Smartwatch 2026: Ultra Series 8 vs ECG — Which to Choose?

Smartwatches have invaded our wrists, and for good reason: they centralize health, sports, notifications, and navigation into a single device. But with so many models, how do you choose? We've compared our two bestsellers to help you make the right choice.

The Ultra Series 8: The High-End All-Rounder

The Ultra Series 8 Smartwatch is designed for those who want it all: sports, health, Bluetooth calls, and style. It's the ideal watch if you're looking for a comprehensive connected device for your daily life.

Its strengths:

  • 📞 Direct Bluetooth calls from your wrist — without taking out your phone
  • 🏃 100+ tracked sports — running, swimming, yoga, HIIT, and more
  • 🗺️ Integrated GPS — precise tracking of your routes
  • 💧 IP68 resistance — usable in the pool
  • 🔋 7-day battery life — recharge once a week
  • 🖥️ Large Always-On HD screen — readable even in summer sun

For whom? Active sports enthusiasts, professionals who want to stay reachable, and anyone looking for a comprehensive and elegant tech companion.

The ECG Watch: The Cardiac Health Specialist

The ECG Smartwatch focuses entirely on medical precision. If your priority is to monitor your cardiovascular health daily, this is the one for you.

Its strengths:

  • ❤️ Precise clinical ECG — detects cardiac anomalies and generates a readable report from the app
  • 🩸 Blood oxygenation (SpO2) — continuous monitoring
  • 🩺 Blood pressure — simplified daily measurement
  • 😴 Advanced sleep analysis — phases, quality, personalized recommendations
  • 🚨 Automatic heart alerts — notification if abnormal rhythm

For whom? People who want to monitor their cardiac health, active seniors, athletes who want precise medical data, and anyone with a history of cardiovascular issues.

Quick Comparison

Feature Ultra Series 8 ECG Watch
Integrated GPS ✅ Yes ⚠️ Assisted
Bluetooth Calls ✅ Yes ✅ Yes
Medical ECG ⚠️ Basic ✅ Clinical
SpO2 / Oximetry ✅ Yes ✅ Yes
Blood Pressure ⚠️ No ✅ Yes
Tracked Sports ✅ 100+ ✅ 50+
Battery Life ✅ 7 days ✅ 5-7 days
Water Resistance ✅ IP68 ✅ IP67

Our Verdict

👉 Choose the Ultra Series 8 if you're an active, connected individual looking for a versatile watch for daily life and summer adventures.

👉 Choose the ECG Watch if your priority is precise medical monitoring of your cardiac health — particularly blood pressure, SpO2, and arrhythmia detection.

Equip Yourself for Summer

Both models are available on Best'n Deal with fast delivery in France. Use code BESTDEAL10 for 10% off your first order.