Apple
Apple MNW23LL/A Watch Series 8 GPS Cellular 45mm Renewed
★★★★★
The Apple Watch Series 8 in 45mm cellular brings ECG, crash detection, and standalone connectivity to your wrist — renewed pricing makes Apple's most complete health-focused smartwatch genuinely accessible.
$163.75*
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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
Key Features
WHY APPLE WATCH SERIES 8 — Your essential companion for a healthy life is now even more powerful. Advanced sensors provide insights to help you better understand your health. New safety features can get you help when you need it. The bright, Always-On Retina display is easy to read, even when your wrist is down.
CELLULAR CONNECTIVITY — Send a text, make a call, and stream music without your iPhone, even while traveling internationally. Use Family Setup to manage Apple Watch for family members who don’t have an iPhone.
EASILY CUSTOMIZABLE — Available in a range of sizes and materials, with dozens of bands to choose from and watch faces with complications tailored to whatever you’re into.
INNOVATIVE SAFETY FEATURES — Crash Detection and Fall Detection can automatically connect you with emergency services in the event of a severe car crash or a hard fall. And Emergency SOS provides urgent assistance with the press of a button.
ADVANCED HEALTH FEATURES — Temperature sensing is a breakthrough feature that provides deep insights into women’s health. Keep an eye on your blood oxygen. Take an ECG anytime. Get notifications if you have an irregular rhythm. And see how much time you spent in REM, Core, or Deep sleep with Sleep Stages.
SIMPLY COMPATIBLE — It works seamlessly with your Apple devices and services. Unlock your Mac automatically. Find your devices with a tap. Pay and send money with Apple Pay. Apple Watch requires an iPhone 8 or later with the latest iOS version.
INCREDIBLE DURABILITY — Tougher than tough. It’s crack resistant, IP6X-certified dust resistant, and swimproof with WR50 water resistance.
A POWERFUL FITNESS PARTNER — The enhanced Workout app gives you new ways to train, and advanced metrics for more information about your workout performance. And Apple Watch comes with three months of Apple Fitness+ free.
APPS ON YOUR WRIST — With access to tens of thousands of apps on the App Store right on your wrist, Apple Watch is the perfect personal device for whatever you love to do.
LEGAL DISCLAIMERS — This is a summary of the main product features. See below to learn more.
Specifications
Model
MNW23LL/A
Case Size
45mm
Case Material
Graphite Stainless Steel
Band
Midnight Sport Band (M/L)
Condition
Renewed (refurbished)
Operating System
watchOS
Storage
32GB
Connectivity
Cellular (LTE), GPS, Bluetooth 5.0, Wi-Fi
Display
Always-On Retina, 45mm
Water Resistance
WR50 (50 meters)
Dust Resistance
IP6X certified
Health Sensors
ECG, Blood Oxygen, Wrist Temperature, Heart Rate, Fall Detection, Crash Detection
Dimensions
1.77 x 1.5 x 0.42 inches
Item Weight
5 ounces
Pros & Cons
👍 Pros
- Cellular independence means calls, texts, and music work without the iPhone present — genuinely useful for runs, gym sessions, and leaving your phone behind
- Temperature sensor and Crash Detection are Series 8-exclusive hardware features not available on earlier models or via software updates
- 45mm Always-On Retina display is consistently readable in direct sunlight without raising your wrist
- WR50 water resistance and IP6X dust certification cover swimming, sweating, and dusty environments without needing to remove the watch
- 32GB onboard storage allows offline music and podcast downloads for workouts without a phone
👎 Cons
- Renewed condition means battery health may be below 100% — Apple Watch batteries degrade with charge cycles, and this watch could be 1–3 years old; check seller disclosure on battery health
- Graphite stainless steel case adds meaningful weight versus the aluminum Series 8 — the 45mm SS case is noticeably heavier on the wrist for all-day wear
- Cellular functionality requires an ongoing monthly carrier plan fee on top of the purchase price
- watchOS is iPhone-only — there is zero Android compatibility, making this a non-option for non-iPhone users
- No USB-C charging; uses Apple's magnetic charging cable, which is a separate purchase if not included
Frequently Asked Questions
What does "Renewed" mean for this Apple Watch, and does it come with a warranty?
Renewed means the watch has been professionally inspected, cleaned, and tested to confirm it functions like new — it's Apple-certified or third-party refurbished depending on the seller. Cosmetic condition is typically rated Good or Excellent. Amazon Renewed products carry a minimum 90-day satisfaction guarantee; check the specific listing for full warranty terms before purchasing.
Does the cellular model work with any carrier, or am I locked to specific networks?
The Series 8 cellular model requires a separate cellular plan from a compatible carrier — typically the same carrier as your iPhone, through their Apple Watch plan (usually $10–15/month added to your phone plan). You can use the watch independently for calls, texts, and music streaming without your iPhone nearby, including basic international roaming on supported carriers.
Is this watch compatible with my current iPhone, and what iPhone do I need?
Apple Watch Series 8 requires an iPhone 8 or later running the latest version of iOS. It is not compatible with Android. The watch pairs exclusively to a single iPhone and is deeply integrated with the Apple ecosystem — Health app sync, iMessage, Apple Pay, and Find My all require an active iPhone pairing.
What health features are actually on the Series 8 that weren't on Series 6 or 7?
The Series 8 adds a wrist temperature sensor — a new hardware addition that enables retrospective ovulation estimates for cycle tracking and provides body temperature trends. Crash Detection is also new to this generation: the watch uses an accelerometer and gyroscope to detect severe car crashes and automatically dial emergency services. The ECG, blood oxygen, and fall detection features carry over from Series 6/7.
How durable is this watch for active daily use, including swimming?
The Series 8 is rated WR50 — water-resistant to 50 meters, suitable for swimming and water sports. It carries IP6X dust resistance certification. The crack-resistant display holds up to daily wear including workouts and outdoor activities. The graphite stainless steel case on this model is more scratch-resistant than the aluminum variant, though heavier.
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