles to your wrist.
The packaging calls it waterproof, which covers sweat, rain and workouts. No depth or swim rating is printed on the packaging, so keep it out of the pool and skip long showers with it on.
Similar products
See all




















