60th Anniversary SaleEnds Sunday. Exclusions, terms and conditions apply.Shop now

Skip to content Go to Product Search

Your storeFind a store

Deal of the Day

My Best Buy Memberships

Best Buy Business

Main Content

Deals
Support & Services
Brands
Shop

Deals
Support & Services
- Visit our Support Center
- Repair & Tech Services
- Remote Support
- Manage an Appointment
- Trade In Your Device
- Check Repair Status
- Best Buy Brands Support
- Best Buy Business Professional Services
- Learn About Services by Category
- Protection & Support Plans
- Additional Services
Brands
- Apple
- ASUS
- Beats
- Dell
- HP
- Lenovo
- LG
- Meta
- Nintendo
- Pokémon
- Samsung
- Sony
- All Brands
- Best Buy Brands
Discover
Shop
- TV & Home Theater
  - Explore TV & Home Theater
  - Learn About RGB LED TVs
  - TVs by Size
  - TVs by Brand
  - TVs by Type
    - All Televisions
    - Top TV Deals
    - TVs Under $500
    - Learn About RGB LED TVs
    - OLED TVs
    - Smart TVs
    - 4K TVs
    - QLED TVs
    - Frame TVs
    - Mini-LED TVs
    - Gaming TVs
    - Services & Support
      - TV Mounting & Installation
  - All Sound Bars & Home Audio
    - Explore Sound Bars & Home Audio
    - Sound Bars
    - Home Theater & Stereo Systems
    - Speakers
    - Receivers & Amplifiers
    - Premium Audio
    - Services & Support
      - TV & Home Theater Services
  - Projectors & Screens
  - Blu-ray & DVD Players
  - Streaming Devices
  - Home Theater Accessories
  - Premium TV & Home Theater
  - Deals & Outlet
  - Services & Support
  - Best Buy for Business
  - Featured
- Computers & Tablets
- Appliances
  - Explore Appliances
  - Major Kitchen Appliances
  - Small Kitchen Appliances
  - Luxury Kitchen Appliances
  - Washers & Dryers
  - Vacuums & Floor Care
  - Heating, Cooling & Air Quality
  - Appliance Packages
  - Shop by Brand
  - Small Space Appliances
  - Appliance Parts & Accessories
  - Deals & Outlet
  - Services & Support
    - Delivery, Installation & Repair
    - My Best Buy Memberships
  - Featured
- Small Kitchen Appliances
- Video Games
- Cell Phones
- Headphones
- Home Audio & Speakers
- Music, Movies & TV Shows
- Cameras, Camcorders & Drones
  - Explore Cameras, Camcorders & Drones
  - Cameras & Lenses
  - Action Cameras & Camcorders
  - Content Creator Gear
  - Camera Accessories
  - Drones
  - Binoculars, Telescopes & Optics
  - Shop by Brand
  - Deals & Outlet
    - Camera, Camcorder & Drone Deals
    - Cameras, Camcorders & Drones Outlet
  - Featured
    - Shop with a Camera Expert
- Wearable Technology
  - Explore Wearable Technology
  - Apple Watch
  - Samsung Galaxy Smartwatches
  - Smartwatches
  - Fitness Trackers & Accessories
  - Smart Rings
  - Smart & AI Glasses
  - Headphones
  - Virtual Reality
  - Shop by Brand
  - Wearable Technology Accessories
  - Deals & Outlet
    - Wearable Technology Deals
    - Wearable Technology Outlet
  - Featured
    - Apple Watch Series 11
- Fitness, Sports & Outdoors
  - Explore Fitness, Sports & Outdoors
  - Exercise & Fitness Equipment
  - Water Sports Equipment
  - Sports Gear & Equipment
  - Kids' Sports & Outdoor Play
  - Camping Gear
  - Electric Transportation
  - Biking
  - Game Room
  - Yard Games
- Sports Fan Shop
- Health, Wellness & Personal Care
  - Explore Health, Wellness & Personal Care
  - Home Health Care
  - Personal Care & Beauty
  - Workout Recovery
  - Eyewear
  - Baby
  - Wearable Tech
  - Contrast Therapy: Hot & Cold Therapy
  - Exercise & Fitness Equipment
  - Muscle Pain Relief & Workout Recovery
  - Ear Care
  - Deals & Outlet
  - Services & Support
    - Shop with a Fitness Expert
- Home, Furniture & Office
- Smart Home, Security & Wi-Fi
  - Explore Smart Home, Security & Wi-Fi
  - Wi-Fi & Networking
  - Security Cameras & Surveillance
  - Smart Doorbells
  - Smart Door Locks
  - Home Security Systems
  - Smart Speakers & Displays
  - Smart Lighting
  - Smart Thermostats
  - Smart Plugs & Outlets
  - Smart Devices
  - Deals & Outlet
    - Smart Home, Security & Wi-Fi Deals
    - Smart Home, Security & Wi-Fi Outlet
  - Services & Support
  - Featured
    - Smart Home Tips & Tricks
    - Home Wi-Fi Networking Tips
- Outdoor Living
  - Explore Outdoor Living
  - Grills & Outdoor Cooking
  - Outdoor Kitchens
  - Outdoor Heating
  - Outdoor Power Equipment
  - Outdoor Home Theater
  - Outdoor Lighting
  - Patio Furniture
  - Lawn & Garden
  - Generators & Backup Power
  - Sheds & Outdoor Storage
  - Deals & Outlet
    - Outdoor Living Deals
    - Outdoor Living Outlet
  - Services & Support
  - Featured
- Electric Transportation
  - Explore Electric Transportation
  - Electric Bikes
  - Electric Scooters
  - Hoverboards
  - Electric Car Chargers
  - Kids' Scooters & Ride-Ons
  - Safety Gear & Accessories
  - Deals
    - Electric Transportation Deals
  - Featured
- Car Electronics & GPS
  - Explore Car Electronics & GPS
  - Car Audio
  - Auto Care & Cleaning
  - Auto Tools & Equipment
  - Car Security & Convenience
  - Back-Up & Dash Cameras
  - Electric Car Chargers
  - GPS Navigation
  - Marine & Powersports
  - Installation Parts & Accessories
  - Deals & Outlet
    - Car Electronics Deals
    - Car Electronics & GPS Outlet
  - Services & Support
    - Car Electronics Professional Installation
    - My Best Buy Memberships
- Toys, Games & Crafts
  - Explore Toys, Games & Crafts
  - Toys by Type
  - Toys by Age
  - Games, Puzzles & Cards
  - Arts & Crafts
  - Crafting Technology
  - Collectibles
  - Shop by Character
  - Shop by Brand
  - Deals & Outlet
  - Featured
- Collectibles & Memorabilia
Account
Order Status
Recently Viewed
Saved Items
Trade-In
Top Deals
Deal of the Day
Gift Ideas
My Best Buy Memberships
Credit Cards
Gift Cards
Best Buy Business

