Heart Rate Smart Bracelet with Sleep & Step Tracking
Track your heart rate, sleep and steps from one slim round watch that also takes calls. The 1.28-inch dial puts your numbers a glance away, so you train with real data and stop guessing how you slept.
Read the full descriptionDescription
Track your heart rate, sleep and steps from one slim round watch that also takes calls. The 1.28-inch dial puts your numbers a glance away, so you train with real data and stop guessing how you slept.
Track your heart rate, sleep and steps from one slim round watch that also takes calls
- Not knowing heart rate during workouts
- Poor sleep tracking
- Missing calls while your phone is away
- Forgetting daily activity goals
Track your heart, sleep and steps from one slim round watch
Stop guessing your effort and wondering how you slept. Glance at your wrist for live heart rate, sleep and steps, and take calls without reaching for your phone.
Four things you check, one glance away

Live heart rate on your wrist
The heart rate sensor reads your pulse during a session and shows it on the dial. The zone bar marked Aerobic tells you where your effort sits, so you can hold a steady pace instead of guessing. Wrist sensors respond more slowly to sharp intervals, so the bar works best for steady efforts.

Sleep and steps, one glance
Sleep monitoring runs overnight and the pedometer counts steps through the day. The dial shows steps and calories beside the date, so the whole day sits on one screen. Check the numbers in the morning and see how the last day and last night stacked up.

Calls on your wrist
Bluetooth calling lets you take a call from your wrist. Press the side crown to answer and keep the phone in your bag on the commute. Pair the watch with your phone first, because calls only come through once the Bluetooth link is up. If calls matter most in a crowd, wireless earbuds are the other route.
Figures you see on the dial
- 1.28inch round HD touchscreen
- 90 BPMheart rate shown on dial with Aerobic zone
- 22795steps shown on the dial
Set up in three steps
- 1Snug it above the wrist bone
Fit the strap so the sensor sits just above the wrist bone. A loose fit lets it move, which can make heart rate readings jump.
- 2Pair it with your phone
Connect over Bluetooth first. Calls and phone-linked data only work once the pairing is complete.
- 3Wake it with the side crown
Press the side crown to light the 1.28-inch display. Your time, steps and heart rate are one glance away.
Guessing ends on your wrist

Training in the dark
Your workout feels strong, but the effort is a guess. You push hard on a run, ease off on a hunch, and never know whether the session actually counted. Sleep is the same story: you wake up tired and cannot say why.

One watch, every hour
The ZL50 puts heart rate, sleep, steps and calls on one 1.28-inch round screen. Glance down and the zone bar shows where your effort sits, the dial shows steps and calories, and a call comes through without the phone. Think of it as a fitness tracker watch that also takes calls.

Pick your colour, own your day
Matte black, silver, blush pink or gold. The matte case sits flat, the silicone strap bends easily, and the brushed silver buckle snaps closed with a firm click. It is a watch you can wear to the gym, on the street and to bed, which is the whole point.
What the first weeks look like
- First usePair it and check your pulse
Connect the watch to your phone and check a live heart rate reading on the dial. Note your resting number before your next workout to get a baseline.
- Week 1Learn your zones and sleep
Wear it through workouts and at night. Heart rate zones and sleep data start to make sense as they show up in your routine.
- 30 daysTrack a steady routine
After a month of regular wear, compare steps, sleep and workout effort week to week. The trends come from consistent wear.
Core tracking without the premium price tag
| ZL50 | Phone-only fitness app | Premium smartwatch | |
|---|---|---|---|
| Heart rate on the wrist | Yes | No | Yes |
| Sleep tracking | Yes | Partial | Yes |
| Steps and calories on the dial | Yes | Partial | Yes |
| Bluetooth calls from the wrist | Yes | No | Yes |
| Works without carrying your phone | Yes | No | Partial |
Characteristics
Reviews
Questions and answers
For steady runs, rides and gym sessions, the wrist reading gives you a usable picture of effort, and the Aerobic zone bar shows where you sit. Sharp intervals can show up late because wrist sensors respond more slowly to fast changes. If you need chest strap detail for race-day data, a chest strap is still the better tool for that job.
The 1.28-inch round HD touchscreen shows heart rate, steps, calories and the date at a glance. One press of the side crown wakes the display, so you can check a number mid-stride without stopping.
Yes, once it is paired with your phone over Bluetooth. Calls are answered from the watch, so the phone can stay in your bag. Pair it first and place a test call before you rely on it on the go.
The silicone strap bends easily and sits soft against the skin. Wear it snug enough that the sensor does not slide, but loose enough to sleep comfortably. Give it a night or two to settle before you judge the fit.
It is an affordable tracker with a brushed metal buckle and a silicone strap. You get heart rate, sleep, steps and Bluetooth calls in one watch, which is the core of what premium smartwatches charge more for. Buying a separate tracker and a phone app adds up quickly, so one device on your wrist is the cheaper route.
Similar products
See all






