Smartwatch mit EKG, Herzfrequenz und Blutdruckmessung Zorenza

Fitness smartwatch with color display — IP67, USB charging, 10-day battery life

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$100.00 $126.00
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Smartwatch mit EKG, Herzfrequenz und Blutdruckmessung Zorenza
Fitness smartwatch with color display — IP67, USB charging, 10-day battery life

— Fitness smartwatch with color display

Fitness smartwatch with color display — IP67, USB charging, 10-day battery life

Achieve cleaner solder joints, faster heat transfer, and reliable electronic repairs — engineered for the bench, trusted on the line.

4.5 (Based on 312 reviews)
ColorBlack
$100.00 $126.00 You save $26.00
• USB charging cable
• 100g Capacity
• Fast Wetting
• PCB Safe
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SECURE PAYMENTS

— KEY BENEFITS

Why professionals choose this flux

01

Benefit Title

The optical heart rate sensor (PPG) continuously measures your heart rate, while steps and calories can be read directly on the high-contrast color touchscreen.

03

Reliable Results

Plug the bracelet directly into any USB-A port — no separate cable needed, fully charged in about an hour.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_key_benefits.centre_ring_image
02

Benefit Title

Once charged, the watch accompanies you for a week or more — no daily charging, no interrupting your routine.

04

Anti-Oxidation

Thanks to the IP67 protection class, the watch easily withstands rain, sweat, and splashes, remaining reliably ready for use during sports and everyday life.

Benefit Title
Reliable Results
Benefit Title
Anti-Oxidation
01

Benefit Title

The optical heart rate sensor (PPG) continuously measures your heart rate, while steps and calories can be read directly on the high-contrast color touchscreen.

Benefit Title
02

Reliable Results

Plug the bracelet directly into any USB-A port — no separate cable needed, fully charged in about an hour.

Reliable Results
03

Benefit Title

Once charged, the watch accompanies you for a week or more — no daily charging, no interrupting your routine.

Benefit Title
04

Anti-Oxidation

Thanks to the IP67 protection class, the watch easily withstands rain, sweat, and splashes, remaining reliably ready for use during sports and everyday life.

Anti-Oxidation

— HOW IT WORKS

Perfect soldering in four steps

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_1_image 1

Apply Flux

While running, track your heart rate and steps in real time on the color display — no smartphone, no detours.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_1_image

Apply Flux

While running, track your heart rate and steps in real time on the color display — no smartphone, no detours.

Heat Component

The watch automatically analyzes your sleep phases overnight, so you can see at a glance in the morning how restful your night really was.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_2_image 2
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_2_image

Heat Component

The watch automatically analyzes your sleep phases overnight, so you can see at a glance in the morning how restful your night really was.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_3_image 3

Apply solder

In everyday work life, the watch discreetly counts your steps and reminds you to stay active — compact on your wrist, without being intrusive.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_3_image

Apply solder

In everyday work life, the watch discreetly counts your steps and reminds you to stay active — compact on your wrist, without being intrusive.

Complete Connection

Whether in the rain or during intense training: the IP67 water resistance ensures you can simply keep the watch on without worrying.

Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_4_image 4
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_how_it_works.step_4_image

Complete Connection

Whether in the rain or during intense training: the IP67 water resistance ensures you can simply keep the watch on without worrying.

APPLICATIONS

Designed for precision electronics

Achieve cleaner solder joints, faster heat transfer, and reliable electronic repairs — engineered for the bench, trusted on the line.

PCB Repair

PCB Repair

Pulse and calorie consumption are continuously recorded during training so that you can track your progress effectively.

Micro Soldering

Micro Soldering

Automatic sleep tracking provides you with a clear daily overview of the quality and duration of your rest.

Connector Repair

Connector Repair

Step counters and activity data motivate you to stay active regularly, even during your office routine.

Circuit Assembly

Circuit Assembly

Thanks to direct USB charging and a compact design, the watch charges anywhere — no charging cable to forget.

Applications

Designed for precision electronics

Before & After

Compare the results

Without Flux

  • Poor wetting
  • Weak joints
  • Surface oxidation
  • Frequent rework
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_before_after.without_card_image

With Flux

  • Smooth flow
  • Strong bond
  • Clean surface
  • Reliable joint
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_before_after.with_card_image
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_before_after.without_card_image
Without Flux
Fitness-Smartwatch mit Farbdisplay — IP67, USB-Ladung, 10 Tage Akku — technical_before_after.with_card_image With Flux

Without Flux

  • Poor wetting
  • Weak joints
  • Surface oxidation
  • Frequent rework

With Flux

  • Smooth flow
  • Strong bond
  • Clean surface
  • Reliable joint
The numbers behind the paste
Technical Specifications

The numbers behind the paste

The fitness smartwatch combines precise sensors with long battery life and robust protection in a compact case made of plastic and silicone.

Net Weight

Net Weight

Heart rate measurement (PPG), activity & sleep tracking

Melting Point

Melting Point

60 °C

Application

Application

PCB Soldering

Formula

Formula

Low Residue, No-Clean

Usage

Usage

100 g Electronics Repair

Halide Content

Halide Content

< 0.1% (RoHS)

Net Weight

Net Weight

Heart rate measurement (PPG), activity & sleep tracking

Melting Point

Melting Point

60 °C

Application

Application

PCB Soldering

The numbers behind the paste
Formula

Formula

Low Residue, No-Clean

Usage

Usage

100 g Electronics Repair

Halide Content

Halide Content

< 0.1% (RoHS)

Social Proof

Our customer reviews

4.5
Based on 312 reviews
5
78%
4
15%
3
5%
2
1%
1
1%
Reviewer
Reviewer
Reviewer
Reviewer
Gottlob S.

Gottlob S.

Verified Buyer · 5 days ago

I have been wearing it daily for a week now and am really surprised at how well the heart rate sensor works. The display is also very easy to read even in sunlight.

Hans-Willi U.

Hans-Willi U.

Verified Buyer · 2 weeks ago

Plugging directly into the USB port may sound unusual at first, but it is actually much more convenient than looking for an extra cable. Charging on the laptop takes less than an hour.

Heidrun B.

Heidrun B.

Verified Buyer · 1 month ago

I charge it about once a week — that's perfect for me. Sleep tracking works reliably, and the morning reports are really informative.

Katerina W.

Katerina W.

Verified Buyer · 3 months ago

Just leave it on while jogging in the rain — no problem. After three months, it still looks like new, the band fits comfortably, and the water resistance delivers as promised.

FAQ

Questions and Answers

Your order usually arrives within 8–15 business days. As soon as your package is on its way, you will receive an email from us with a tracking link so you can see exactly where your order is.

Yes, absolutely! We ship all orders for free – no matter how much you order.

Of course! You have 30 days to return your order. Just contact our customer service and we will send you all the information for the return. It's simple and quick.

You can easily pay with PayPal, Klarna, credit card (Visa, Mastercard, American Express), Google Pay, or Apple Pay. All payments are processed through a secure, encrypted connection (SSL).

Yes, 100%! We use state-of-the-art SSL encryption and strictly comply with the GDPR. Your data is used exclusively for your order and is never shared.