Best Buy
Wearable Technology
Smartwatches & Accessories
All Smartwatches
Product Details

“Does this Apple Watch Series 4 have a EKG sensor?”

Asked by Jack 6 years ago

Answer This Question

See all questions & answers

Apple Watch Series 4 (GPS) 40mm Space Gray Aluminum Case with Black Sport Band - Space Gray Aluminum - (2018)-Left_Standard

User rating, 4.9 out of 5 stars with 7682 reviews.

0 Answers

Visit our Support Center
Check your Order Status
Shipping, Delivery & Store Pickup
Returns & Exchanges
Price Match Guarantee

Order & Purchases

Check Order Status
Shipping, Delivery & Pickup
Returns & Exchanges
Price Match Guarantee
Product Recalls
Trade-In Program
Gift Cards

Payment Options

My Best Buy® Credit Card
Pay Your Bill at Citibank
Lease to Own
Buy Now, Pay Later
Best Buy Business Financing

Support & Services

Visit our Support Center
Shop with an Expert
Schedule a Service
Manage an Appointment
Protection & Support Plans
Haul Away & Recycling
Contact Us

Rewards & Membership

My Best Buy Memberships
View Points & Certificates
Member Offers

Partnerships

Sell on Best Buy Marketplace
Advertise with Us
Affiliates: Creators & Publishers
Best Buy Health
Best Buy Education
Best Buy Business
Partner+

About Best Buy

Corporate Information
Careers
Corporate Responsibility
Sustainability

Sign in or Create Account

Get the latest deals and more.

Email Address

Best Buy appLearn more ›

How was your experience?

Best Buy Canada

Accessibility Terms & Conditions Privacy Interest-Based Ads State Privacy Rights Health Data Privacy Do Not Sell/Share My Personal Information Limit Use of My Sensitive Personal Information Targeted Advertising Opt Out CA Supply Chain Transparency Act

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.