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| Apple Watch Series 4 (GPS, 44MM) Space Gray Aluminum Case with Black Sport Band (Renewed) on Amazon.com |
The Apple Watch Series 4 was released by Apple in September 2018. It was the fourth generation of the Apple Watch lineup and brought several significant upgrades and new features compared to its predecessors. Here are some key features of the Apple Watch Series 4:
Design: The Series 4 featured a refined design with a larger display compared to previous models. It came in two sizes, 40mm, and 44mm, offering more screen real estate for better visibility and interaction.
Display and Watch Faces: The Series 4 introduced a new edge-to-edge display that extended to the edges of the watch face, resulting in a more immersive and visually appealing experience. It also offered new customizable watch faces with various complications and styles.
Health and Fitness: Series 4 placed a strong emphasis on health and fitness tracking. It introduced an improved accelerometer and gyroscope to provide more accurate activity tracking, including more precise calorie counting and better monitoring of workouts and movements.
ECG and Heart Rate Monitoring: One of the notable features of the Series 4 was the built-in electrical heart rate sensor, which allowed users to take electrocardiograms (ECG) directly from their wrists. This feature was the first of its kind in a consumer wearable device.
Fall Detection: Series 4 introduced a feature that could detect when the wearer took a hard fall. If a fall was detected, the watch would send an alert and offer the option to contact emergency services.
Improved S4 Chip: The Series 4 was powered by the S4 chip, which offered faster performance and improved energy efficiency compared to previous generations. This resulted in smoother app performance and better battery life.
Cellular Connectivity: Some models of the Series 4 included built-in cellular connectivity, allowing users to make calls, send messages, and stream music directly from their watches, even when their iPhones were not nearby.
The product is refurbished, fully functional, and in good condition. Backed by the 90-day Amazon Renewed Guarantee.
- Amazon-qualified vendors have professionally inspected, tested, and cleaned this pre-owned product. It is not certified by Apple.
- This product is in "Good condition". The screen has no scratches; the body shows light scratches barely visible from 12 inches away.
- This product will have a battery that exceeds 80% capacity relative to the new.
- Accessories may not be original but will be compatible and fully functional. The product may come in a generic box.
- The product will come with a SIM removal tool, a charger, and a charging cable. Headphones and SIM cards are not included.
- This product is eligible for a replacement or refund within 90 days of receipt if it does not work as expected.
- Refurbished phones are not guaranteed to maintain their waterproof seal.
It's important to note that while the Apple Watch's heart rate sensor can provide valuable information about your heart rate, it is not intended to replace professional medical advice or diagnostic tools. If you have any concerns about your heart health, it's always best to consult with a healthcare professional.
The Series 4 introduced an improved heart rate sensor compared to previous models, offering more accurate readings. It can alert you if your heart rate goes above or below a certain threshold, which can be helpful for detecting irregular heart rhythms or unusually high or low heart rates.
| Product Dimensions | 15.9 x 7.9 x 1 inches |
|---|---|
| Item Weight | 4.2 ounces |
| ASIN | B07PS9D7GW |
| Item model number | MU6D2LL/A |
| Batteries | 2 Lithium Ion batteries are required. (included) |
| Customer Reviews | 4.2 out of 5 stars |
| Best Sellers Rank | #698 in Cell Phones & Accessories) #5 in Smartwatches #73 in Smartwatch Bands #220 in Climate Pledge Friendly: Electronics |
| Is Discontinued By Manufacturer | Yes |
| OS | WatchOS |
| Wireless communication technologies | Bluetooth |
| Connectivity technologies | GPS |
| GPS | True |
| Special features | Electrocardiography, Heart rate, Accelerometer, Altimeter, Ambient light sensor, Gyro sensor, Heart rate sensor, GPS, Time Display, Phone Call, Notifications |
| Display technology | OLED |
| Other display features | Wireless |
| Color | Space Gray, Black |
| Manufacturer | Apple |
| Date First Available | March 17, 2019 |
This Apple Watch 44mm Series 4 is in used condition. It is 100% functional but will show signs of use, including scratches and dents on the product's front, back, and corners. This item will NOT come in its original packaging but will include a certified cable and power adapter. The manual is not included! Apple Watches are compatible with iPhone models 6 and up.
PACKAGE CONTENTS:
- Apple Watch 40mm Series 4
- Charging Cable
- Square Wall Socket Charging Adapter
- The item comes packaged in an Aftermarket Box.
- User Manual & Headsets are NOT included!
Regarding the Apple Watch Series 4's heart rate monitoring capabilities, it is generally well-regarded for its accuracy and continuous tracking. Many users find it beneficial for monitoring their heart rate during workouts, tracking trends over time, and receiving alerts for abnormal heart rate patterns.
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