Smartwatches & ECG: What You Should Know Before Buying

Are you searching for a smartwatch with an accurate monitor of your heart health? There are various smartwatch options with ECG features available in 2025. A lot of the best smartwatches boast ECG options that can offer long-term health tracking. This guide will identify the best ECG smartwatches available in India in 2025, including their health initiatives and how to use their features to track your overall health and fitness. 

ECG smartwatches provide an excellent option for helping you meet fitness ventures, find timely interventions for health conditions, and find important information related to your health.

What is the ECG function of smartwatches? 

The ECG (electrocardiogram) function measures the electrical impulses in your heart so that you can diagnose medical conditions like atrial fibrillation (AFib) and irregular heart rhythms. Whereas your normal heart sensor can determine how quickly your heart beats and provide you an approximate heart rate, smartwatches with ECG sensors will give you medical-grade data from your wrist while using standard heart sensors.

They are ideal for:

Fitness enthusiasts

People monitoring cardiovascular health

Seniors or individuals with a family history of heart issues

Best ECG Smartwatches in India (2025)

Here are the top ECG smartwatches in India, combining style, health tracking, and smart features:

S.No.

Top Products

Feature

Rating

01

Apple Watch Series 9 [GPS + Cellular 41mm] Smartwatch 

offers a super-bright display

4.5

02

Samsung Galaxy Watch Ultra

equipped with dual GPS 

4.2

03

Vibez by Lifelong Xena Smartwatch for Women 

equipped with an ECG tracker

3.5

04

boAt Storm Call 3 w/TBT Navigation

With the 1.83 HD display, experience crisp resolution with vibrant colours.

4.0

05

Noise Pulse 4 Max Smart Watch with AI Create 

Android-compatible smartwatch

4.0

1. Apple Watch Series 9 [GPS + Cellular]—Best Premium ECG Smartwatch

The Apple Watch Series 9 is a sophisticated smartwatch that incorporates heart rate tracking, electrocardiogram monitoring, sleep tracking, and an OLED display but also uses a brand new S9 chip and has an always-on Retina display. It is intelligent and great-looking but also suitable to wear in water (50 m) for all fitness and outdoor pursuits.

Best for: iPhone users who want a unique, reliable, all-rounder smartwatch with ECG.

Key Features:

ECG, heart rate & sleep monitoring

50 m water resistance

64 GB storage & LTE connectivity

Always-on OLED Retina display

WatchOS with AI-powered features

Pros:

Medical-grade ECG readings

Stylish stainless steel case

Seamless iPhone integration

2. Samsung Galaxy Watch Ultra—Best Android ECG Smartwatch

The Galaxy Watch Ultra is constructed for an on-the-move lifestyle, with ECG and blood pressure tracking, a battery life of up to 100 hours, tough military-grade durability, dual GPS, a 10 ATM water resistance rating, and more... perfect for an outdoor lifestyle!

Best for: Android users and outdoor fitness enthusiasts looking for improved durability and accurate health tracking.

Key Features:

ECG, BP, heart rate monitoring

Dual GPS, 10 ATM water resistance

Quick Access Button & SOS siren

Titanium case with sapphire glass

3 nm processor for smooth performance

Pros:

Great for extreme conditions

Long-lasting battery

Comprehensive health insights

3. Vibez Xena Smartwatch for Women—Affordable ECG Smartwatch

Vibez Xena is a fashionable timepiece that is designed for women's health and wellness. It includes ECG and blood pressure monitoring. The great-looking metal finish and secure, durable strap provide a stylish and dependable fitness watch that is sweat resistant for active support. 

Best for: Women wanting a smartwatch with full health tracking features at a stylish but affordable price.

Key Features:

ECG, PPG, and BP monitoring

Stylish HD display

Sweat & splash resistant

10-day battery life

Pros:

Lightweight and stylish

Full-body health tracking

Affordable ECG option

4. boAt Storm Call 3—Budget Smartwatch with Fitness Tracking

While it is not a full ECG machine, the boAt Storm Call 3 offers an activity tracker, live sports scores, and a 1.83" display while supporting Bluetooth calling and custom watch faces, all for a decent price. This is a viable choice if you're a casual user who wouldn't want or pay for a pricey fitness buddy. 

Best for: Users looking for an everyday smartwatch at an affordable price with the basic health features and casual sporty style.

Key Features:

Bluetooth calling

Live sports updates

1.83" HD display

Activity tracking & step count

Pros:

Sleek, modern design

Great for casual fitness tracking

Value for money

Cons:

No ECG or advanced heart features

Battery life could be better

5. Noise Pulse 4 Max—AI Smartwatch with Advanced Health Features

The Noise Pulse 4 Max is not your average smartwatch, and it has AI-powered watch faces along with some key health features, including heart rate, SpO2, and sleep tracking functions. It offers IP68 water resistance and GPS tracking, making it stylish for fitness tracking.

Best for: Android users wanting AI features and complete health tracking under budget.

Key Features:

AI-generated watch faces

Heart rate, SpO₂, sleep tracking

IP68 water resistance

1.96” display with Bluetooth calling

Pros:

Sleek & lightweight

Feature-rich for the price

Built-in GPS

Why Get a Smartwatch with ECG Tracking?

The ECG smartwatch could change your health in many ways, including:

Detection: Identify abnormal heart rhythms, such as AFib, before they turn into bigger problems.

Monitoring: Get live heart data while at work or working out.

Awareness: Track your wellness targets on a daily basis

Information on the go: Keep ECG-like readings with you in case you need to take action.

Facilitates medical oversight: Share your data with your clinician for improved diagnosis

Heart Rate vs. ECG in Smartwatches—What’s the Difference?

Heart rate monitoring shows your beats per minute (BPM) via the optical sensor.

ECG tracking records the electrical activity of your heart to identify any irregularities, like arrhythmias.

ECG is more advanced and likely has more value to those looking for clinical-level heart monitoring in addition to fitness features.

Final Thoughts: Which ECG Smartwatch Should You Buy in 2025?

The best ECG-enabled health track option for you would be the Apple Watch Series 9 or Samsung Galaxy Watch Ultra. If you want plain, cheap health tracking, then the Vibez Xena or Noise Pulse 4 Max, respectively. Whether you are tracking your heart health or wanting smarter fitness tracking, ECG smartwatches in India offer meaningful forms of health management to monitor your body intelligently.