Apple

Apple MG143LL/A-cr Watch Series 6 40mm Blue (Renewed)

4.1 (1078 reviews)

A renewed Apple Watch Series 6 with always-on display, blood oxygen monitoring, ECG, and GPS in a sleek 40mm blue case.

$111.68*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Apple Watch Series 6 in 40mm blue aluminum brings together Apple's most significant health and fitness features in a design that still looks and feels modern. The headline health capabilities include a blood oxygen (SpO2) sensor for on-demand and background oxygen level readings, an electrical heart rate sensor that can generate a single-lead ECG, and an optical heart sensor for continuous heart rate monitoring. Combined with fall detection and Emergency SOS, the Series 6 serves as both a fitness companion and a safety device on the wrist. The always-on Retina display is a practical daily convenience, keeping the time, complications, and workout metrics visible at a glance without requiring the wrist-raise gesture that earlier models depended on.

As a GPS model, this watch handles location tracking for outdoor runs, walks, and cycling independently, but relies on a paired iPhone for cellular functions like calls and texts when away from known Wi-Fi networks. Apple Music streaming, podcast playback, and audiobook listening are all available directly from the watch when connected to Wi-Fi or with downloaded content. The renewed condition means the watch has been inspected and tested to function like new, with the blue aluminum case and Deep Navy Sport Band providing a distinctive look. Buyers should note that as the Series 6 ages, software support will eventually wind down, and battery health on renewed units may not match a factory-fresh watch — but for the current price, the feature set remains difficult to match.

Key Features

LEAVE YOUR PHONE IN YOUR POCKET: Apple Watch Series 6 GPS Model lets you call, text, and get directions from your wrist, while leaving your phone in your pocket. It offers multiple connectivity options, including: Bluetooth, Wi-Fi, and NFC to suit all of your possible needs.

ALWAYS-ON RETINA DISPLAY: You no longer need to raise your wrist or touch the screen to see the time or other information on your watch face, because the display never sleeps. All you need to do is glance to find the time or your workout metrics right there where you want them.

ECG ON YOUR WRIST: With the ECG app, Apple Watch Series 6 is capable of generating an ECG similar to a single-lead electrocardiogram. It’s a momentous achievement for a wearable device that can provide data for doctors and peace of mind for you wherever may be during the day.

WORKOUTS THAT DON'T QUIT: Cycling, yoga, swimming, high-intensity interval training.the list goes on. You me it, Apple Watch measures it. Set workout-specific goals, see full summaries when you’re done, and track how you’re trending over time in the Activity app on your iPhone.

GET LOST IN YOUR MUSIC: With Apple Music on your wrist, you’ve got 60 million tracks of musical motivation to take you places. You can also catch up on the latest podcasts or listen to an audiobook if that's your thing. Stream everything you need right from your watch, even without your phone.

Specifications

Case Size
40mm
Case Material
Blue Aluminum
Band
Deep Navy Sport Band
Display
Always-On Retina
Health Sensors
Blood Oxygen (SpO2), ECG, Optical Heart Rate
Safety Features
Fall Detection, Emergency SOS
Connectivity
GPS, Bluetooth 5.0, Wi-Fi
NFC
Yes (Apple Pay)
Activity Tracking
Multiple workout modes, Activity rings
Condition
Renewed

Pros & Cons

👍 Pros

  • Always-On Retina display shows time and workout metrics without raising your wrist or tapping the screen
  • Blood oxygen sensor and ECG app provide meaningful health monitoring directly from the wrist
  • Always-on Retina display shows time and complications without needing to raise or tap the watch
  • Blood oxygen sensor and ECG app provide advanced health monitoring typically found in dedicated medical devices
  • Tracks a wide range of workout types including cycling, swimming, yoga, and high-intensity interval training
  • Built-in GPS accurately tracks outdoor workouts and routes without requiring your iPhone
  • Renewed pricing makes the Series 6 feature set accessible at a significant discount over retail
  • Built-in GPS accurately tracks outdoor routes and distances without requiring your iPhone
  • Renewed pricing makes Series 6 features accessible at a lower cost than buying new

👎 Cons

  • GPS-only model cannot make calls or send texts without an iPhone nearby or a Wi-Fi connection
  • GPS-only model requires a nearby iPhone for calls, texts, and data when away from Wi-Fi
  • As a renewed unit, battery health may be somewhat reduced compared to a brand-new watch
  • As a renewed product, battery health may be somewhat reduced compared to a brand-new unit
  • 40mm case size has a smaller display area that may feel cramped for users with larger wrists
  • The 40mm case size may feel small for users with larger wrists or those who prefer bigger displays
  • No longer receives the latest watchOS updates, which may limit future app compatibility
  • Series 6 no longer receives the latest watchOS updates, which may limit future app compatibility

Frequently Asked Questions

A renewed Apple Watch has been inspected, tested, and restored to work and look like new by a qualified refurbisher. It may show minimal cosmetic wear but is fully functional.
This is a GPS-only model. It connects to your iPhone via Bluetooth and Wi-Fi for calls, texts, and notifications, but it does not have independent cellular capability.
Renewed means the watch has been professionally inspected, tested, and cleaned to function and look like new. It may show minimal cosmetic signs of previous use and typically comes with a limited warranty rather than Apple's standard warranty.
No, this is the GPS-only model. It connects to your iPhone via Bluetooth and can use Wi-Fi independently, but it does not have its own cellular connection for calls or data when away from your phone.
This model features a blood oxygen (SpO2) sensor, an ECG app capable of generating a single-lead electrocardiogram, an optical heart rate sensor, and fall detection with Emergency SOS.
The always-on Retina display does use additional power, but Apple designed the Series 6 to still deliver approximately 18 hours of battery life with the feature enabled. You can also disable it in settings to extend battery life.
Yes. The Apple Watch Series 6 has a water resistance rating of WR50, meaning it is suitable for shallow-water activities like pool swimming, though it should not be used for scuba diving or high-velocity water sports.
Yes, with Apple Music you can stream over 60 million songs directly from the watch when connected to Wi-Fi, without needing your iPhone nearby.
This is the 40mm version with a blue aluminum case, paired with a Deep Navy Sport Band.
Yes. The Series 6 includes a built-in blood oxygen (SpO2) sensor that can take on-demand readings and periodic background measurements throughout the day.